I forgot to mention two important details in the video: 1. The temps were taken with an IR Gun on the cylinder heads, right near the spark plugs 2. The drops of 25*-50* on the cylinder heads result in a drop of 7*-12* ET (Internally mounted OEM heat sensor)
I have a set of the mighty mite fans. They were a bit expensive but they do work. I had one of the fans go out and they sent me a new fan. Don't worry you can install the new fan yourself easy.
@@mikegroft1569 Great to hear. Yes, fans are an important thing to have in warm weather or stop and go. Both the Mighty Mites and the ForceFlow work really well.
I have a 1991 HD Tour Glide, I installed 2 fans on the oem oil cooler to help assist the cooling and a oem HD engine Fan. That mounts on the left side were the horn is located and I relocated the horn underneath the left passenger floor board. It sure does help keep my old EVO cool. I will now install an External Breather. And remove the Air / Hot Box. And keep improving my bike.
I recently installed a set of Might Mites on my '14 Street Glide and I was still pretty damn surprised at just how much air those little fans will pump out! The mod will definitely come in handy the next time I'm stuck in stop and go traffic 🤙🏻
Ok i glad you brought this up so i can tell you how i manage my two money pit Harleys. I have two bikes that are similar as far as cooling or somewhat . One is a 13 Roadglide with a modified SS 143 ..Compression is 12.2 and both bikes have ss 640 cams . Both bikes have oil temp gauges that replaced the silly air temp gauges . I use the mity mite cooling fans on both bikes . The other is a 12 street glide with a SS modified 124 set at i think 11.6 . Both have oil coolers of course. Both have chain drive ect ect . Here is what i do to make these bikes work for me . I refuse to ride in large towns stop and go traffic. I avoid this peroid . I dont like to ride in 100 deg weather not interested. The mite mite fans help a lot . I keep a check on the oil temps of these engines . I had good experience doing this. Ridding two seems to as expected drive up the temp a bit . I would like to increase the oil cooler size a bit on both as i think these coolers control heat for x amount of hp but since these make more then more heat rejection is needed . I not going to cook a expensive engine from stop and go traffic in 100 deg weather. I just load my bike up in a inclosed trailer and go to where cool is and ride. Or wait till it gets cool and ride . Both these money pits are fun to ride because they run pretty good on 91 0r 93 fuel . Keeping the temps in check is important to me
Good to read that you are taking care of your bikes. Keeping that temp down improves power and engine longevity. There are quite a few little things that can be done to lower the temps even more, and possibly widen your riding window. Here's a video on some low and no cost thing that cam be done- ua-cam.com/video/o3T3yA9BKwE/v-deo.html
Yes, either one will work well on your Heritage. www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm or The Mighty-Mite at buylovejugs.com/?ap_id=DKKevin
This is great info. Many thanks. I like the appearance of the mighty mites. They are not so big as to detract from the engine. I'll be getting some this winter, maybe santa will show his stuff and drop some down my chimney. That would be nice because I like to ride in parades. I want to make a side note. I watched a video where a guy did a very scientific test of oil and its ability to remain stable at high temperatures. Synthetic oil was able to remain safe as a lubricant at much higher temperature than standard petroleum oil. I highly recommend Amsoil for the air cooled engines. My 2000 twin cam now has 88,000 trouble free miles on it and it is not noisy at idle. I have the factory mufflers so we can listen to the engine. No unusual noises in there. I got the message regarding synthetic oil and heat tolerance when I bought a new vehicle with a turbo. The factory manual recommended synthetic because it was less likely to clog the tubes that fed oil to the turbo. Now with 258,000 miles it still runs great.
Thank you for the comment. I think you'll like the looks and function of the Force Flow Fan. Mighty Mites will work also. www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm No doubt, synthetics can take more heat than conventional oil. Usually, on synthetics it is the additive package that will fail before the oil.
Awesome! I am sure if your bike is running hot and you are in a lot of stop and go traffic, you will enjoy the benefits of having it on your bike. You can see more about the Jim's Fan at this link - www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm Please feel free to contact us with any questions; Support@DKCustomProducts.com 662-252-8828 Thank you for commenting! MB
I’d think the rear cylinder at higher speeds is soaking in the hot air blowing back from the front. And my oil tank is right behind them both. I wonder what that is cooking at? I know that I’ve felt the oil cap through my jeans . When it starts feeling like I have a lit cig in my pocket I let her rest. That first 40 something degree drop was impressive. Glad I saw this before pulling the trigger on other products. 👍🏼
You can get a dipstick temp gauge to know what your oil temps are running. Max temp you want the oil running at is 230 F. Here is a video that talk about optimum temps for the different HD engines- ua-cam.com/video/rWOdQOtDv6A/v-deo.html
This was a long debate with many, air-cooled or water-cooled. Air cooling is simple because there isn't an extra system to maintain and they weigh less, however water-cooled motors have higher fuel efficiency, better performance (the same sized engine can run higher compression ratios and thus generate more power) and also lower emission (especially important when exporting bikes to countries with strong emission laws). Air cooling also has the size limitation - especially on motorcycles - as the heat sinks have to be increased with the square of the displacement increase size. I personally had three bikes in my 15 years or riding, none was water-cooled, but I can understand why so many motorcycle manufacturers eventually went to that.
So much depends on what bike you have, what kind of riding you primarily do, the weather you live in, and most importantly, what temperatures your bike is experiencing in the metal and in the oil. This entire series linked below gives the whole picture and should help you make the decision- ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
I just did the UltraCool 3.0 it's strictly oil temp. I still watch my engine temps run high 280°f+ in stop & go for 30-40 min before oil gets to 230°f & fans kick in & it doesn't lower engine running temps that much 270°, but that's better than 310° I'm considering the horn fan in combination & removing left side seat shield to direct better flow.
Well they stand to gain massive benefits from water cooling, like more consistent power production, and the obvious better cooling, which in itself will allow for higher compression ratios which will mean more power and torque. It can also be done without it even looking like it's liquid cooled; Harley's used steel tubular frames, I don't see any reason why Harley-Davidson couldn't just make a portion of that tubular frame basically a radiator. Run the hot coolant through a section of it, make it a little bit thicker, use it as a radiator, it would never look like it was a liquid-cooled bike but it would have all the benefits of one.
An interesting idea for sure. Back, almost 20 years ago, I considered using the engine guard as an oil reservoir/cooler. Got very close to doing it...but realized I did not want to have to keep any bare skin away from the engine guard to avoid being burnt. About 10 years ago I explored a few different bikes that used parts of the frame for the oil tank...decided against that for a variety of reasons. The Twin Cooled bikes have dual radiators, each with their own fan, and the coolant runs up near 200 F. Not at all sure how it would work out running coolant thru the frame...no fins for heat dissipation, let alone a proper radiator. I think HD is pretty committed to head down the path of the massive radiator on the 100% water cooled RevMax engine. We'll see over the next couple of years how that works out.
I mean i own a scout bobber and a lowrider s and really i never understood why youd need to buy a fan for overheating... When just have a watercooled engine makes more power. I understand harley can get away from the aircooling... I think it holds them back from my age group of riders... Ive had to stop and pull off in a traffic jam cause my harley was too hot and i didnt want it to overheat, but ive also been in one with the scout bobber and its not even a thing you have to worry about... Btw love your product's
I have three Harleys, 1978 Shrine FLH, 1991 Springer Softtail, and a 1992 Electra Glide Ultra Classic. Will any of your fans work on my rides. Thanks in advance for your time. I just wanted to add that I have standard oil coolers on all three bikes
I have had, and still have a set of Love Jugs Cooling Fans on my 2010 Limited Electra Glide with the 103 with hard Lowers that I install back 2010. I remember back in 2010 or 11 that Love Jugs said that the fans lowered the engine temperatures by 100 degrees. I liked how they're able to plug into the bike's harness under the seat and work off my Aux switch on the dash. After twelve years they're still working, still cooling my engine.
Glad you are enjoying your ride. No doubt the fans help big time. We've never seen a 100 degree drop (and I have had LJ's on 4 of my personal bikes), but they do decrease the heat by a lot.
I've actually made my own fans/ mounting brackets etc. Fans are IP67 rated, however I'm getting fans with a higher CFM rating. The fans sit close to the cylinders, dimensions are 25mm thick, by 120mm square. I know a little large, to a degree, but I'm also placing a grill that matches the fins of the engine. Works well. You guys where my inspiration. Thank you. Cost was very low, otherwise I would have purchased yours. 🙂
Hey there, I'm currently stuck in Australia ( working) ( I live in New Zealand) but definitely when I get back, I'll take a pic. But due to the virus etc.
I have a 2006 dyna with a built 2012 103. I am running a fxrt style fairing with the lowers and bike is getting way hotter than I like . ( power vision et getting to 270) mostly if under 35mph. Once I am rolling about 40-50 it comes down to 230-240.. in your opinion would mighty mites be better than the Jim’s?? I love the look of the Jim’s but want what cools best.. thanks for all the great videos..
The Mighty Mites cool a little better, not a lot, but in the 5-10 F range, than the Force Flow. But Love Jugs, the company, is not doing well. The owner passed a couple of years ago and the daughter took over. Quality and Customer Service has gone way down hill, and there is talk of them closing up shop.
@@kfiercohen6910 It depends on what kind of riding you do and what kind of temps you're experiencing. Oil temp takes a long time to normalize with the engine temp...so lots of short and/or slower speed riding will benefit more from the fan. Longer, higher speed riding is when your oil starts getting as hot as the metal in the engine. You already have an oil cooler on your Road King, so even in those situations it is hard to say without knowing your engine and oil temp which would be better. There is a good video with info on optimum target temps for the engine and oil at this link- ua-cam.com/video/rWOdQOtDv6A/v-deo.html
Yes, the bike in the video is a Softail with a Coil Relo and Mighty Mites. Use a coupler nut and a stud to extend the threads so that you can mount both. Here's a link to a photo - www.hdforums.com/forum/attachments/dyna-glide-models/520044d1501254051-any-early-reviews-on-the-love-jugs-mighty-mites-coil-20cover-20wards-20fans_zpsremyx0n9.jpg This is the hardware needed: Stainless Fender Washer A stud of the same thread that is already on the bike (5/16-18) A Coupling nut (5/16-18) Here's a photo- i1088.photobucket.com/albums/i339/DKCustom/Softail%20coil%20relocation/CoilFCSHDW_zps49110ab8.jpg
Hi, have anther question for you I’m going to have a Jim’s force flow cooling fan installed and I’m going to have the thermostats wire bypassed and use the manual switch is it ok to run the fan on all the time when you ride or is it manly used for slow speed in town riding. Thank You
I run mine 100% of the time. The engine generates more heat at 70 MPH than around town riding, so the fan is even more useful at highway speeds. Here's a video showing temp tests at different speeds- ua-cam.com/video/wRRtRYWm5rw/v-deo.html At around the 9 minute mark it shows the temps at Stop-n-Go, and 55 MPH and 70 MPH. Pretty interesting. KP
We do not. We are planning on shooting one week after next. Then it will be here a week or so after that. We've installed plenty, but never done a video, it is pretty simple and good instructions come with it. Price varies, depending on what bike you're using them on. Here is a link to them all- www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
Now this might be a dumb comment/question but if we put forced air on the left side of the rear cylinder to cool it down, wouldn’t the right side of the said cylinder would remain hot? Therefore voiding any cooling benefit?
There is no doubt that the air passing the right side of the cylinders is a bit warmer than the air passing the left side. However, it is still much cooler than if the air from the fan was not blowing. This is evidenced by that heat sensor on the M8's being on the right side of the rear cylinder, and it being 35-65 F cooler with the fan on than off. You may find this video useful/interesting- ua-cam.com/video/qMVwT0nunfU/v-deo.html
They do the job nicely! Devin has been running one on his Stage IV Street Glide for over 6 years now. I have had one on two of my bikes, currently running one on my Twin Cooled 2019 M8 114.
@@FLHCSfan68 Generally Sportys do not need a fan to maintain optimum temps. Here is a video where we do address optimum temps for a Sportster- ua-cam.com/video/rWOdQOtDv6A/v-deo.html If a Sporty does need a fan, the Mighty-Mites will fit it.
Couple years ago my cousin and I riding out with long long traffic jam crash his H&D actually stuck up motor will not turn had to have it towed luckily next day put Marvel Mystery Oil in jugs and it cranks up
Thank you, glad you found it useful. If you go with the Love Jugs, then the Mighty Mites are better than their other options. Between the MM's and the ForceFlow, the effectiveness is a little better on the Mighty Mites, but not so much better that if you like the looks of the ForceFlow better that you would go wrong with the FF. I personally like the Chrome MM's on my retro looking Softail, but prefer the Black FF on my Tri Glide. My Sporty runs cool enough without any fans, so do not have them on it.
@@DKCustomProducts Thanks, that was just the info I was looking for as I like the looks of the FF more. Gives some symmetry to the airfilter on the right hand side =)
Just wondering...with cooling fans blowing air over the jugs and heads to cool the engine left to right, does anyone have feedback on the additional felt heat? How's your right leg doing? DK - Really appreciate all the work you guys have put into testing and development. I'm planning to purchase a few items - after I do a leak down test to see if my trip to Arizona and back damaged my engine too much. It got awfully hot last June in Oklahoma and Texas and I really noticed the sluggish performance along with the dramatically increased felt heat through the seat.
Good to hear you are finding the videos useful, appreciate the comment and your business. On the fan, if you wear shorts or thin pants, you may feel a little on your right leg when at a stop. However, the overall heat is less and generally folks will feel cooler with the fan.
@@freddychico3621 Yes, it will reduce temps substantially on your Stage 4. However, there are other things you can do that are less expensive, that may get you the reduction in temps that you are looking for. I generally do the free and low cost first, working my way down the list until I get to the optimum temps. Here is a link to the list- www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm
Wondering if there’s any fans that pull instead of push or if you could simply reverse the fans on the market. I feel like this would be beneficial in keeping AIT down as the fans I’ve seen blow from the horn side towards the intake side. I’ve fabbed my own breather filter kit I’m thinking I could probably make this happen too. Will report back after I record temps. Thanks for your videos and great info as always.
We have tested that (pulling instead of pushing) and did not get nearly as good results. I agree with you on the pushing from the left side to the right side where the intake is. At slow or no speed that seems like it would make a measurable difference, above 35 mph, depending on your intake, not sure that it does. Looking forward to seeing what you report back. 👍
@@DKCustomProducts That’s good to know. Thank you. I did read in a forum a guy who had the love jugs and simply reversed the fans inside the housing with decent results, but I feel pulling fans would definitely need to big bigger or more powerful to achieve desired results. I’ll see what I come up with and get back with some solid temp numbers. Thanks DK 🤘🏻
@@ketobeast8489 Yes, pushing is a focused stream of air (more effective) and pulling is a much less focused movement of air. Looking forward to your report.
@@Ericvl2102 I wouldn’t think so as there are many fans setup for extracting heat, but I have not tried this as of yet so I can not give a definite answer as to Harley engine temps being pulled over the fans.
Thank you. Glad to read you are enjoying the videos. Yes, I think you would be very happy with the results of some extra air flowing over your Deluxe's engine.
Unfortunately the 14 and up bikes with Twin cooling run HOTTER than the fully air cooled models. You can see a couple of videos on the subject below. There are many things you can do to cool them down, you can see a report on what each of them are, and how much they cool down in the link at the bottom. ua-cam.com/video/MF0hO-w2hz8/v-deo.html ua-cam.com/video/6AhPqVlvE-w/v-deo.html Report Link- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
It looks like this goes in the place where the horn is. Is the horn removed? I have a 2011 Street Glide 103 twin cam motor and this looks like the horn is exactly where the fan needs to be installed. Can you provide more info on this. Thank you.
Go to this link - www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm It has all the details and photos. You will see that there is a horn built into the ForceFlow Fan housing, taking the place of the factory horn.
The Mighty Mites talked about in this video are Love Jugs. Get them at this link- buylovejugs.com/?ap_id=dkkevin See written report on how well they work here- www.dkcustomproducts.com/shoptalk/cat/dknews/post/MMCF/ See video report on our testing here- ua-cam.com/video/2ruppXkp2CU/v-deo.html
Hey K Have a carb RDking 2006 running catch can,jagg slim cooler ans runnning amsoil syn.running average 212-220 at max..on HD oil temp dip stick.you were spot on with the catch can..runs cooler.never experienced trafic where i live and i plan accordingly..do you have a review on the mitymites compared to the other on you would like to put on your trike...keep up the good work.always interrested in your vid...very informative
Thank you for this video, I'm just wondering why haven't I heard more about these fans or better yet why aren't they put on at the factory.? !!!!!!!!!! Anyway, first time watching and new subscriber.
The fan market has been evolving, especially over the last 14 years since HD went all EFI and really lean due to EPA requirements. We discovered these particular fans about 5 years ago and have been well pleased with them. There was another company making some good fans also, unfortunately they went out of business. Regarding Harley...sometimes it is perplexing why the do and don't do certain things.
Yeah, I know that feeling. Here is a list of parts to help cool down your ride, some are no cost, others low cost, and others a bit more. www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm Here is a vide we did 10 Quick Tech Tips- Harley Comfort for LOW & NO $$- ua-cam.com/video/o3T3yA9BKwE/v-deo.html
Gents. I ride a 2020 Road Glide Limited twin cooked M8. With the oil relocation, if you drop your bike on that side, are you going to hit the oil filter in the new location??
The Oil Filter is well tucked in under the passenger floorboard. You would hit your bags, bag guards if if you have them, floorboard, and fairings all before you would hit the Oil Filter. The furthest any portion protrudes from the bike is 5.75" from the cap of where the Oil Filter is installed. You can see a picture of the cap and how well it is tucked it at the product page at this link - www.dkcustomproducts.com/cool-n-clean-oil-filter-relocation-kit-harley-2-wheel-touring-dk-cnc-ofr-2wt.htm Please feel free to contact us with any questions; Support@DKCustomProducts.com 662-252-8828 Thank you for commenting! MB
Hi Kevin. I'm with Rosymaydog. I just put the coil relocation kit on my 17 Slim S. Will these Mightymights work with that? Btw thank you all at DK for doing these videos. They are very helpful.
Yes, the bike in the video is a Softail with a Coil Relo and Mighty Mites. Use a coupler nut and a stud to extend the threads so that you can mount both. Here's a link to a photo - www.hdforums.com/forum/attachments/dyna-glide-models/520044d1501254051-any-early-reviews-on-the-love-jugs-mighty-mites-coil-20cover-20wards-20fans_zpsremyx0n9.jpg This is the hardware needed: Stainless Fender Washer A stud of the same thread that is already on the bike (5/16-18) A Coupling nut (5/16-18) Here's a photo- i1088.photobucket.com/albums/i339/DKCustom/Softail%20coil%20relocation/CoilFCSHDW_zps49110ab8.jpg
@@DKCustomProducts YOU ROCK !!!!!!!! ty. I may do this over the winter. I am leaning more towards a fan assisted O.C. but what I'm thinking is doing a total OVERKILL. Buy installing an Ultracool (better than Jag imo) O.C. DK's Oil filter relocation kit and mighty-mites fans on my Slim. Still trying to decide. That's nice chunk of money. Hmmm Maybe DK can do a DK Ultracool PACKAGE.... (insert thinky guy) and include all I mentioned above. hint hint hint. lol Thanks again
I am not sure what bike you have but lifting the front and rear of your Tank and adding some Cooling Deflector Wings would certainly help cool down the rear cylinder. Here is a video to 10 Low to No Cost ways to cool down your ride- ua-cam.com/video/o3T3yA9BKwE/v-deo.html Here is a video playlist on why and how to cool down your Twin Cam and M8 - ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html Here is a written report on why and how to cool down your bike - www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm Here is a link to the Tank Lift Product pages - www.dkcustomproducts.com/gas-tank-lift-kits-c4.htm Here is a link to the Cooling Deflector Wings Product page - www.dkcustomproducts.com/catalogsearch/result/?q=COOLING+DEFLECTOR Please contact us with any questions; Support@DKCustomProducts.com 662-252-8828 Thanks for commenting! MB
@@DKCustomProducts love your videos btw. I’ve only been riding for 2 years now and the information you’re giving is great stuff. I’ve watched a few of your videos and I want this bike to last.
Thanks for doing this series. I just got a 98 bore kit that included an upgraded oil pump with professional tuning thundermax put on my 06 SG. I have the mighty mites. Do you think it is necessary for an oil cooler?
If your oil is running more than 230 F, an oil cooler is a good idea. Here's a link to a video on optimum engine and oil temps. ua-cam.com/video/rWOdQOtDv6A/v-deo.html Here's a link to what we do to keep the engines and oil in the optimum temps- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
@@DKCustomProductsHuge thank you! I am binge watching your videos, including your suggested video. My build is almost finished; I hope to get it back this week. I am still unclear how to know the oil temp. I think in another video you said oil temp should be close to the engine temp with twin cams ..correct?
@@shavenonthedarkside6708 Good to hear you are liking the videos and finding them useful. A dipstick oil temp gauge is the easiest way to know the oil temp. Yes, if a Twin Cam, once it has been ridden for around an hour, will have the oil come within a few degrees as the temp on the sensor in the cylinder head. Highest temps you want to see on a Twin Cam is 230 F on the cylinder head temp sensor and 230 F on the oil.
I have a Harley Touring twin cam Milwakee 8. I cant stand the heat? my dealer put on a setting to stop rear cyclinder when i am in traffic. still hot! dont have Fans what should i use?? FLHTK Unlimited Touring. Cant RIDE In Summer. Any Suggestions??
Not sure what bike you have, there are Touring Twin Cams, and Touring Milwaukee-8's. But the same holds true for both...They run very hot, too hot for most folks. There is no one big thing you can do to reduce the heat to a comfortable level, but there are quite a few little things you can do, that will add up to a lot. You can see a written report at the link below, you can also see a video series at another link below. For the fan I would use the one at the link listed last below. www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
If you wear shorts, you will definitely feel it. Jean, some folks feel it, some don't. One thing is for sure, there is far less heat radiating out to the legs, because the engine is much cooler.
Yes, the bike in the video is a Softail with a Coil Relo and Mighty Mites. Use a coupler nut and a stud to extend the threads so that you can mount both. Here's a link to a photo - www.hdforums.com/forum/attachments/dyna-glide-models/520044d1501254051-any-early-reviews-on-the-love-jugs-mighty-mites-coil-20cover-20wards-20fans_zpsremyx0n9.jpg This is the hardware needed: Stainless Fender Washer A stud of the same thread that is already on the bike (5/16-18) A Coupling nut (5/16-18) Here's a photo- i1088.photobucket.com/albums/i339/DKCustom/Softail%20coil%20relocation/CoilFCSHDW_zps49110ab8.jpg
Are the mighty mites better then love jugs in your opinion ... ?? Wish is better between the 2 you spoke of on your video? Have a 2014 flhtcu .. air cooled .. no water in heads !!
Yes, that is close to my experience also. Moving fast enough for good air flow, but not so fast that the engine is generating more heat than the wind can overcome. 40-55 mph seems to be the sweet spot for running the coolest.
What model Jim's fan would I need for my '17 dyna fxdls because the horn is in the front, therefore not needed in the fan set up..Also would it be a smaller unit than the one with the horn relocation, or are they all pretty much the same size? TIA👍 Also thanks for all the info you guys are putting out in these vids..The level of information you include is second to none👌
Good to hear you are liking the vids. 👍 The ForceFlow fans only come in one size, and they do have a horn in there. You do not need to hook it up if you don't want to...OR, you could hook it up and have both horns blow. www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
@@DKCustomProducts So are they different for the twin cams then the Milwaukee 8s because on your site they are listed different when choosing, or is it just different mounting hardware?
Yeah, the HD LCD temp dipsticks are hit and miss....some last for years, others not even a year. They have only a 1 year warranty. We are testing out two analog oil temp dipsticks from JesCustoms...cannot say how well they do over the long haul, one is 4 months old and the other is about 1.5 years old.
Jims has been out of stock of the TC models for a while now. We are hoping that they will be coming back into stock soon. You can email us at Support@DKCustomProducts.com and we can put you on a list to let you know when they are back in stock! Thanks for commenting!😎👍
The Force Flow Fan will work great on your '22 Street Glide. You can see the link to them here- www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
Come to las vegas mid summer, or Phoenix and say this. Additionally with modern day epa standards and performance numbers from just other bikes it will most certainly help. I give it 2-3 more engine evolutions before Harley WILL be water cooled. Honestly we're just waiting for the boomer base to die off, that way Harley can finally innovate
@@DKCustomProducts I'm perfectly fine with having both for now. I'd love to keep seeing them innovate, while retaining their bread and butter. No reason they can't have both. And considering the Sportster isn't aimed at the older generation anyways then I see no problem with it getting the change. That said yeah the heat is awful down here, gonna do an oil cooler and the fan at some point and hope it works
They are good for about 5 degrees cooler...not much, but a little. The Mighty Mites are a bit less expensive too. However, I like the looks of the ForceFlow better, and with all the other cooling mods I have, this tilts toward the ForceFlow on my Touring model. On the Softail in this video, I do like the MM's better for the look.
@@DKCustomProducts Looks like the mighty mites blow on each cyl head separetly. I too like the look of Jims forceflow better. Which installation is easier and how does the forceflow hold up to vibration?
@@bigdog3495 Yes, there is a strong focused flow of air from each fan directly toward the spark plug area on each cylinder. I would say the installations are about the same, maybe a tad easier with the ForceFlow, since there is no reinstallation of the cowbell, AND no monkeying around trying to get it centered like on the MM's. As far as vibration, the FF vibrates less...it has two mounting points rather than just one. We've never had a FF fail (but that does not mean that failure is impossible), we have only had one MM fail, and that was on a Stage iV bike with aggressive cams that had a lot of vibration.
Do you still stand by the idea that the Might Mites are more effective than the full size Cool Master? I put an Ultracool oil cooler and considering the Love Jugs but don't understand how a smaller fan can cool more or more effectively.
The testing shows that the smaller ones are more effective. They spin faster is the probable reason they cool better. Unfortunately there was a big recall on them...thousands were made wrong. They have been in and out of stock for months. There are some available right now at this link- buylovejugs.com/?ap_id=DKKevin If you prefer a different look, the fans at the following link cool almost as well as the Mighty Mites and very close to the same as the Cool Master. www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
@@DKCustomProducts Wow, thank you for that information. Are the MM on sale at your link unaffected products? Do you know if LJ has recalled all the incorrect ones? I keep going back and forth on the MM vs the Cool Master. The black Cool Master looks to be a newer version than their original fans. I see the comparison of the two and it seems like they do perform better overall, the big fans have a slight advantage in stop and go traffic which is impossible to duplicate. Believe me if I can save $100 and have the same effect I would much rather do that lol. I think coupling with the fan assisted oil cooler it probably won't matter much anyway.
@@sethg8501 Yes, all the affected ones were recalled many months ago...none of them are in circulation. But then it took quite awhile to catch up with demand over the next few batches because they lost all that time. The MM definitely cool better. None of the defective ones are for sale. It was a bad weld on the stem.
@@DKCustomProducts awesome, thank you so much for that info! I think I know which way I will be going now. And I will definitely be using your link to purchase. Along with the frame mount kit and I have been told that is a must have with these. I used the vibration master on the last set I installed and it worked ok. I hope the Frame Mount Kit is a little more stable.
I just had mine set on thermostat, i kept forgetting to turn them on. And fyi they used to be mzde by a veteran in his garage until he sold them to love jugs
We have done no heat studies on Evo's. If it is running hotter than optimum temps, a fan would be useful. I am sorry we do not have more info for you. Thanks for watching our vids!
Yes. There is much more work taking place at moving the bike down the road at 70 mph. Over time, in STOPPED traffic (not stop n go) you may approach the temps seen at 70 mph. But if you are stopped for 15 minutes or more, shut if off and it won't get as hot as running down the road at 70 mph. Here is another video with numbers showing heat at different speeds and in stop n go. ua-cam.com/video/6AhPqVlvE-w/v-deo.html
I am sorry for the quality of the sound in this video it was three years ago. We have since gotten better mics and video equipment. Thank you for commenting! MB
Kevin, thanks so much for this series; I'm learning a lot and appreciate your sharing what you have found out. I really like the look of the Jim's Force Flow fan, and was looking at your web site for listings and info. Do I have it right that I need an additional coil relocation kit to mount the Jim's fan on a 2018 Sport Glide? Thanks again.
Really happy to hear that you are finding the videos useful. On the M8 Softails, the Force Flow needs this coil relocation ***M8 SOFTAIL FITMENT NOTICE- In order to install the Forceflow on the M8 Softails, it is necessary to re-locate the coil. This Kit includes a turnkey coil relocation system to move the coil to the front of the motorcycle inconspicuously tucked underneath the neck of the bike, in-between the frame tubes. When ordering at the following link, it asks what bike you have, you would choose Softail Milwaukee-Eight and it comes with this coil relo.
Hate to say it but Harley but the 2 cylinder for Harley is going to disappear eventually. Despite what the old school think or say. The 4 or 6 cylinder liquid cool is coming.
Please somebody help me understand. Harley is in business of producing bikes for over a century. Why doesn’t motorcycle that cost as much as a car have air cooler fan installed right out of factory. It might not be as good of machine as it is portrayed.
Good question. Possible answers...they want you to buy more stuff after the purchase of the bike. They are not needed for the average rider, since the average rider only does around 3000 miles a year, and the warranty is only for 2 years. 6000 miles will not require warranty work for heat damage. Here is one of the things HD is doing- ua-cam.com/video/mzzc-ydotOQ/v-deo.html We'll see how that works out.
Hey sir love your videos. You have helped me and my father decide on the smaller fans from love jugs. We were wondering whether to get an oil cooler as well after the fans? He has a TC 88 and I have a sporster 1200 2004
@@DKCustomProducts thank you so much for your response. We've been watching all your videos they are just so great! Planning a roadtrip starting in North Carolina where we live then hitting the open road no cell phone, hunting and fishing for food, sleeping in tents, the best way, and you're videos are helping us immensely in prepping. Thanks for taking the time to make these videos they are absolute gold!
@Joogullae Thank you for the comment! Very glad to hear that the videos are helpful. Sounds like some fun times. Live Free, Ride Free & Enjoy your Roadtrip!
Never done any measurements of that. If it is above 40* ambient I am always running the fans, and it is cooler, so there is more air on both cylinders with the fans than without.
Having two cylinder behind each other has never been good V twins should be transverse and not hidden behind the front forks and mudguard. Water cooling only allows cooling to be moved to a better place for airflow.
I own a Twin Cam 88 and a 75 Ironhead. The Ironhead runs so much cooler than the 88. Why? Well let’s tell the truth instead of looking for excuses. Big inch Harleys are woefully underfinned on the heads and cylinders,; yes rears are hotter but that has always been the case; it’s nothing new. Just accept the fact that they are in engineering terms and capacity outside of their comfort zone by a country mile. They should never have gone beyond 74 cu. Fitting fans etc is just a bandaid for a broken limb. The quicker Harley learn that the design is bust in these idiotic capacities the better; the customer always pays.
You think that would be enough? How much bigger would they need to be? We've never tested anything like that to know what the results would be in cooling or looks.
Yeah, we recommend doing one cooling mod at a time...then when you get your temps to the optimum, no more is needed. Fans are one of the last things to do, only if you need that extra cooling. I regularly run in 90-100 degree temps, with a heavy load and/or at speed, so I need them to get my temps to the optimum level.
Nope, don't know anyone that can do that. 😂 We are quite a bit less expensive than Harley branded parts...but running these newer Harley's (2007+) can get quite expensive, no doubt.
Harley is so far behind. Why didn't they go with water cooling years ago? Oh ya, now they finally replaced the girls bike (sportster) with water cooled version finally after all these years. Too little - too late. My Hondas are water cooled and never have over heating problems like Harleys do. While riding to Sturgis across South Dakota, Harleys had to slow down because they were over heating in the 100 degree heat and couldn't keep up to my 1100 Honda Shadow. A $30,000 bike that can't keep up with a $4000 used Honda? WTF?
Thanks for your comment. We will see how the Rev Max is accepted. Gotta remember, there are millions of us that like the Harley with it's current design. Different Strokes for Different Folks.
Yeah, good fans are not cheap. There are many less expensive things you can do to cool down your ride. Some are even free, see the list here- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
Can the Jim’s and Mighty-Mite can be hooked up to a 131 M8 and is the 132 considered a CVO or NON CVO. Speaking of 131 crate engine not 131 kit but how about on both?
Don't know about the Force Flow on a 131, but the Mighty Mites do fit on the 131. I've seen it. Call or email the shop and they can check on the Force Flow for you. I am not sure there is a difference between the crate and the kit.
If that is your ET, that is Much Too Hot. You may find this video useful where we talk about Optimum Operating Temps. Starting at the 6:00 mark is where we talk about the M8 ua-cam.com/video/rWOdQOtDv6A/v-deo.html BTW, what most dealers say and what Harley Corporate actually puts in writing are vastly different. What Harley puts in writing, in the manual, is that Normal Operating Temperature is 230* F.
The Force Flow Fan has been Tested on M8 107 and M8 114 Models, as well as Twin Cam 103 models. It is not the only thing used to drop the temps, but is a very powerful part of our cooling strategy. You can see a breakdown of how much each component drops the temperature at the link below. These fan are easily good for a 50* drop in engine temperature in stop n go traffic on a hot day. Even at highway speeds they are good for a 10-15* drop in temperature. www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm
All depends...engines that vibrate more, with an aggressive cam, on average will wear out faster. Engines that have had no other heat strategies employed, on average will wear out faster. I have heard of the fan wearing out in 6 months, but the vast majority are still running fine after many years. I have one that has been on a Street Glide, with mild cams, and is working fine 6 years and over 50k miles later.
I forgot to mention two important details in the video:
1. The temps were taken with an IR Gun on the cylinder heads, right near the spark plugs
2. The drops of 25*-50* on the cylinder heads result in a drop of 7*-12* ET (Internally mounted OEM heat sensor)
What IR Gun is accurate
I have a set of the mighty mite fans. They were a bit expensive but they do work. I had one of the fans go out and they sent me a new fan. Don't worry you can install the new fan yourself easy.
@@mikegroft1569 Great to hear. Yes, fans are an important thing to have in warm weather or stop and go. Both the Mighty Mites and the ForceFlow work really well.
I have a 1991 HD Tour Glide, I installed 2 fans on the oem oil cooler to help assist the cooling and a oem HD engine Fan. That mounts on the left side were the horn is located and I relocated the horn underneath the left passenger floor board. It sure does help keep my old EVO cool. I will now install an External Breather. And remove the Air / Hot Box. And keep improving my bike.
Good to hear! 👍 Bet you're enjoying that Harley! Don't see a lot of those around anymore....wish we did.
I recently installed a set of Might Mites on my '14 Street Glide and I was still pretty damn surprised at just how much air those little fans will pump out!
The mod will definitely come in handy the next time I'm stuck in stop and go traffic 🤙🏻
They are really good for keeping that rear cylinder heat down while cruising too. 👍
how much are the mighty mites?
Ok i glad you brought this up so i can tell you how i manage my two money pit Harleys. I have two bikes that are similar as far as cooling or somewhat . One is a 13 Roadglide with a modified SS 143 ..Compression is 12.2 and both bikes have ss 640 cams . Both bikes have oil temp gauges that replaced the silly air temp gauges . I use the mity mite cooling fans on both bikes . The other is a 12 street glide with a SS modified 124 set at i think 11.6 . Both have oil coolers of course. Both have chain drive ect ect . Here is what i do to make these bikes work for me . I refuse to ride in large towns stop and go traffic. I avoid this peroid . I dont like to ride in 100 deg weather not interested. The mite mite fans help a lot . I keep a check on the oil temps of these engines . I had good experience doing this. Ridding two seems to as expected drive up the temp a bit . I would like to increase the oil cooler size a bit on both as i think these coolers control heat for x amount of hp but since these make more then more heat rejection is needed . I not going to cook a expensive engine from stop and go traffic in 100 deg weather. I just load my bike up in a inclosed trailer and go to where cool is and ride. Or wait till it gets cool and ride . Both these money pits are fun to ride because they run pretty good on 91 0r 93 fuel . Keeping the temps in check is important to me
Good to read that you are taking care of your bikes. Keeping that temp down improves power and engine longevity.
There are quite a few little things that can be done to lower the temps even more, and possibly widen your riding window.
Here's a video on some low and no cost thing that cam be done- ua-cam.com/video/o3T3yA9BKwE/v-deo.html
Thanks, I wasn't sure about those small fans for my HD Heritage Classic FLHCS. Now I feel reassured it will work. Thank you.
Yes, either one will work well on your Heritage.
www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
or
The Mighty-Mite at buylovejugs.com/?ap_id=DKKevin
Love the intro. Nothing like starting your day with a jet spooling up then your Vtwin putting it to rest.
Yeah! I love the sound of that bike!
This is great info. Many thanks.
I like the appearance of the mighty mites. They are not so big as to detract from the engine. I'll be getting some this winter, maybe santa will show his stuff and drop some down my chimney. That would be nice because I like to ride in parades.
I want to make a side note. I watched a video where a guy did a very scientific test of oil and its ability to remain stable at high temperatures. Synthetic oil was able to remain safe as a lubricant at much higher temperature than standard petroleum oil. I highly recommend Amsoil for the air cooled engines. My 2000 twin cam now has 88,000 trouble free miles on it and it is not noisy at idle. I have the factory mufflers so we can listen to the engine. No unusual noises in there. I got the message regarding synthetic oil and heat tolerance when I bought a new vehicle with a turbo. The factory manual recommended synthetic because it was less likely to clog the tubes that fed oil to the turbo. Now with 258,000 miles it still runs great.
Thank you for the comment.
I think you'll like the looks and function of the Force Flow Fan. Mighty Mites will work also.
www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
No doubt, synthetics can take more heat than conventional oil. Usually, on synthetics it is the additive package that will fail before the oil.
I’ve hit the full size love Juggs what a difference!
They gotta have air!
Well shoot in your video you say the mighty mites work better .... they are back ordered so I got the bigger ones
I hope they work ok ???
I was thinking of getting a oil cooler for my 92 electra glide... after watching this video i rather get the fan..thank you for sharing BROTHA!
Glad you found the video useful!
I like this and I'm considering buying that fan for my Street Glide😊
Awesome! I am sure if your bike is running hot and you are in a lot of stop and go traffic, you will enjoy the benefits of having it on your bike.
You can see more about the Jim's Fan at this link - www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
Please feel free to contact us with any questions;
Support@DKCustomProducts.com
662-252-8828
Thank you for commenting! MB
I’d think the rear cylinder at higher speeds is soaking in the hot air blowing back from the front. And my oil tank is right behind them both. I wonder what that is cooking at? I know that I’ve felt the oil cap through my jeans . When it starts feeling like I have a lit cig in my pocket I let her rest.
That first 40 something degree drop was impressive. Glad I saw this before pulling the trigger on other products. 👍🏼
You can get a dipstick temp gauge to know what your oil temps are running.
Max temp you want the oil running at is 230 F.
Here is a video that talk about optimum temps for the different HD engines- ua-cam.com/video/rWOdQOtDv6A/v-deo.html
@@DKCustomProducts I have one I bought about a month ago. Thank you. And that’s why I’m now shopping fans. 👍🏻
@@chefmike8888 Good deal. Fans are an important part of the overall cooling strategy.
This was a long debate with many, air-cooled or water-cooled. Air cooling is simple because there isn't an extra system to maintain and they weigh less, however water-cooled motors have higher fuel efficiency, better performance (the same sized engine can run higher compression ratios and thus generate more power) and also lower emission (especially important when exporting bikes to countries with strong emission laws). Air cooling also has the size limitation - especially on motorcycles - as the heat sinks have to be increased with the square of the displacement increase size. I personally had three bikes in my 15 years or riding, none was water-cooled, but I can understand why so many motorcycle manufacturers eventually went to that.
Yep, and as time passes HD will probably fully migrate to water cooled.
I’m trying to decide between love jugs, or the UltraCool fan assisted oil cooler. Both seem to do good.
So much depends on what bike you have, what kind of riding you primarily do, the weather you live in, and most importantly, what temperatures your bike is experiencing in the metal and in the oil.
This entire series linked below gives the whole picture and should help you make the decision-
ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
I just did the UltraCool 3.0 it's strictly oil temp.
I still watch my engine temps run high 280°f+ in stop & go for 30-40 min before oil gets to 230°f & fans kick in & it doesn't lower engine running temps that much 270°, but that's better than 310°
I'm considering the horn fan in combination & removing left side seat shield to direct better flow.
Well they stand to gain massive benefits from water cooling, like more consistent power production, and the obvious better cooling, which in itself will allow for higher compression ratios which will mean more power and torque. It can also be done without it even looking like it's liquid cooled; Harley's used steel tubular frames, I don't see any reason why Harley-Davidson couldn't just make a portion of that tubular frame basically a radiator. Run the hot coolant through a section of it, make it a little bit thicker, use it as a radiator, it would never look like it was a liquid-cooled bike but it would have all the benefits of one.
An interesting idea for sure.
Back, almost 20 years ago, I considered using the engine guard as an oil reservoir/cooler. Got very close to doing it...but realized I did not want to have to keep any bare skin away from the engine guard to avoid being burnt.
About 10 years ago I explored a few different bikes that used parts of the frame for the oil tank...decided against that for a variety of reasons.
The Twin Cooled bikes have dual radiators, each with their own fan, and the coolant runs up near 200 F. Not at all sure how it would work out running coolant thru the frame...no fins for heat dissipation, let alone a proper radiator.
I think HD is pretty committed to head down the path of the massive radiator on the 100% water cooled RevMax engine. We'll see over the next couple of years how that works out.
If you know about the Nova Project then you know how HD was going to hide the radiator way back then.
I mean i own a scout bobber and a lowrider s and really i never understood why youd need to buy a fan for overheating... When just have a watercooled engine makes more power. I understand harley can get away from the aircooling... I think it holds them back from my age group of riders... Ive had to stop and pull off in a traffic jam cause my harley was too hot and i didnt want it to overheat, but ive also been in one with the scout bobber and its not even a thing you have to worry about... Btw love your product's
I have three Harleys, 1978 Shrine FLH, 1991 Springer Softtail, and a 1992 Electra Glide Ultra Classic.
Will any of your fans work on my rides.
Thanks in advance for your time.
I just wanted to add that I have standard oil coolers on all three bikes
Thank you for checking with us.
Unfortunately we do not have any fans that fit your bikes.
I have had, and still have a set of Love Jugs Cooling Fans on my 2010 Limited Electra Glide with the 103 with hard Lowers that I install back 2010. I remember back in 2010 or 11 that Love Jugs said that the fans lowered the engine temperatures by 100 degrees. I liked how they're able to plug into the bike's harness under the seat and work off my Aux switch on the dash. After twelve years they're still working, still cooling my engine.
Glad you are enjoying your ride. No doubt the fans help big time. We've never seen a 100 degree drop (and I have had LJ's on 4 of my personal bikes), but they do decrease the heat by a lot.
I've actually made my own fans/ mounting brackets etc. Fans are IP67 rated, however I'm getting fans with a higher CFM rating. The fans sit close to the cylinders, dimensions are 25mm thick, by 120mm square. I know a little large, to a degree, but I'm also placing a grill that matches the fins of the engine. Works well. You guys where my inspiration.
Thank you. Cost was very low, otherwise I would have purchased yours. 🙂
Interested in seeing a photo and what the results are in cooling
Hey there, I'm currently stuck in Australia ( working) ( I live in New Zealand) but definitely when I get back, I'll take a pic. But due to the virus etc.
@@aaroncox3340 Stay healthy! Looking forward to the pic.
@@aaroncox3340 I would like to see what you’ve made as well.
I have also done my cooling system myself. Cost me $30 for the fan. 😊
I have a 2006 dyna with a built 2012 103. I am running a fxrt style fairing with the lowers and bike is getting way hotter than I like . ( power vision et getting to 270) mostly if under 35mph. Once I am rolling about 40-50 it comes down to 230-240.. in your opinion would mighty mites be better than the Jim’s?? I love the look of the Jim’s but want what cools best.. thanks for all the great videos..
The Mighty Mites cool a little better, not a lot, but in the 5-10 F range, than the Force Flow. But Love Jugs, the company, is not doing well. The owner passed a couple of years ago and the daughter took over. Quality and Customer Service has gone way down hill, and there is talk of them closing up shop.
I run the love jugs on my road glide seems to work well
Love Jugs do work well! Thank you for commenting! 👍😎👍 MB
I got a jims 120 on my road king. I just purchased the force flow. Let's see how it does!
I believe you will be pleased with it. We have on every bike we've used them on.
@@DKCustomProducts in your opinion is it better than an ultra cool oil cooler?
@@kfiercohen6910 It depends on what kind of riding you do and what kind of temps you're experiencing. Oil temp takes a long time to normalize with the engine temp...so lots of short and/or slower speed riding will benefit more from the fan. Longer, higher speed riding is when your oil starts getting as hot as the metal in the engine. You already have an oil cooler on your Road King, so even in those situations it is hard to say without knowing your engine and oil temp which would be better. There is a good video with info on optimum target temps for the engine and oil at this link- ua-cam.com/video/rWOdQOtDv6A/v-deo.html
Oops my bad .. mighty mites are made by love juggs... thanks for all you do
Put a set of little luv jugs on my 14 Street Glide! Hell I usually run them in town after seeing your video I will run them all the time Thanks
Yeah, rolling down the road at 60, 70, 80 mph generates a lot of heat!
I got the coil relocation kit for my 2005 deuce can I put mighty mites on also.
Yes, the bike in the video is a Softail with a Coil Relo and Mighty Mites. Use a coupler nut and a stud to extend the threads so that you can mount both. Here's a link to a photo - www.hdforums.com/forum/attachments/dyna-glide-models/520044d1501254051-any-early-reviews-on-the-love-jugs-mighty-mites-coil-20cover-20wards-20fans_zpsremyx0n9.jpg
This is the hardware needed:
Stainless Fender Washer
A stud of the same thread that is already on the bike (5/16-18)
A Coupling nut (5/16-18)
Here's a photo- i1088.photobucket.com/albums/i339/DKCustom/Softail%20coil%20relocation/CoilFCSHDW_zps49110ab8.jpg
Hi, have anther question for you I’m going to have a Jim’s force flow cooling fan installed and I’m going to have the thermostats wire bypassed and use the manual switch is it ok to run the fan on all the time when you ride or is it manly used for slow speed in town riding. Thank You
I run mine 100% of the time.
The engine generates more heat at 70 MPH than around town riding, so the fan is even more useful at highway speeds.
Here's a video showing temp tests at different speeds-
ua-cam.com/video/wRRtRYWm5rw/v-deo.html
At around the 9 minute mark it shows the temps at Stop-n-Go, and 55 MPH and 70 MPH.
Pretty interesting. KP
I live in Phx Az . On a 115 degree day in barely moving rush hour traffic YOU NEED LIQUID COOLING.
Do you have an installation video? Cost of the cool fan kit?
We do not. We are planning on shooting one week after next. Then it will be here a week or so after that.
We've installed plenty, but never done a video, it is pretty simple and good instructions come with it.
Price varies, depending on what bike you're using them on.
Here is a link to them all- www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
Now this might be a dumb comment/question but if we put forced air on the left side of the rear cylinder to cool it down, wouldn’t the right side of the said cylinder would remain hot? Therefore voiding any cooling benefit?
There is no doubt that the air passing the right side of the cylinders is a bit warmer than the air passing the left side. However, it is still much cooler than if the air from the fan was not blowing.
This is evidenced by that heat sensor on the M8's being on the right side of the rear cylinder, and it being 35-65 F cooler with the fan on than off.
You may find this video useful/interesting- ua-cam.com/video/qMVwT0nunfU/v-deo.html
I definitely want two of these cooling fans
They do the job nicely! Devin has been running one on his Stage IV Street Glide for over 6 years now. I have had one on two of my bikes, currently running one on my Twin Cooled 2019 M8 114.
@@DKCustomProducts When I said that I two fans... I didn't realize this fan isn't for Sportster Evolution models.
@@FLHCSfan68 Generally Sportys do not need a fan to maintain optimum temps. Here is a video where we do address optimum temps for a Sportster-
ua-cam.com/video/rWOdQOtDv6A/v-deo.html
If a Sporty does need a fan, the Mighty-Mites will fit it.
You think HD would install similar Jim's standard considering price of the Baggers
They're getting there, slowly but surely.
Couple years ago my cousin and I riding out with long long traffic jam crash his H&D actually stuck up motor will not turn had to have it towed luckily next day put Marvel Mystery Oil in jugs and it cranks up
Wow! Lucky cousin!
Thanks for the test and report. Now which fan is the recommended? More research is what I will do.
Thank you, glad you found it useful.
If you go with the Love Jugs, then the Mighty Mites are better than their other options. Between the MM's and the ForceFlow, the effectiveness is a little better on the Mighty Mites, but not so much better that if you like the looks of the ForceFlow better that you would go wrong with the FF.
I personally like the Chrome MM's on my retro looking Softail, but prefer the Black FF on my Tri Glide. My Sporty runs cool enough without any fans, so do not have them on it.
@@DKCustomProducts Thanks, that was just the info I was looking for as I like the looks of the FF more. Gives some symmetry to the airfilter on the right hand side =)
@@Jan_Nicolaisen Glad to help.
Just wondering...with cooling fans blowing air over the jugs and heads to cool the engine left to right, does anyone have feedback on the additional felt heat? How's your right leg doing? DK - Really appreciate all the work you guys have put into testing and development. I'm planning to purchase a few items - after I do a leak down test to see if my trip to Arizona and back damaged my engine too much. It got awfully hot last June in Oklahoma and Texas and I really noticed the sluggish performance along with the dramatically increased felt heat through the seat.
Good to hear you are finding the videos useful, appreciate the comment and your business.
On the fan, if you wear shorts or thin pants, you may feel a little on your right leg when at a stop. However, the overall heat is less and generally folks will feel cooler with the fan.
@@DKCustomProducts does it make a difference with stage 4? I get crazy heat on my right leg after i got stage 4 upgrade.
@@freddychico3621 Yes, it will reduce temps substantially on your Stage 4. However, there are other things you can do that are less expensive, that may get you the reduction in temps that you are looking for. I generally do the free and low cost first, working my way down the list until I get to the optimum temps. Here is a link to the list- www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm
Wondering if there’s any fans that pull instead of push or if you could simply reverse the fans on the market. I feel like this would be beneficial in keeping AIT down as the fans I’ve seen blow from the horn side towards the intake side. I’ve fabbed my own breather filter kit I’m thinking I could probably make this happen too. Will report back after I record temps. Thanks for your videos and great info as always.
We have tested that (pulling instead of pushing) and did not get nearly as good results.
I agree with you on the pushing from the left side to the right side where the intake is. At slow or no speed that seems like it would make a measurable difference, above 35 mph, depending on your intake, not sure that it does.
Looking forward to seeing what you report back. 👍
@@DKCustomProducts That’s good to know. Thank you. I did read in a forum a guy who had the love jugs and simply reversed the fans inside the housing with decent results, but I feel pulling fans would definitely need to big bigger or more powerful to achieve desired results. I’ll see what I come up with and get back with some solid temp numbers. Thanks DK 🤘🏻
@@ketobeast8489 Yes, pushing is a focused stream of air (more effective) and pulling is a much less focused movement of air.
Looking forward to your report.
does it not harm the fanmotors/bearings pulling the heat over them ?
@@Ericvl2102 I wouldn’t think so as there are many fans setup for extracting heat, but I have not tried this as of yet so I can not give a definite answer as to Harley engine temps being pulled over the fans.
Great info brother! Good to know I would love to install atleast one or two fans on my 08 softail deluxe!
Thank you. Glad to read you are enjoying the videos. Yes, I think you would be very happy with the results of some extra air flowing over your Deluxe's engine.
I have a 2014 project Rushmore edition ultra limited with twin cooling as that enough or would adding Mighty Mites be beneficial?
Unfortunately the 14 and up bikes with Twin cooling run HOTTER than the fully air cooled models. You can see a couple of videos on the subject below. There are many things you can do to cool them down, you can see a report on what each of them are, and how much they cool down in the link at the bottom.
ua-cam.com/video/MF0hO-w2hz8/v-deo.html
ua-cam.com/video/6AhPqVlvE-w/v-deo.html
Report Link- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
Thanks for the great info boss 👍
No problem 👍Glad you like the video!!
Thank you for commenting! MB
It looks like this goes in the place where the horn is. Is the horn removed? I have a 2011 Street Glide 103 twin cam motor and this looks like the horn is exactly where the fan needs to be installed. Can you provide more info on this. Thank you.
Go to this link - www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
It has all the details and photos.
You will see that there is a horn built into the ForceFlow Fan housing, taking the place of the factory horn.
Great info. Thanks. Subscribed. 👍🏾
Thanks man, glad you found it useful, and we appreciate the sub.
What do you think about Love Juggs. Do they work???
The Mighty Mites talked about in this video are Love Jugs. Get them at this link- buylovejugs.com/?ap_id=dkkevin
See written report on how well they work here- www.dkcustomproducts.com/shoptalk/cat/dknews/post/MMCF/
See video report on our testing here- ua-cam.com/video/2ruppXkp2CU/v-deo.html
Hey K
Have a carb RDking 2006 running catch can,jagg slim cooler ans runnning amsoil syn.running average 212-220 at max..on HD oil temp dip stick.you were spot on with the catch can..runs cooler.never experienced trafic where i live and i plan accordingly..do you have a review on the mitymites compared to the other on you would like to put on your trike...keep up the good work.always interrested in your vid...very informative
Thank you, glad you're liking them.
Thank you for this video, I'm just wondering why haven't I heard more about these fans or better yet why aren't they put on at the factory.? !!!!!!!!!!
Anyway, first time watching and new subscriber.
The fan market has been evolving, especially over the last 14 years since HD went all EFI and really lean due to EPA requirements.
We discovered these particular fans about 5 years ago and have been well pleased with them.
There was another company making some good fans also, unfortunately they went out of business.
Regarding Harley...sometimes it is perplexing why the do and don't do certain things.
Need to get one of those. So many parts. So little cash. Dangme
Yeah, I know that feeling.
Here is a list of parts to help cool down your ride, some are no cost, others low cost, and others a bit more.
www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm
Here is a vide we did 10 Quick Tech Tips- Harley Comfort for LOW & NO $$-
ua-cam.com/video/o3T3yA9BKwE/v-deo.html
Gents. I ride a 2020 Road Glide Limited twin cooked M8. With the oil relocation, if you drop your bike on that side, are you going to hit the oil filter in the new location??
The Oil Filter is well tucked in under the passenger floorboard. You would hit your bags, bag guards if if you have them, floorboard, and fairings all before you would hit the Oil Filter.
The furthest any portion protrudes from the bike is 5.75" from the cap of where the Oil Filter is installed. You can see a picture of the cap and how well it is tucked it at the product page at this link - www.dkcustomproducts.com/cool-n-clean-oil-filter-relocation-kit-harley-2-wheel-touring-dk-cnc-ofr-2wt.htm
Please feel free to contact us with any questions;
Support@DKCustomProducts.com
662-252-8828
Thank you for commenting! MB
Hi Kevin. I'm with Rosymaydog. I just put the coil relocation kit on my 17 Slim S. Will these Mightymights work with that? Btw thank you all at DK for doing these videos. They are very helpful.
Yes, the bike in the video is a Softail with a Coil Relo and Mighty Mites. Use a coupler nut and a stud to extend the threads so that you can mount both. Here's a link to a photo - www.hdforums.com/forum/attachments/dyna-glide-models/520044d1501254051-any-early-reviews-on-the-love-jugs-mighty-mites-coil-20cover-20wards-20fans_zpsremyx0n9.jpg
This is the hardware needed:
Stainless Fender Washer
A stud of the same thread that is already on the bike (5/16-18)
A Coupling nut (5/16-18)
Here's a photo- i1088.photobucket.com/albums/i339/DKCustom/Softail%20coil%20relocation/CoilFCSHDW_zps49110ab8.jpg
@@DKCustomProducts YOU ROCK !!!!!!!! ty. I may do this over the winter. I am leaning more towards a fan assisted O.C. but what I'm thinking is doing a total OVERKILL. Buy installing an Ultracool (better than Jag imo) O.C. DK's Oil filter relocation kit and mighty-mites fans on my Slim. Still trying to decide. That's nice chunk of money. Hmmm Maybe DK can do a DK Ultracool PACKAGE.... (insert thinky guy) and include all I mentioned above. hint hint hint. lol Thanks again
Thanks for uploading this video.
Our pleasure!
Is there any way to channel air to the rear cylinder without a fan?
I am not sure what bike you have but lifting the front and rear of your Tank and adding some Cooling Deflector Wings would certainly help cool down the rear cylinder.
Here is a video to 10 Low to No Cost ways to cool down your ride- ua-cam.com/video/o3T3yA9BKwE/v-deo.html
Here is a video playlist on why and how to cool down your Twin Cam and M8 - ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
Here is a written report on why and how to cool down your bike - www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
Here is a link to the Tank Lift Product pages - www.dkcustomproducts.com/gas-tank-lift-kits-c4.htm
Here is a link to the Cooling Deflector Wings Product page - www.dkcustomproducts.com/catalogsearch/result/?q=COOLING+DEFLECTOR
Please contact us with any questions;
Support@DKCustomProducts.com
662-252-8828
Thanks for commenting! MB
@@DKCustomProducts I ride a 22 SGST with the Milwaukee 8
@@DKCustomProducts love your videos btw. I’ve only been riding for 2 years now and the information you’re giving is great stuff. I’ve watched a few of your videos and I want this bike to last.
Glad you are liking the videos! Thank you for your support! MB
Thanks for doing this series. I just got a 98 bore kit that included an upgraded oil pump with professional tuning thundermax put on my 06 SG. I have the mighty mites. Do you think it is necessary for an oil cooler?
If your oil is running more than 230 F, an oil cooler is a good idea. Here's a link to a video on optimum engine and oil temps. ua-cam.com/video/rWOdQOtDv6A/v-deo.html
Here's a link to what we do to keep the engines and oil in the optimum temps- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
@@DKCustomProductsHuge thank you! I am binge watching your videos, including your suggested video. My build is almost finished; I hope to get it back this week. I am still unclear how to know the oil temp. I think in another video you said oil temp should be close to the engine temp with twin cams ..correct?
@@shavenonthedarkside6708 Good to hear you are liking the videos and finding them useful.
A dipstick oil temp gauge is the easiest way to know the oil temp.
Yes, if a Twin Cam, once it has been ridden for around an hour, will have the oil come within a few degrees as the temp on the sensor in the cylinder head.
Highest temps you want to see on a Twin Cam is 230 F on the cylinder head temp sensor and 230 F on the oil.
I have a Harley Touring twin cam Milwakee 8.
I cant stand the heat?
my dealer put on a setting to stop rear cyclinder when i am in traffic.
still hot!
dont have Fans what should i use??
FLHTK Unlimited Touring.
Cant RIDE In Summer.
Any Suggestions??
Not sure what bike you have, there are Touring Twin Cams, and Touring Milwaukee-8's. But the same holds true for both...They run very hot, too hot for most folks.
There is no one big thing you can do to reduce the heat to a comfortable level, but there are quite a few little things you can do, that will add up to a lot. You can see a written report at the link below, you can also see a video series at another link below.
For the fan I would use the one at the link listed last below.
www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
touring twin cams 107 milwakee 8
should i get mighty mite?
@@louiedee279 JIMS at this link would be better. www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
In stop and go traffic does the hot air blow on your right leg
If you wear shorts, you will definitely feel it.
Jean, some folks feel it, some don't. One thing is for sure, there is far less heat radiating out to the legs, because the engine is much cooler.
are the mighty mites compatible with the coil relocation kit?
Yes, the bike in the video is a Softail with a Coil Relo and Mighty Mites. Use a coupler nut and a stud to extend the threads so that you can mount both. Here's a link to a photo - www.hdforums.com/forum/attachments/dyna-glide-models/520044d1501254051-any-early-reviews-on-the-love-jugs-mighty-mites-coil-20cover-20wards-20fans_zpsremyx0n9.jpg
This is the hardware needed:
Stainless Fender Washer
A stud of the same thread that is already on the bike (5/16-18)
A Coupling nut (5/16-18)
Here's a photo- i1088.photobucket.com/albums/i339/DKCustom/Softail%20coil%20relocation/CoilFCSHDW_zps49110ab8.jpg
Good video thanks for sharing
Are the mighty mites better then love jugs in your opinion ... ??
Wish is better between the 2 you spoke of on your video?
Have a 2014 flhtcu .. air cooled .. no water in heads !!
The Love Jugs Mighty Mites do cool better than the larger Love Jugs. Higher RPM, more focused air flow, results in better cooling.
Hi 2021 FLHTK twin cooled, would you go with mighty mites or Jim's fan? Thanks
My sweet spot is 55-65 mph bike runs the coolest according to power vision
Yes, that is close to my experience also. Moving fast enough for good air flow, but not so fast that the engine is generating more heat than the wind can overcome. 40-55 mph seems to be the sweet spot for running the coolest.
What model Jim's fan would I need for my '17 dyna fxdls because the horn is in the front, therefore not needed in the fan set up..Also would it be a smaller unit than the one with the horn relocation, or are they all pretty much the same size?
TIA👍 Also thanks for all the info you guys are putting out in these vids..The level of information you include is second to none👌
Good to hear you are liking the vids. 👍 The ForceFlow fans only come in one size, and they do have a horn in there. You do not need to hook it up if you don't want to...OR, you could hook it up and have both horns blow. www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
@@DKCustomProducts So are they different for the twin cams then the Milwaukee 8s because on your site they are listed different when choosing, or is it just different mounting hardware?
@@MEGLADAD The difference between the ForceFlow for the Twin Cam and M8 is in the mounting hardware.
@@DKCustomProducts Thanks for your replies👍
We're u get one of those at.
Look at the following two links-
www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
buylovejugs.com/?ap_id=DKKevin
Thanks For The Info 👍
👍
What are my good options for reading the oil temp on my 2017 Road King? HD's oil temp dipstick seems to have a lot of poor reviews.
Yeah, the HD LCD temp dipsticks are hit and miss....some last for years, others not even a year. They have only a 1 year warranty. We are testing out two analog oil temp dipsticks from JesCustoms...cannot say how well they do over the long haul, one is 4 months old and the other is about 1.5 years old.
Will the Force Flow work on my 2013 Tri-Glide with the 103? I didn't see an option for it on the website.
Jims has been out of stock of the TC models for a while now.
We are hoping that they will be coming back into stock soon.
You can email us at Support@DKCustomProducts.com and we can put you on a list to let you know when they are back in stock!
Thanks for commenting!😎👍
When will people accept the simple fact that an engine with one cylinder right behind the other is unsuitable for air cooling?
Well, it's been over 100 years, so not going to hold my breath. :)
Will they work on my 22 streetglide special
The Force Flow Fan will work great on your '22 Street Glide. You can see the link to them here- www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
Ok thank youuuu
@@MrDjh66 you are welcome!
🤙🤙🤙🤙🤙🤙🤙
Great job!
Thanks! 👍
Cool video.
Come to las vegas mid summer, or Phoenix and say this.
Additionally with modern day epa standards and performance numbers from just other bikes it will most certainly help.
I give it 2-3 more engine evolutions before Harley WILL be water cooled. Honestly we're just waiting for the boomer base to die off, that way Harley can finally innovate
They have been trying...Vrod, Streets, now the Pan America and the Sportster S. Oh, and also the Twin Cooled.
We will see what happens!
@@DKCustomProducts I'm perfectly fine with having both for now. I'd love to keep seeing them innovate, while retaining their bread and butter.
No reason they can't have both. And considering the Sportster isn't aimed at the older generation anyways then I see no problem with it getting the change.
That said yeah the heat is awful down here, gonna do an oil cooler and the fan at some point and hope it works
Are the fans DIY friendly?
Yes, the include step by step instructions and only basic tools. Pretty easy job.
Kevin are the mighty mites better than the Jim’s fan ?
They are good for about 5 degrees cooler...not much, but a little. The Mighty Mites are a bit less expensive too. However, I like the looks of the ForceFlow better, and with all the other cooling mods I have, this tilts toward the ForceFlow on my Touring model. On the Softail in this video, I do like the MM's better for the look.
@@DKCustomProducts Looks like the mighty mites blow on each cyl head separetly. I too like the look of Jims forceflow better. Which installation is easier and how does the forceflow hold up to vibration?
@@bigdog3495 Yes, there is a strong focused flow of air from each fan directly toward the spark plug area on each cylinder. I would say the installations are about the same, maybe a tad easier with the ForceFlow, since there is no reinstallation of the cowbell, AND no monkeying around trying to get it centered like on the MM's.
As far as vibration, the FF vibrates less...it has two mounting points rather than just one. We've never had a FF fail (but that does not mean that failure is impossible), we have only had one MM fail, and that was on a Stage iV bike with aggressive cams that had a lot of vibration.
Do you still stand by the idea that the Might Mites are more effective than the full size Cool Master? I put an Ultracool oil cooler and considering the Love Jugs but don't understand how a smaller fan can cool more or more effectively.
The testing shows that the smaller ones are more effective. They spin faster is the probable reason they cool better. Unfortunately there was a big recall on them...thousands were made wrong. They have been in and out of stock for months. There are some available right now at this link- buylovejugs.com/?ap_id=DKKevin
If you prefer a different look, the fans at the following link cool almost as well as the Mighty Mites and very close to the same as the Cool Master. www.dkcustomproducts.com/jims-force-flow-fan-cools-twin-cam-engine.htm
@@DKCustomProducts Wow, thank you for that information. Are the MM on sale at your link unaffected products? Do you know if LJ has recalled all the incorrect ones? I keep going back and forth on the MM vs the Cool Master. The black Cool Master looks to be a newer version than their original fans. I see the comparison of the two and it seems like they do perform better overall, the big fans have a slight advantage in stop and go traffic which is impossible to duplicate. Believe me if I can save $100 and have the same effect I would much rather do that lol. I think coupling with the fan assisted oil cooler it probably won't matter much anyway.
@@sethg8501 Yes, all the affected ones were recalled many months ago...none of them are in circulation. But then it took quite awhile to catch up with demand over the next few batches because they lost all that time.
The MM definitely cool better. None of the defective ones are for sale. It was a bad weld on the stem.
@@DKCustomProducts awesome, thank you so much for that info! I think I know which way I will be going now. And I will definitely be using your link to purchase. Along with the frame mount kit and I have been told that is a must have with these. I used the vibration master on the last set I installed and it worked ok. I hope the Frame Mount Kit is a little more stable.
@@sethg8501 Thanks man, appreciate that. I believe you will be well pleased with them.
I let my Mighty Mites run for a couple minutes after engine shut down always
Yeah Jack, I do too. Good practice. 👍
I just had mine set on thermostat, i kept forgetting to turn them on. And fyi they used to be mzde by a veteran in his garage until he sold them to love jugs
Why does Jim’s force flow fan have to look like an AMF air cleaner ???
I am not sure why they designed it to look like it does, but it works very well! Thanks for commenting! MB
Bottom line at the end of the day that extended warranty is the most important thing on these guys along with a good oil temp gauge.
True that! 👍😎👍
Do I need a fan on a Evo?
We have done no heat studies on Evo's. If it is running hotter than optimum temps, a fan would be useful.
I am sorry we do not have more info for you.
Thanks for watching our vids!
So they are hotter at 70 than stop n go traffic?
Yes. There is much more work taking place at moving the bike down the road at 70 mph.
Over time, in STOPPED traffic (not stop n go) you may approach the temps seen at 70 mph. But if you are stopped for 15 minutes or more, shut if off and it won't get as hot as running down the road at 70 mph.
Here is another video with numbers showing heat at different speeds and in stop n go.
ua-cam.com/video/6AhPqVlvE-w/v-deo.html
love yalls videos. But can you use a mic. Can barely hear you.
I am sorry for the quality of the sound in this video it was three years ago. We have since gotten better mics and video equipment. Thank you for commenting! MB
Make it flow!
Kevin, thanks so much for this series; I'm learning a lot and appreciate your sharing what you have found out. I really like the look of the Jim's Force Flow fan, and was looking at your web site for listings and info. Do I have it right that I need an additional coil relocation kit to mount the Jim's fan on a 2018 Sport Glide? Thanks again.
Really happy to hear that you are finding the videos useful.
On the M8 Softails, the Force Flow needs this coil relocation
***M8 SOFTAIL FITMENT NOTICE- In order to install the Forceflow on the M8 Softails, it is necessary to re-locate the coil. This Kit includes a turnkey coil relocation system to move the coil to the front of the motorcycle inconspicuously tucked underneath the neck of the bike, in-between the frame tubes.
When ordering at the following link, it asks what bike you have, you would choose Softail Milwaukee-Eight and it comes with this coil relo.
Hate to say it but Harley but the 2 cylinder for Harley is going to disappear eventually. Despite what the old school think or say. The 4 or 6 cylinder liquid cool is coming.
There is no telling the changes that will come in the future that is for sure!
Please somebody help me understand. Harley is in business of producing bikes for over a century. Why doesn’t motorcycle that cost as much as a car have air cooler fan installed right out of factory. It might not be as good of machine as it is portrayed.
Good question. Possible answers...they want you to buy more stuff after the purchase of the bike. They are not needed for the average rider, since the average rider only does around 3000 miles a year, and the warranty is only for 2 years. 6000 miles will not require warranty work for heat damage.
Here is one of the things HD is doing-
ua-cam.com/video/mzzc-ydotOQ/v-deo.html
We'll see how that works out.
Hey sir love your videos. You have helped me and my father decide on the smaller fans from love jugs. We were wondering whether to get an oil cooler as well after the fans?
He has a TC 88 and I have a sporster 1200 2004
I always like to do one mod at a time. After adding the fans, if you still see oil temps going above 230 F , then I would add an oil cooler.
@@DKCustomProducts thank you so much for your response. We've been watching all your videos they are just so great! Planning a roadtrip starting in North Carolina where we live then hitting the open road no cell phone, hunting and fishing for food, sleeping in tents, the best way, and you're videos are helping us immensely in prepping. Thanks for taking the time to make these videos they are absolute gold!
@Joogullae Thank you for the comment! Very glad to hear that the videos are helpful. Sounds like some fun times. Live Free, Ride Free & Enjoy your Roadtrip!
Doesn't the fan block a lot of airflow by themselves especially the rear
Never done any measurements of that. If it is above 40* ambient I am always running the fans, and it is cooler, so there is more air on both cylinders with the fans than without.
It would be smart to make every Harley water cooled
That is the direction they appear to be going.
Having two cylinder behind each other has never been good V twins should be transverse and not hidden behind the front forks and mudguard. Water cooling only allows cooling to be moved to a better place for airflow.
Thanks for the comment. Since HD's are the way they are, good thing that there are fans to help compensate. 👍
Air cooling can be good if well engineered, but water cooling is better. Period.
From a function aspect I agree. But Harley is in a Catch-22. We talk about it in this video- ua-cam.com/video/N0kLaVQhbW4/v-deo.html
I own a Twin Cam 88 and a 75 Ironhead. The Ironhead runs so much cooler than the 88. Why? Well let’s tell the truth instead of looking for excuses. Big inch Harleys are woefully underfinned on the heads and cylinders,; yes rears are hotter but that has always been the case; it’s nothing new. Just accept the fact that they are in engineering terms and capacity outside of their comfort zone by a country mile. They should never have gone beyond 74 cu. Fitting fans etc is just a bandaid for a broken limb. The quicker Harley learn that the design is bust in these idiotic capacities the better; the customer always pays.
Very interesting perspective. HD is in a catch-22, that is for sure.
All Harley would have to do is put bigger fins on the rear cylinder
You think that would be enough? How much bigger would they need to be? We've never tested anything like that to know what the results would be in cooling or looks.
I want to run fans. But at over $400, just not worth it in a monetary sense.
Yeah, we recommend doing one cooling mod at a time...then when you get your temps to the optimum, no more is needed. Fans are one of the last things to do, only if you need that extra cooling. I regularly run in 90-100 degree temps, with a heavy load and/or at speed, so I need them to get my temps to the optimum level.
👍🏻
👍👍
Bangkok rush hour traffic will get it cooking
I am sure a Harley in Bangkok traffic is an interesting site to see. Thanks for commenting! -DS
Like your video's but you guys could off summed this up in less thrn 100 video's lol
Glad you're liking the videos. 👍
@@DKCustomProducts my add just kicks in wish i could of watched allnof them
@@jamesc1270 Understood. We have a list of the video series right here- ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
😎😎😎
OMG! Some of us out here are poor! Do you think we can shit dollar bills?
Nope, don't know anyone that can do that. 😂
We are quite a bit less expensive than Harley branded parts...but running these newer Harley's (2007+) can get quite expensive, no doubt.
Harley is so far behind. Why didn't they go with water cooling years ago? Oh ya, now they finally replaced the girls bike (sportster) with water cooled version finally after all these years. Too little - too late. My Hondas are water cooled and never have over heating problems like Harleys do. While riding to Sturgis across South Dakota, Harleys had to slow down because they were over heating in the 100 degree heat and couldn't keep up to my 1100 Honda Shadow. A $30,000 bike that can't keep up with a $4000 used Honda? WTF?
They are between a rock and a hard spot. We answer your very question in the video at this link-
ua-cam.com/video/N0kLaVQhbW4/v-deo.html
At least that new Harley is liquid cooled, that's a lot better, now just make a 90 degree v twin and all the nonsense will go away
Thanks for your comment.
We will see how the Rev Max is accepted.
Gotta remember, there are millions of us that like the Harley with it's current design.
Different Strokes for Different Folks.
Not for that much money 🤣🤣🤣
Yeah, good fans are not cheap. There are many less expensive things you can do to cool down your ride. Some are even free, see the list here- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
I'll keep my liquid cooled, thanks anyway.
Someday Harley will have a true liquid cooled, until then, us Harley Riders will have to deal.
You don't drive a VW beetle any more so why ride an old bike. There are better options available now days. Stop putting lipstick on a pig.
Ah, but some folks like to drive a VW beetle, and LOTS of folks LIKE to ride a Harley.
Can the Jim’s and Mighty-Mite can be hooked up to a 131 M8 and is the 132 considered a CVO or NON CVO.
Speaking of 131 crate engine not 131 kit but how about on both?
Don't know about the Force Flow on a 131, but the Mighty Mites do fit on the 131. I've seen it.
Call or email the shop and they can check on the Force Flow for you.
I am not sure there is a difference between the crate and the kit.
On my M8 I run riding @300-325 and that’s riding stop and go up to 350-369 for stop and go detours
If that is your ET, that is Much Too Hot. You may find this video useful where we talk about Optimum Operating Temps. Starting at the 6:00 mark is where we talk about the M8
ua-cam.com/video/rWOdQOtDv6A/v-deo.html
BTW, what most dealers say and what Harley Corporate actually puts in writing are vastly different. What Harley puts in writing, in the manual, is that Normal Operating Temperature is 230* F.
@@DKCustomProducts that’s what I’m reading on the power vision ET
@@Heavy69Metal Yeah, way too hot for the longevity and performance of the engine.
Are theses the mighty-mite or Jim’s fan your showing dropping down to 214 and 222? And is this for M8 107 114 117 or 131
The Force Flow Fan has been Tested on M8 107 and M8 114 Models, as well as Twin Cam 103 models.
It is not the only thing used to drop the temps, but is a very powerful part of our cooling strategy.
You can see a breakdown of how much each component drops the temperature at the link below.
These fan are easily good for a 50* drop in engine temperature in stop n go traffic on a hot day. Even at highway speeds they are good for a 10-15* drop in temperature.
www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm
How long will these fans last running 100% of the time?
All depends...engines that vibrate more, with an aggressive cam, on average will wear out faster. Engines that have had no other heat strategies employed, on average will wear out faster.
I have heard of the fan wearing out in 6 months, but the vast majority are still running fine after many years.
I have one that has been on a Street Glide, with mild cams, and is working fine 6 years and over 50k miles later.