Is that the ET reading? The one the ECM uses? Or is that cylinder head temperature? If it is the ET, that is too hot. If it is ET the engine will keep running, it will have experienced a gradual reduction in power, as the cylinders go out of round and the valve seats no longer seal well. Normally this is so gradual that most folks never notice the reduction. But a dyno will see it, as will a leak-down test. See this video on leak down tests- ua-cam.com/video/2YrM7f321JE/v-deo.html What is your oil temp running?
I'm glad you mentioned the oil temperature in Sportster. I have a temperature gauge in my oil tank dipstick which is accurate. With the 230 degree F target for maximum heat in the oil, I feel good because my oil usually runs between about 200 degrees on secondary roads and occasionally up to 220 degrees on the interstate in mid-summer. Thanks for the info. My 2005 XL883 has never burned, dripped or leaked any oil and I use Amsoil 20W/50 in both holes with changes @ 2500 mile intervals. So far, so good.
Got a sporty , great info on temp, Got the V and H FP3 , Dk high performance oil filter , Air filter , straight exhaust , Wish they had a page with the temps.
Yeah, very few Sportys need help running at ideal temps. I have an oil filter relo on one of mine, not for cooling as much as to make oil changes much easier. :)
LOVE THESE VIDS! THE SAME THING YOU ARE SAYING IS THE SAME THINGS I HAVE BEEN COMPLAING TO THE STEALERSHIP AND PERFORMANCE PARTS ABOUT ON MY M8 CONCERNING RUNNING HOT. I LIVE IN SOUTH ALABAMA, RIDE A 17 ROAD GLIDE SPECIAL. ON THE INTERSTATE CRUISING AT 70 TO 75 MY BIKES EXTERNAL TEMPS REACH 300. WHEN I EXIT THE INTERSTATE AND COE TO THE FIRST RED LIGHT AT IDLE MY ENGINE GOES INTO THE EITMS MODE... THATS NOT NORMAL BUT THESE MOTHER HUMPERS TELL ME IT IS!!!
Unfortunately it is normal....BUT, it is NOT right at all. After I had an engine rebuilt under warranty for running "normally" too hot, I decided to figure out how to cool these 2007 & later Harley's down. Glad you are enjoying the video series and hope you get yours running how you want.
Thanks I ride an 2000 1200 & oil & engine or head tempts have always worried me in the HOT Georgia Sun with summer time tempts well into the upper 90 & low 100s so now I know my bike while seems hot is little under the extreams you mentioned ..Thanks for all yalls testing & knowledge yall share with the Harley Ridding Public Ill Keep watching & sharing with my Harley friends
Yes, you seem in a good safe range. You can cool it down and gain a bit more power and less radiated heat...but at the temps you mentioned in your other post, you don't need to be concerned about running so hot you're causing damage. Ride Free! 👍
That isn't too bad for an M8, but anything over 260° on an M8 starts causing sluggishness in power, and damage can start occurring to the oil and causes accelerated engine wear. Here is a video playlist on why and how to cool down your bike that you may find useful/interesting - ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html Here are to links to the two page written report we've made on the subject as well - www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm and www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm Please feel free to contact us with any questions; Support@DKCustomProducts.com 662-252-8828 Thank you for commenting! MB
i run 20/60 oil redline and i stead run 280 plus. Put pipe thermo wrap on pipe that is helping. just ordered oil filter relocation. then going to order external oil cooler. With heat in texas around DFW area ive seen my bike run a steady 315 before. i have 17 Breakout h
You are on your way to getting it cooled down. Nice work. We appreciate your business, and those two additions are going to cool it down even more. Here's a checklist we've developed over the years, and what I use on every new to me bike that I get. www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
I'll have to check my ET with my FP3 today. Running your external breather bolts, high flow intake from K&N and full system pipe. Hopefully im cooler than that 260 on my M8
All depends on which M8 you have, what else you've done to the bike, what your ambient temps are, and how far your riding at one time. If you've only done what you've listed, and the ambient temps are above 60, and you're riding for 30 minutes or more at a time, you are most likely well above 260 degrees ET.
@@MeathedMoto What bike do you have? 260 is a good target, 275 is still not bad. 290 is where problems start happening. If you have an oil temp gauge, check it out next time you're on a 1 hour or more ride and see what it is at, along with your ET.
Yes, Harley has done an exceptionally good job on the M8's at protecting the rider from feeling the heat. But the M8's run just as hot as the Twin Cams, and have many of the same problems from the excessive heat that the engines components are subjected to. See the series on this subject here- ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
We have not done a video on this. Might be an interesting one. Will be sort of hard since there is no easy formula. Ideal RPM shift point varies, almost infinitely, on how hard one is accelerating. May be why you are seeing so much varied info. One thing is sure, you don't want to lug it, that will generate excessive heat. But, again, that comes back to ideal shift points. Yeah, good question. Might be a really good video. 👍
My '12 Twin Cam has a stage 1 , Cobra Power Port duals header, Rush mufflers, performance machine jet air cleaner, and power vision tune from Fuel Moto. Today in Cleveland its humid with an air temperature of roughly 82 degrees. On my way home from work today, in city stop n go, my powervision ET hit 275! I thought adding this cobra header id have a cooler running TwinCam????
Hi Anthony, The exhaust you have is having reversion, which is not good for heat. The air cleaner you have is feeding hot, oily, oxygen depleted air back into the engine, also not good for heat. Here is a video on what you can do to mod your air cleaner to run the bike cooler, AND, with more power- ua-cam.com/video/EfDeFZblMck/v-deo.html Here is a video talking about exhaust, and an easy fix to them to help the bike run cooler, and with more power- ua-cam.com/video/nB0XDQVjH9Y/v-deo.html Here is a link to a report on Why & How to Cool your engine down- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
Thank you for the info!! Needed this! My 07 RG (96 inch twin cam) with Force winder intake, Vance and Hines 2 into 1, TMan 555tq cams, Pro Vision Tuner runs anywhere from 180 - 250 according to my ET gauge on the tuner. At first I was shocked by this but seems to be normal. I use full synthetic Lucas of course and change very regularly. Makes sense that this runs a little hotter with the big cams and more than enough power lol. Keep in mind this is also is dry, hot Las Vegas! Rode the other day for over 3 hours at about 65 degrees at 80mph with a passenger and ET didn't go over 190. In the 110F days out here seen it at 265+ ET. That's when I don't ride lol. But for the mods I have and Temps I've seen. 180 - 250 could be normal. Still freaks me out though lol
Yeah, best not to go over 230* F, but the temp range you are running is much better than most. We have a video coming out in the next month or so showing how radically the power drops when the engines get too hot.
@@DKCustomProducts yeah I need to look into some modifications like an oil cooler and fans. I know there are some well known kits. Can't wait to see what other info you give us! Really appreciate it!
@@tonytwotime783 Glad you're digging the videos. On my 05 Road King and 09 Ultra, I ran two oil coolers. One down in the factory position, but with a fan. See link below. Then I also ran one on the downtube. It is in another link below...along with a link to a video on oil coolers. www.dkcustomproducts.com/fan-assisted-lowmount-oil-cooler-system-harley-touring-models-dk-j-751-fp2300.htm www.dkcustomproducts.com/auxiliary-oil-cooler-for-all-harley-twin-cam-w-o-lowers-dk-sec-oc-tc.htm ua-cam.com/video/M9ta84TmROc/v-deo.html
My engine oil temp usually runs 195 /210. (My engine, exhaust, and tune are modified). If I see my oil temp hit 225/230 I pull over and let my engine cool off for 15 minutes or more. My wife thinks I'm nuts but according to this video it's justified. I'm lucky because I rarely hit traffic or stop lights riding in New Hampshire and Maine. I feel bad for the riders that can not avoid this condition.
Not sure which bike you have, but having the oil run 195/210 is great. 225-230 is about as high as you want to see it. The other factor is what is the actual metal in the engine. If you have a lot of cooling for your oil, engine could still be hotter than ideal. But it sounds like you have a good handle on things. Thanks for the comment.
@@DKCustomProducts 2013 FLHTK, Use REDLINE products in all three holes. I think my Tune, cams (S&S551) exhaust (S&S Power Tune Duals and SPO mufflers), and S&S air filter. The bike was a heat monster stock and ran horribly until the mods in my opinion. It now runs as it should have from the day of purchase.
Free flowing exhaust slip-ons are a very important factor in cooling the engine down. The stock exhaust mufflers (slip-ons) are restrictive, resulting in the engine fighting against itself. In doing that it generates heat with no resultant forward movement. By removing this restriction, you are allowing a free flow of exhaust exiting the engine, which plays an important role in keeping the engine cool. The stock headers on Harley’s are very respectable, and are not restrictive. Replacing them will not have a significant benefit in lowering engine temperature. If your Catalytic Converter is in your headers (all Touring & Trike models) you can remove it, or replace the headers for a reduction in Felt heat from the exhaust. Here is a written report of exhaust that you may find interesting - www.dkcustomproducts.com/harley-exhaust-myths-and-facts.htm Feel free to contact us with any questions; Support@DKCusotmProducts.com 662-252-8828 Thank you for commenting! MB
I have spoken with you guys a few times on the phone and via fb messenger, one thing I haven’t addressed with you guys directly is temp numbers on my 19 sg 107. Im running a s&s 475G, arlen ness velocity 65 and fuel moto jackpot street outlaw 2/1 tuned with a pv. I have added an a1 cycles/m3 ventilator to reduce crank pressure, the dk deluxe tank lift, and cooling deflector wings as well as an ultra cool side mount fan assisted oil cooler. My et ranges between 270-295 currently (i installed the ultra cool yesterday 7/18/20) and head temp ranges from 290-315. The hotter temps are of course on hotter days. I rip my bike through the rpm range frequently, im not the kindest rider lol. Are these temps in an acceptable tolerance? I still have a few more things i want to do including adding the dk oil filter relo kit, a tmax oil cooler fan for the bottom cooler and love jug fans for the heads. The reason behind the tmax fan is because i live in a very tourist hit area so i know i need the extra wind during the summer. The reason im asking after you just made this awesome video is because even when i see alarming temps on my pv, my motor doesnt miss a beat and has all the power it is built to have, the only effects i feel are a little sluggishness in the first 5 ft coming from a dead stop almost as if it hiccups and then rolls out.
You are right on the edge on the ET, which is probably why you feel that bit of sluggishness on the take off. With the other things you're talking about (oil cooler fan & Filter Relo) you'll probably get off the edge. Couple of notes- If you have not done an EBS (see this link- www.dkcustomproducts.com/all-twin-cam-engines-c76-192.htm ) you will get better power, lower temps, prolonged engine longevity, and tune stability by installing one. We only look at the ET on the power vision, the head temps vary too much to be a reliable indicator of overall heat. What are your oil temps running? That is a very important indicator on overall health and functioning.
DKCustomProducts i made my own ebs meant to mention that as well, its not the prettiest setup but it is working, used the stock headbolts and rubber boots instead of the arlen ness headbolts and ran fittings and fuel line to the back of the bike. As for oil temps at the moment im not sure, its cool enough where my ultra cool fan hasn’t turned on yet so according to them that has to be sub 230 or right at it when et is around 290
Will it hurt to run flow fans and an electric oil cooler? I ride in the Ozarks a lot , and my electric oil cooler seems to stay on more than I would think it needs to. It kicks on at 230 degrees.
That shouldn't hurt anything as the Fan and the oil cooler should not come on until your bike is at about 230 degrees. I am not sure what bike you have, but you may find this video informative/helpful if your bike is running hot - ua-cam.com/video/CAcF0T-Cs3E/v-deo.html Please feel free to contact us with any questions; Support@DKCustomProducts.com 662-252-8828 Thank you for commenting! MB
I didnt know my power vision had a engine temp and a engine head temp both to chose to monitor on my 20 or 21 m8s.. But ive made a few mods, and my oil temp (via harley oil dipstick) at 98 degree outside temp my oil makes it up to 215 on hwy driving..and down to 205 stop and go traffic, however my Power vision (by one selected) runs 300-325 inthe 98 degree hwy riding.. Either its not there, or i can not find head temp (only ET Temp) with my option selected, but what i am measuring in no way could ever stay below 230 degree. Edit: I found the Head Temp selection under Advance options selections, but I also noticed it reads about 20 degrees above reality while sitting cold in the garage..
Those are great oil temps! My guess is you have M8 Softails, or Touring models with no lower fairings. Regarding your Power Vision, the should be an "ET" gauge. The CHT gauge is worthless for monitoring engine temps...it is an algorithmically derived number that changes quite a bit, and is not reflective of actual engine temperature. Here is a link to a video showing the ET displayed in the middle left of the screen. ua-cam.com/video/5OTSwYFPABE/v-deo.html
@@DKCustomProducts I have a Road King , and my Street Glide does have lower fairings (I always leave the vents fully open) and 20mm lift on the front of the tank, stage 2 Wood's cam, S&S oil pump and cam plate, added fan to oil cooler (same for the road king engine mods) , and.yea that ET temp was climbing on extended 65+mph riding when riding in 100 degree weather..it seem top top out below 330,. I suspect oil temp would have been 220 at that same moment if I was able to observe it.
@@ut1004bp Yeah, those are really hot temps for the ET. Something is still awry with your builds that they are building that much heat, especially at 65 mph. You can see what happens at the 270 F mark in this video- ua-cam.com/video/5PxJ8PvcVtc/v-deo.html
@@DKCustomProducts Yes I can see the curved shape might aid in some air flow as opposed to a flat crash bar lower set would..I think I've responded last year to your test of the above mentioned.. but To create more funneled air flow, I've rotated my horn housing forward and remounting to be center of the two cylinders, rotated the horn backwards to prevent water intake, and I believe it will be another no-cost heat reduction solution for the rear cylinder (will get it hottest at 65+ mph on very hot days) as there needs to be more air flow for that rear at those occasions, I haven't tested this mod yet.
What tool do I need to check the oil and engine temp on a 2020 Trike Ultra? Thank you for all the videos, I am watching all of them for educational purposes...
We here at DK use the oil temp gauge dip stick at this link - jescustomaccents.com/products-1/ols/search?keywords=dip%20stick&sortOption=descend_by_match The Power Vision is a great tool to use for tuning and monitoring your engine temp. You can see it at this link - www.dkcustomproducts.com/dynojet-power-vision-flash-tuner-w-auto-tune-dk-pv-cmp-pkg.htm Please feel free to contact us with any questions; Support@DKCustomProducts.com 662-252-8828 Thank you for commenting! MB
Go to this link- www.dkcustomproducts.com/gas-tank-lift-kits-c4.htm Feel free to email or call with any questions: Support@DKCustomProducts.com 662-252-8828
Every 2007 and later Twin Cam we've looked at have the heat sensor at the rear of the front cylinder. The M8's are at the front of the rear cylinder. The schematics in this video show what is said above, but you can go online and look at the schematics for any year and model bike and see where they are located.
Just put a power vision on my 21 Road Glide special. My ET got up to 334 degrees while running down the interstate. I'm running amsoil. I have your tank lift kit installed. I found no loss of power. The bike runs great. And just normal running at under 70mph it will run around 280. What could be my issue?
That is far too hot. Here is a video we just released on a common sense approach to cooling the engine down to the optimum operating temperatures. ua-cam.com/video/CAcF0T-Cs3E/v-deo.html Some bikes will run for their lifetime with damage caused by excessive heat, others, not so much. Here is a video on that subject- ua-cam.com/video/uyryiq6BzQY/v-deo.html Here's another one you may find interesting- ua-cam.com/video/2o9k__6MV6Q/v-deo.html A loss of power due to crossing the 270* mark will not necessarily be felt. It will if you are full throttle, you will see it on the dyno, but is is not something one would necessarily feel in normal riding. Always feel free to email or call with any questions: Support@DKCustomProducts.com 662-252-8828 KP
An aftermarket oil cooler is a good step in cooling down your bike. There are many other things you can do to cool it down, there is a link to a written report where they are all outlined, with temp drop results. Here is a video that is very pertinent to your Twin Cooled bike, illustrating why an oil cooler is important on the Twin Cooled Bikes- ua-cam.com/video/6AhPqVlvE-w/v-deo.html Here is a link to the oil coolers we offer and use- www.dkcustomproducts.com/oil-coolers-c134.htm Here is a link to a written report on how and why to cool down your Twin Cam part 1 - www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm Part 2 of the report - www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm Please feel free to contact us with any questions you might have; Support@DKCustomProducts.com 662-252-8828 Thank you for commenting! 👍😎👍
I know the "Engine Temp" on FP-3 and FP-4 is supposed to be equal to Power Vision indication, have you seen that to be true? I have the FP3 on my dual cool 15 Ultra and it running at 200 on the freeway and up to 225 in traffic and My 2010 Dyna with the FP-4 runs 225 to 235 or so on highway and hits 250+ in traffic. South Florida 90 degree days... Just wondering if PV and FP indicate the same.
Those are some good temp readings you are getting. On the Power Vision the one you want is ET, on the FP3 and FP4, I believe the heat sensor embedded in the head is displayed as F At 250F on the Twin Cam you are a bit high...you don't want to see it go over 230 F. Here is a video of low and no cost ways to get it a bit lower- ua-cam.com/video/o3T3yA9BKwE/v-deo.html Always feel free to email or call with any questions. We appreciate your business, and I believe you will be well pleased with your EBS. Support@DKCustomProducts.com 662-252-8828
My 1200 Custom (with a Stage 1) is getting up around 400°... guess I better do the auto tune. I'm betting it's running lean. That hasn't even been in real hot weather.
What year is your Sporty? 400 F in weather that is not real hot is a little unusual for a Sporty. Tune first, still too hot, then possibly an oil cooler and/or a coil relocation.
@@DKCustomProducts I removed the air filter cover and did the autotune on the FP4. That seemed to bring it down to around 360-370. Also have an oil cooler on the way but the above steps definitely seemed to help! Thanks!
@@DKCustomProducts to answer your question, it's a 2014. Had about 2400 miles on it when I got it about 2 months ago. Put over 1k on it so far. But the autotune and taking the cover off the air cleaner seemed to help!
I have an oil temp dipstick.What would be the target oil temp on a 1997 Sportster Hugger?I thank you in advance for your answer. Keep up the excellent work and videos,DK Custom Products.
You 97 Sporty is the same as what is talked about in this video where we start talking about Sportys at the 1:17 mark. 320-375 on the heat sensor in the top of the rear cylinder, and 230 max on the oil temp. 👍
@@DKCustomProducts Thanks DK Custom Products,that's good to know.I live in the Phoenix,AZ. area and even during the summer,the oil temp doesn't see 230 degrees.I am lucky to see 200 degrees.This may have to do with how rich the main jet is on the carb. Though,it is not so rich as to be blowing a lot of raw fuel out the pipes,but i need it a bit rich for the highway,which i set the bike up for. It's a balancing act. Now i need to do something to get clean air to the rear cylinder.I find because of cost,those forced air fans are out of the question. I've been trying to find a way to scoop and direct air to that cylinder,but really can't find a place to anchor the scoops.Any help will be appreciated.
@@tracyjones6284 Sounds like you are doing everything right. It helps that it is a carbed bike, and made before HD started getting hammered hard by the EPA on restrictions. We have looked at making a scoop, like they used on the shovels. You can see an image of what I am talking about at the link below. You may be able to grab one and make it work for you. cdn.shopify.com/s/files/1/0323/0430/0171/products/42-1010c_2048x.jpg?v=1587744886
We look at both, but if I had to choose which one is more important...that is the heat sensor in the cylinder head. Both the Power Vision and the FP4 can display that for you.
@@DKCustomProducts Thanks! If it ever warms up here in Mn I think I'll plug in my PV and see what the temp tells me. I would still like to have a dip stick that reads oil temp.
Yes, it is useful to have both. Once we have a bike dialed in to the optimum temps, we rarely look at them. But it is good to have them to get your bike where it is happiest.
230 is the normal operating temp! Here is a full video list of why and how to cool down your TC and M8 that you may find useful/interesting - ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html Thanks for commenting! MB
How does one get “our” “ET” On a Twin Cam? (2016 Road King) Do I have to stop at a Harley Shop after riding for an 2-3 hours in 98 degree temperature in Houston area? which I do recently here lately. I have a heat gun that I shoot at (top of the engine) when pulled in my garage and it reads 320-340 degrees. Where can I buy and decent oil cooler fan & is that gonna bring that temperature down enough? It’s 99 today and my wife will ride for an hour-3 some days after I get home from work.
The ET is the read-out from the Temp Sensor in the engine. It can be displayed on a Power Vision or a FP3/4. www.dkcustomproducts.com/efi-tuners-c74.htm Stopping at a dealership and having them plug into the digital tech to get an ET reading will not work, the temperature would have changed so much by slowing down to get there, plus the time it would take to get hooked up. The best oil coolers with a fan for your bike can be seen at the following link- www.dkcustomproducts.com/2009-up-models-c159-106.htm A second oil cooler, with a fan will reduce the temps, but it is not the total solution. I believe you will find the videos below useful. ua-cam.com/video/M9ta84TmROc/v-deo.html ua-cam.com/video/afgon9Qc1B8/v-deo.html
Where are you getting those temp readings from? There are only two reliable temp readings on a Twin Cam. 1. The oil temperature, measured at the tank, after 45 minutes or more of interstate riding. It should not go over 230 F on a hot day. If it does, it is running too hot for it's own good. 2. The ET reading shown on a Power Vision. This is the temperature that is measured by the heat sensor in the front cylinder head on a Twin Cam. This is the temperature that is sent to the ECM by Harley. This is used for a variety of purposes by the ECM, including to retard timing when it gets too hot for it's own good. 230* F everyday warm weather riding, with no more than 240* F in extreme circumstances. (at 260* F you will feel the sluggishness in power, and accelerated engine wear begins) Here is a link to a report with the above information, and much more, including what can be done to cool it down. btw, you will see in this report that the difference between a poor tune and a good tune only varies the ET by 10-15 degrees. While it is important to have a good tune, it is a myth that a good tune is all that is needed to cool these bikes down to the temperature that is optimum for them. www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm Here is a video that shows what happens to the power, as designed by Harley, when the temps get too hot- ua-cam.com/video/MF0hO-w2hz8/v-deo.html
@@DKCustomProducts on my pv3 . my et runs normal . 200-220 while cruising . It runs fine even with the cht reading 370. And it cools down when i come to a stop . What am i reading wrong
@@michaelmurphy4116 You're not doing anything wrong. For some reason dynojet decided to call the head temp sensor "ET". Then, to make things more confusing, they use the CHT to display a number that is NOT a reading from the engine, but is a number derived from an algorithm. The CHT algorithm take the heat sensor number, the IAT number, the MAP, and other factors and comes up with a number that the ECM does not even use. You will notice that it can change quite a bit and quite rapidly. Take a look at it on your next ride, then romp on the throttle when going 40 mph or faster, you will see it drop temp very quickly. Much faster than any metal in the engine can change temperature. ET of 200-220 is great on a Twin Cam.
@@DKCustomProducts thank you so much . I couldn't find any info on it and it was driving me insane . Like you said it would shoot up to 370 with the twist of the throttle . I'm going to completely take that reading off the screen then
@@DKCustomProducts No. I'm thinking that if the oil polymers breaks down at the temperature you're describing and exacerbates the problem then better oil should be developed to at least provide a little more protection for engine components. No doubt that you are correct about the high Temps being the major issue.
@@robertmcdougal2966 Ah, got you. I would prefer to keep the heat down, that way oils that we have available to us will work well, plus it is better on the metal expansion and contraction. Interesting side note: My wifes truck, a 2020 Ford, even while pulling a heavy load, in high ambient temps, rarely sees the oil temp go over 210, and when it does, it only goes to 215-217.
Interesting you ask. I saw an oil cooler on a v-twin lawn mower just a couple of weeks ago. But, we have done no testing on lawn mower engines. I am sure there are things that could be done, varying engine to engine. I would look at oil coolers and wind flow across the engine. I would also do an external breather system on it. Sorry could not be more help.
@@shanepipkin4041 There are so many different mower engines. My v-twin mower engine, that is behind me, has a pretty good fan built into the flywheel that helps cool the engine.
I’m running 130 C (266 F) with a tune and an external breather. Just cruising. Need to look at a oil cooler or a oil relocation kit. Can your oil relocation kit mount on the down tube?
If you have a bike that does not have lower fairings, then you can mount an oil filter relo on the downtube, see it at this link- www.dkcustomproducts.com/cnc-oil-filter-relocation-kit-sportster-dyna-softail-touring-dk-cnc-ofr-uni.htm
I'm looking to cool my 107 down this year..I just did a zippers 468 cam with an s&s oil pump. Can't ride till spring. Will the cam and oil pump effect temps ? Positive or negative?
Great question. 98% of the time when adding a more aggressive cam, the engine will run hotter. Change in temps because with upgraded oil pumps are negligible. Other changes that were probably made when you did the above are a tune, and possibly exhaust. Depending on what your tune was before, and what it is now, it may run a bit cooler, or it may run quite a bit hotter.
Two questions; How many years have you been growing that beard?. Second, is there an oil pressure gauge that I could put on our Trike?, would it even be feasible?.
I think it's been 15 years or so, but it stopped getting longer around year 8. Not sure what year you have, but there are sending units in the engine case, and it would just be a matter of finding a spot to mount an oil pressure gauge (I've seen some do it in the fairing lower cover). You may also have to swap out the sending unit to match whatever gauge you use.
@@kevingleason5434 Your 2015 you probably do not want to replace your volt meter or fuel gauge, so putting one in the lower fairing cover is an option. You can also mount one off one of your rocker cover bolts. However, I believe you do have an oil pressure readout in one of your screens in the center of the cluster.
They can get so HOT, but there is so much you can do to cool it down! Here is a link to our entire playlist on Why and How to Cool Down Your TC and M8 you may find helpful/interesting - ua-cam.com/play/PLb3bvZgbH929d5qHOxSER7fj9-ZWlqXym.html Here is a link to our written report on How and Why 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 Feel free to contact us with any questions; Support@DKCustomProducts.com 662-252-8828 Thank You for commenting! 😎
Maybe a little...more a mater of tighter and tighter emissions standards combined with how the Harley market wants their bikes to look and sound. HD is in a catch-22. We talk about it in this video- ua-cam.com/video/N0kLaVQhbW4/v-deo.html
Harley engineers are clowns I have been doing my research over the last 27 years of riding now moving to a tri glide going to get all my cooling goodies from DK customs. 😎
Glad to hear that you have been happy with your Twin Cams. Your statement that they will not self destruct flies in the face of the facts. We have seen dozens and dozens totally grenade, and hundreds, if not thousands, that still run, but according to Harley they have self-destructed enough that they require a re-build under warranty.
I’m in Florida I ride @50 miles to work and @50 back home my temp going and once at work is @300-316 plus when I get home it’s @306-320 plus. It’s a 2018 Road Glide Special M8 107. These temps are the ET reading on power vision the head temps are @22 plus give or take higher than the ET reading
That is a good goal. Pretty much the same as I have for my M8. Here is a video series outlining what I have done to achieve that. The first 7 videos are about WHY this is a good thing, starting with the 8th video is the outline on HOW to accomplish it- ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html This is a link to a Written Report going over most of the same information in the video series- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
320 F readout on the ET from a Power Vision is far too hot for optimum performance and for longevity of the engine. HOW LONG have you ridden when you see those ET and Oil temp numbers?
@@Heavy69Metal If you are riding an hour and ET on the PV is 320 and oil temp is 215, After riding for an hour, I would start with double checking the devices giving you those two read-outs...because something is not making sense. If you have oil in a pan on the stove, eventually the oil will be very close to the same temperature as the metal. Running it thru a cooler will not make for a 100* difference. On the M8, because of where the sensor is on the cylinder that feeds the ET readout on the PV, AFTER the engine is fully heat soaked, there should be a 45-65* difference (at interstate speeds) between the ET reading and the oil temp. These numbers apply to an oil cooled M8, not a liquid cooled. btw, what is the ambient temp you're riding in? Here is a video you may find interesting- ua-cam.com/video/h7EdjR8l8Ag/v-deo.html
Some more great information Brother 👍🏼💯
Thanks man, glad to hear.
@@DKCustomProducts anytime Brother 💯
My twin cam runs at 220 cruising with an oil cooler and breather from DK customs. And that’s on a hot day. 👍
That's great! Right where you want to be for oil and ET on a hot day!
My m8 is always over 300 on the highway using a FP3 to tell, up to 330 at highway speeds. 2017 ultra with 50,000 miles so far.
Is that the ET reading? The one the ECM uses? Or is that cylinder head temperature? If it is the ET, that is too hot. If it is ET the engine will keep running, it will have experienced a gradual reduction in power, as the cylinders go out of round and the valve seats no longer seal well. Normally this is so gradual that most folks never notice the reduction. But a dyno will see it, as will a leak-down test. See this video on leak down tests- ua-cam.com/video/2YrM7f321JE/v-deo.html
What is your oil temp running?
DKCustomProducts Head temperature I believe. What ever the FP3 uses
I'm glad you mentioned the oil temperature in Sportster. I have a temperature gauge in my oil tank dipstick which is accurate. With the 230 degree F target for maximum heat in the oil, I feel good because my oil usually runs between about 200 degrees on secondary roads and occasionally up to 220 degrees on the interstate in mid-summer. Thanks for the info. My 2005 XL883 has never burned, dripped or leaked any oil and I use Amsoil 20W/50 in both holes with changes @ 2500 mile intervals. So far, so good.
Those are great oil temps! Glad you're enjoying the vids. Thank you for the comment.
Got a sporty , great info on temp, Got the V and H FP3 , Dk high performance oil filter , Air filter , straight exhaust , Wish they had a page with the temps.
Yeah, very few Sportys need help running at ideal temps. I have an oil filter relo on one of mine, not for cooling as much as to make oil changes much easier. :)
LOVE THESE VIDS! THE SAME THING YOU ARE SAYING IS THE SAME THINGS I HAVE BEEN COMPLAING TO THE STEALERSHIP AND PERFORMANCE PARTS ABOUT ON MY M8 CONCERNING RUNNING HOT. I LIVE IN SOUTH ALABAMA, RIDE A 17 ROAD GLIDE SPECIAL. ON THE INTERSTATE CRUISING AT 70 TO 75 MY BIKES EXTERNAL TEMPS REACH 300. WHEN I EXIT THE INTERSTATE AND COE TO THE FIRST RED LIGHT AT IDLE MY ENGINE GOES INTO THE EITMS MODE... THATS NOT NORMAL BUT THESE MOTHER HUMPERS TELL ME IT IS!!!
Unfortunately it is normal....BUT, it is NOT right at all. After I had an engine rebuilt under warranty for running "normally" too hot, I decided to figure out how to cool these 2007 & later Harley's down.
Glad you are enjoying the video series and hope you get yours running how you want.
Thanks I ride an 2000 1200 & oil & engine or head tempts have always worried me in the HOT Georgia Sun with summer time tempts well into the upper 90 & low 100s so now I know my bike while seems hot is little under the extreams you mentioned ..Thanks for all yalls testing & knowledge yall share with the Harley Ridding Public Ill Keep watching & sharing with my Harley friends
Yes, you seem in a good safe range.
You can cool it down and gain a bit more power and less radiated heat...but at the temps you mentioned in your other post, you don't need to be concerned about running so hot you're causing damage.
Ride Free! 👍
My M8 107 stage 2 consistently runs at (PV Eat) 275+ in all conditions except for winter.
That isn't too bad for an M8, but anything over 260° on an M8 starts causing sluggishness in power, and damage can start occurring to the oil and causes accelerated engine wear.
Here is a video playlist on why and how to cool down your bike that you may find useful/interesting - ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
Here are to links to the two page written report we've made on the subject as well - www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
and
www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm
Please feel free to contact us with any questions;
Support@DKCustomProducts.com
662-252-8828
Thank you for commenting! MB
i run 20/60 oil redline and i stead run 280 plus. Put pipe thermo wrap on pipe that is helping. just ordered oil filter relocation. then going to order external oil cooler. With heat in texas around DFW area ive seen my bike run a steady 315 before. i have 17 Breakout
h
You are on your way to getting it cooled down. Nice work.
We appreciate your business, and those two additions are going to cool it down even more.
Here's a checklist we've developed over the years, and what I use on every new to me bike that I get.
www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
Great information!!! Thank you!!!!!
Thanks for the comment, and glad to hear you've found the video useful/interesting.
I'll have to check my ET with my FP3 today. Running your external breather bolts, high flow intake from K&N and full system pipe. Hopefully im cooler than that 260 on my M8
All depends on which M8 you have, what else you've done to the bike, what your ambient temps are, and how far your riding at one time. If you've only done what you've listed, and the ambient temps are above 60, and you're riding for 30 minutes or more at a time, you are most likely well above 260 degrees ET.
@@DKCustomProducts It was 85 yesterday and after riding 30 minutes at 80 i had a max ET of 275.
@@MeathedMoto What bike do you have? 260 is a good target, 275 is still not bad. 290 is where problems start happening. If you have an oil temp gauge, check it out next time you're on a 1 hour or more ride and see what it is at, along with your ET.
@@DKCustomProducts 2018 Road Glide Special with the 107" motor.
Good stuff, I have a twin cam, thank you.
Thank you. 👍
Ok...I have a RKS 2017. Not sure what my temp is, just know it feels cooler then others. Especially older models.
Yes, Harley has done an exceptionally good job on the M8's at protecting the rider from feeling the heat. But the M8's run just as hot as the Twin Cams, and have many of the same problems from the excessive heat that the engines components are subjected to. See the series on this subject here- ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
What happens if the ECM sees an over temp? Log, alarm, govern the engine?
No alarm or governing. The Power Vision can log it for later review, it also displays it real time on the screen.
I was wondering have you done video on rpms for the M8 and best shift points. Such info seems varied.
We have not done a video on this. Might be an interesting one. Will be sort of hard since there is no easy formula. Ideal RPM shift point varies, almost infinitely, on how hard one is accelerating.
May be why you are seeing so much varied info. One thing is sure, you don't want to lug it, that will generate excessive heat. But, again, that comes back to ideal shift points.
Yeah, good question. Might be a really good video. 👍
Another great video thanks for sharing
Thanks, glad you're enjoying.
Thanks! Good info.
Thank you, glad you're finding it useful.
Thank you for a very informative video!
Thank you, good to read.
My '12 Twin Cam has a stage 1 , Cobra Power Port duals header, Rush mufflers, performance machine jet air cleaner, and power vision tune from Fuel Moto. Today in Cleveland its humid with an air temperature of roughly 82 degrees. On my way home from work today, in city stop n go, my powervision ET hit 275! I thought adding this cobra header id have a cooler running TwinCam????
Hi Anthony,
The exhaust you have is having reversion, which is not good for heat. The air cleaner you have is feeding hot, oily, oxygen depleted air back into the engine, also not good for heat.
Here is a video on what you can do to mod your air cleaner to run the bike cooler, AND, with more power-
ua-cam.com/video/EfDeFZblMck/v-deo.html
Here is a video talking about exhaust, and an easy fix to them to help the bike run cooler, and with more power-
ua-cam.com/video/nB0XDQVjH9Y/v-deo.html
Here is a link to a report on Why & How to Cool your engine down- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
Thank you for the info!! Needed this! My 07 RG (96 inch twin cam) with Force winder intake, Vance and Hines 2 into 1, TMan 555tq cams, Pro Vision Tuner runs anywhere from 180 - 250 according to my ET gauge on the tuner. At first I was shocked by this but seems to be normal. I use full synthetic Lucas of course and change very regularly. Makes sense that this runs a little hotter with the big cams and more than enough power lol. Keep in mind this is also is dry, hot Las Vegas! Rode the other day for over 3 hours at about 65 degrees at 80mph with a passenger and ET didn't go over 190. In the 110F days out here seen it at 265+ ET. That's when I don't ride lol. But for the mods I have and Temps I've seen. 180 - 250 could be normal. Still freaks me out though lol
Yeah, best not to go over 230* F, but the temp range you are running is much better than most.
We have a video coming out in the next month or so showing how radically the power drops when the engines get too hot.
@@DKCustomProducts yeah I need to look into some modifications like an oil cooler and fans. I know there are some well known kits. Can't wait to see what other info you give us! Really appreciate it!
@@tonytwotime783 Glad you're digging the videos.
On my 05 Road King and 09 Ultra, I ran two oil coolers.
One down in the factory position, but with a fan. See link below.
Then I also ran one on the downtube. It is in another link below...along with a link to a video on oil coolers.
www.dkcustomproducts.com/fan-assisted-lowmount-oil-cooler-system-harley-touring-models-dk-j-751-fp2300.htm
www.dkcustomproducts.com/auxiliary-oil-cooler-for-all-harley-twin-cam-w-o-lowers-dk-sec-oc-tc.htm
ua-cam.com/video/M9ta84TmROc/v-deo.html
My engine oil temp usually runs 195 /210. (My engine, exhaust, and tune are modified). If I see my oil temp hit 225/230 I pull over and let my engine cool off for 15 minutes or more. My wife thinks I'm nuts but according to this video it's justified. I'm lucky because I rarely hit traffic or stop lights riding in New Hampshire and Maine. I feel bad for the riders that can not avoid this condition.
Not sure which bike you have, but having the oil run 195/210 is great. 225-230 is about as high as you want to see it. The other factor is what is the actual metal in the engine. If you have a lot of cooling for your oil, engine could still be hotter than ideal. But it sounds like you have a good handle on things.
Thanks for the comment.
@@DKCustomProducts 2013 FLHTK, Use REDLINE products in all three holes. I think my Tune, cams (S&S551) exhaust (S&S Power Tune Duals and SPO mufflers), and S&S air filter. The bike was a heat monster stock and ran horribly until the mods in my opinion. It now runs as it should have from the day of purchase.
@@kerrylewis2581 Enjoy the ride!!!
Does mufflers effect engine temperature?
Free flowing exhaust slip-ons are a very important factor in cooling the engine down. The stock exhaust mufflers (slip-ons) are restrictive, resulting in the engine fighting against itself. In doing that it generates heat with no resultant forward movement.
By removing this restriction, you are allowing a free flow of exhaust exiting the engine, which plays an important role in keeping the engine cool.
The stock headers on Harley’s are very respectable, and are not restrictive. Replacing them will not have a significant benefit in lowering engine temperature. If your Catalytic Converter is in your headers (all Touring & Trike models) you can remove it, or replace the headers for a reduction in Felt heat from the exhaust.
Here is a written report of exhaust that you may find interesting - www.dkcustomproducts.com/harley-exhaust-myths-and-facts.htm
Feel free to contact us with any questions;
Support@DKCusotmProducts.com
662-252-8828
Thank you for commenting! MB
I have spoken with you guys a few times on the phone and via fb messenger, one thing I haven’t addressed with you guys directly is temp numbers on my 19 sg 107. Im running a s&s 475G, arlen ness velocity 65 and fuel moto jackpot street outlaw 2/1 tuned with a pv. I have added an a1 cycles/m3 ventilator to reduce crank pressure, the dk deluxe tank lift, and cooling deflector wings as well as an ultra cool side mount fan assisted oil cooler. My et ranges between 270-295 currently (i installed the ultra cool yesterday 7/18/20) and head temp ranges from 290-315. The hotter temps are of course on hotter days. I rip my bike through the rpm range frequently, im not the kindest rider lol. Are these temps in an acceptable tolerance? I still have a few more things i want to do including adding the dk oil filter relo kit, a tmax oil cooler fan for the bottom cooler and love jug fans for the heads.
The reason behind the tmax fan is because i live in a very tourist hit area so i know i need the extra wind during the summer.
The reason im asking after you just made this awesome video is because even when i see alarming temps on my pv, my motor doesnt miss a beat and has all the power it is built to have, the only effects i feel are a little sluggishness in the first 5 ft coming from a dead stop almost as if it hiccups and then rolls out.
You are right on the edge on the ET, which is probably why you feel that bit of sluggishness on the take off. With the other things you're talking about (oil cooler fan & Filter Relo) you'll probably get off the edge.
Couple of notes- If you have not done an EBS (see this link- www.dkcustomproducts.com/all-twin-cam-engines-c76-192.htm ) you will get better power, lower temps, prolonged engine longevity, and tune stability by installing one.
We only look at the ET on the power vision, the head temps vary too much to be a reliable indicator of overall heat.
What are your oil temps running? That is a very important indicator on overall health and functioning.
DKCustomProducts i made my own ebs meant to mention that as well, its not the prettiest setup but it is working, used the stock headbolts and rubber boots instead of the arlen ness headbolts and ran fittings and fuel line to the back of the bike.
As for oil temps at the moment im not sure, its cool enough where my ultra cool fan hasn’t turned on yet so according to them that has to be sub 230 or right at it when et is around 290
Will it hurt to run flow fans and an electric oil cooler? I ride in the Ozarks a lot , and my electric oil cooler seems to stay on more than I would think it needs to. It kicks on at 230 degrees.
That shouldn't hurt anything as the Fan and the oil cooler should not come on until your bike is at about 230 degrees.
I am not sure what bike you have, but you may find this video informative/helpful if your bike is running hot - ua-cam.com/video/CAcF0T-Cs3E/v-deo.html
Please feel free to contact us with any questions;
Support@DKCustomProducts.com
662-252-8828
Thank you for commenting! MB
I didnt know my power vision had a engine temp and a engine head temp both to chose to monitor on my 20 or 21 m8s.. But ive made a few mods, and my oil temp (via harley oil dipstick) at 98 degree outside temp my oil makes it up to 215 on hwy driving..and down to 205 stop and go traffic, however my Power vision (by one selected) runs 300-325 inthe 98 degree hwy riding.. Either its not there, or i can not find head temp (only ET Temp) with my option selected, but what i am measuring in no way could ever stay below 230 degree. Edit: I found the Head Temp selection under Advance options selections, but I also noticed it reads about 20 degrees above reality while sitting cold in the garage..
Those are great oil temps! My guess is you have M8 Softails, or Touring models with no lower fairings.
Regarding your Power Vision, the should be an "ET" gauge. The CHT gauge is worthless for monitoring engine temps...it is an algorithmically derived number that changes quite a bit, and is not reflective of actual engine temperature.
Here is a link to a video showing the ET displayed in the middle left of the screen. ua-cam.com/video/5OTSwYFPABE/v-deo.html
@@DKCustomProducts I have a Road King , and my Street Glide does have lower fairings (I always leave the vents fully open) and 20mm lift on the front of the tank, stage 2 Wood's cam, S&S oil pump and cam plate, added fan to oil cooler (same for the road king engine mods) , and.yea that ET temp was climbing on extended 65+mph riding when riding in 100 degree weather..it seem top top out below 330,. I suspect oil temp would have been 220 at that same moment if I was able to observe it.
@@ut1004bp Yeah, those are really hot temps for the ET. Something is still awry with your builds that they are building that much heat, especially at 65 mph.
You can see what happens at the 270 F mark in this video- ua-cam.com/video/5PxJ8PvcVtc/v-deo.html
@@DKCustomProducts Yes I can see the curved shape might aid in some air flow as opposed to a flat crash bar lower set would..I think I've responded last year to your test of the above mentioned.. but To create more funneled air flow, I've rotated my horn housing forward and remounting to be center of the two cylinders, rotated the horn backwards to prevent water intake, and I believe it will be another no-cost heat reduction solution for the rear cylinder (will get it hottest at 65+ mph on very hot days) as there needs to be more air flow for that rear at those occasions, I haven't tested this mod yet.
@@ut1004bp Nice. Looking forward to hearing your results.
What tool do I need to check the oil and engine temp on a 2020 Trike Ultra? Thank you for all the videos, I am watching all of them for educational purposes...
We here at DK use the oil temp gauge dip stick at this link - jescustomaccents.com/products-1/ols/search?keywords=dip%20stick&sortOption=descend_by_match
The Power Vision is a great tool to use for tuning and monitoring your engine temp. You can see it at this link - www.dkcustomproducts.com/dynojet-power-vision-flash-tuner-w-auto-tune-dk-pv-cmp-pkg.htm
Please feel free to contact us with any questions;
Support@DKCustomProducts.com
662-252-8828
Thank you for commenting! MB
@@DKCustomProducts Thank you for the quick reply and information...
You are most welcome! Thank you for commenting! MB
How can I get a lift kit for my gas tank
Go to this link- www.dkcustomproducts.com/gas-tank-lift-kits-c4.htm
Feel free to email or call with any questions:
Support@DKCustomProducts.com
662-252-8828
The printout for the tc shows the sensor at the front of the rear cylinder but you are saying the rear of the front cylinder. Which is it?
Every 2007 and later Twin Cam we've looked at have the heat sensor at the rear of the front cylinder. The M8's are at the front of the rear cylinder. The schematics in this video show what is said above, but you can go online and look at the schematics for any year and model bike and see where they are located.
Just put a power vision on my 21 Road Glide special. My ET got up to 334 degrees while running down the interstate. I'm running amsoil. I have your tank lift kit installed. I found no loss of power. The bike runs great. And just normal running at under 70mph it will run around 280. What could be my issue?
That is far too hot.
Here is a video we just released on a common sense approach to cooling the engine down to the optimum operating temperatures.
ua-cam.com/video/CAcF0T-Cs3E/v-deo.html
Some bikes will run for their lifetime with damage caused by excessive heat, others, not so much. Here is a video on that subject- ua-cam.com/video/uyryiq6BzQY/v-deo.html
Here's another one you may find interesting- ua-cam.com/video/2o9k__6MV6Q/v-deo.html
A loss of power due to crossing the 270* mark will not necessarily be felt. It will if you are full throttle, you will see it on the dyno, but is is not something one would necessarily feel in normal riding.
Always feel free to email or call with any questions:
Support@DKCustomProducts.com
662-252-8828
KP
Which is better to use to cool down my 2015 Ultra Limited liquid cooled engine/oil temp? Force air fan or adding an aftermarket oil cooler?
An aftermarket oil cooler is a good step in cooling down your bike. There are many other things you can do to cool it down, there is a link to a written report where they are all outlined, with temp drop results.
Here is a video that is very pertinent to your Twin Cooled bike, illustrating why an oil cooler is important on the Twin Cooled Bikes- ua-cam.com/video/6AhPqVlvE-w/v-deo.html
Here is a link to the oil coolers we offer and use- www.dkcustomproducts.com/oil-coolers-c134.htm
Here is a link to a written report on how and why to cool down your Twin Cam part 1 - www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
Part 2 of the report - www.dkcustomproducts.com/why-how-to-cool-down-your-twin-cam-engine-part-ii-dk-cl-tc-dn-2.htm
Please feel free to contact us with any questions you might have;
Support@DKCustomProducts.com
662-252-8828
Thank you for commenting! 👍😎👍
I know the "Engine Temp" on FP-3 and FP-4 is supposed to be equal to Power Vision indication, have you seen that to be true? I have the FP3 on my dual cool 15 Ultra and it running at 200 on the freeway and up to 225 in traffic and My 2010 Dyna with the FP-4 runs 225 to 235 or so on highway and hits 250+ in traffic. South Florida 90 degree days... Just wondering if PV and FP indicate the same.
Those are some good temp readings you are getting. On the Power Vision the one you want is ET, on the FP3 and FP4, I believe the heat sensor embedded in the head is displayed as F
At 250F on the Twin Cam you are a bit high...you don't want to see it go over 230 F.
Here is a video of low and no cost ways to get it a bit lower- ua-cam.com/video/o3T3yA9BKwE/v-deo.html
Always feel free to email or call with any questions. We appreciate your business, and I believe you will be well pleased with your EBS.
Support@DKCustomProducts.com
662-252-8828
My 1200 Custom (with a Stage 1) is getting up around 400°... guess I better do the auto tune. I'm betting it's running lean. That hasn't even been in real hot weather.
What year is your Sporty? 400 F in weather that is not real hot is a little unusual for a Sporty. Tune first, still too hot, then possibly an oil cooler and/or a coil relocation.
@@DKCustomProducts I removed the air filter cover and did the autotune on the FP4. That seemed to bring it down to around 360-370. Also have an oil cooler on the way but the above steps definitely seemed to help! Thanks!
@@DKCustomProducts to answer your question, it's a 2014. Had about 2400 miles on it when I got it about 2 months ago. Put over 1k on it so far. But the autotune and taking the cover off the air cleaner seemed to help!
Good Deal! 👍
Glad you're getting it cooled down! 👍😎👍
I have an oil temp dipstick.What would be the target oil temp on a 1997 Sportster Hugger?I thank you in advance for your answer. Keep up the excellent work and videos,DK Custom Products.
You 97 Sporty is the same as what is talked about in this video where we start talking about Sportys at the 1:17 mark. 320-375 on the heat sensor in the top of the rear cylinder, and 230 max on the oil temp. 👍
@@DKCustomProducts Thanks DK Custom Products,that's good to know.I live in the Phoenix,AZ. area and even during the summer,the oil temp doesn't see 230 degrees.I am lucky to see 200 degrees.This may have to do with how rich the main jet is on the carb. Though,it is not so rich as to be blowing a lot of raw fuel out the pipes,but i need it a bit rich for the highway,which i set the bike up for. It's a balancing act. Now i need to do something to get clean air to the rear cylinder.I find because of cost,those forced air fans are out of the question. I've been trying to find a way to scoop and direct air to that cylinder,but really can't find a place to anchor the scoops.Any help will be appreciated.
@@tracyjones6284 Sounds like you are doing everything right. It helps that it is a carbed bike, and made before HD started getting hammered hard by the EPA on restrictions.
We have looked at making a scoop, like they used on the shovels.
You can see an image of what I am talking about at the link below. You may be able to grab one and make it work for you.
cdn.shopify.com/s/files/1/0323/0430/0171/products/42-1010c_2048x.jpg?v=1587744886
@@DKCustomProducts I looked at the photo,good looking scoop.Problem,that is where i am relocating the coil. Now what?
@@tracyjones6284 Yep, I hear ya.
Have you done a tank lift? That will get a bit more air over the rear cylinder, along with your coil relo.
So which would be the temperature that I'm looking for. A dipstick thermometer or a powervision readout?
We look at both, but if I had to choose which one is more important...that is the heat sensor in the cylinder head. Both the Power Vision and the FP4 can display that for you.
@@DKCustomProducts Thanks! If it ever warms up here in Mn I think I'll plug in my PV and see what the temp tells me. I would still like to have a dip stick that reads oil temp.
Yes, it is useful to have both. Once we have a bike dialed in to the optimum temps, we rarely look at them. But it is good to have them to get your bike where it is happiest.
On a Fp3 tuner the engine temp is that ET sensor right?
It is reading the heat sensor that is embedded in the cylinder head. 😎
Thanks for commenting! 👍 MB
@@DKCustomProducts and I want that at around 230 degrees?
230 is the normal operating temp!
Here is a full video list of why and how to cool down your TC and M8 that you may find useful/interesting - ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
Thanks for commenting! MB
How does one get “our” “ET” On a Twin Cam? (2016 Road King) Do I have to stop at a Harley Shop after riding for an 2-3 hours in 98 degree temperature in Houston area?
which I do recently here lately.
I have a heat gun that I shoot at (top of the engine) when pulled in my garage and it reads 320-340 degrees.
Where can I buy and decent oil cooler fan & is that gonna bring that temperature down enough? It’s 99 today and my wife will ride for an hour-3 some days after I get home from work.
The ET is the read-out from the Temp Sensor in the engine. It can be displayed on a Power Vision or a FP3/4. www.dkcustomproducts.com/efi-tuners-c74.htm
Stopping at a dealership and having them plug into the digital tech to get an ET reading will not work, the temperature would have changed so much by slowing down to get there, plus the time it would take to get hooked up.
The best oil coolers with a fan for your bike can be seen at the following link-
www.dkcustomproducts.com/2009-up-models-c159-106.htm
A second oil cooler, with a fan will reduce the temps, but it is not the total solution. I believe you will find the videos below useful.
ua-cam.com/video/M9ta84TmROc/v-deo.html
ua-cam.com/video/afgon9Qc1B8/v-deo.html
How did i miss video #4?
You got it now! ua-cam.com/video/HC-Z_rZtY9c/v-deo.html
My 2011 road glide custom head temps reach 370 cruising . My efi is never over 14.4. I'm concerned
Where are you getting those temp readings from?
There are only two reliable temp readings on a Twin Cam.
1. The oil temperature, measured at the tank, after 45 minutes or more of interstate riding. It should not go over 230 F on a hot day. If it does, it is running too hot for it's own good.
2. The ET reading shown on a Power Vision. This is the temperature that is measured by the heat sensor in the front cylinder head on a Twin Cam. This is the temperature that is sent to the ECM by Harley. This is used for a variety of purposes by the ECM, including to retard timing when it gets too hot for it's own good.
230* F everyday warm weather riding, with no more than 240* F in extreme circumstances.
(at 260* F you will feel the sluggishness in power, and accelerated engine wear begins)
Here is a link to a report with the above information, and much more, including what can be done to cool it down.
btw, you will see in this report that the difference between a poor tune and a good tune only varies the ET by 10-15 degrees. While it is important to have a good tune, it is a myth that a good tune is all that is needed to cool these bikes down to the temperature that is optimum for them.
www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
Here is a video that shows what happens to the power, as designed by Harley, when the temps get too hot-
ua-cam.com/video/MF0hO-w2hz8/v-deo.html
@@DKCustomProducts on my pv3 . my et runs normal . 200-220 while cruising . It runs fine even with the cht reading 370. And it cools down when i come to a stop . What am i reading wrong
@@michaelmurphy4116 You're not doing anything wrong. For some reason dynojet decided to call the head temp sensor "ET". Then, to make things more confusing, they use the CHT to display a number that is NOT a reading from the engine, but is a number derived from an algorithm. The CHT algorithm take the heat sensor number, the IAT number, the MAP, and other factors and comes up with a number that the ECM does not even use. You will notice that it can change quite a bit and quite rapidly. Take a look at it on your next ride, then romp on the throttle when going 40 mph or faster, you will see it drop temp very quickly. Much faster than any metal in the engine can change temperature.
ET of 200-220 is great on a Twin Cam.
@@DKCustomProducts thank you so much . I couldn't find any info on it and it was driving me insane . Like you said it would shoot up to 370 with the twist of the throttle . I'm going to completely take that reading off the screen then
@@DKCustomProducts I'm still going to put a Jims fan on it . That 103 gets hot quick in stop and go
Need more development of oils
Please expound. You think a better oil will take an engine from 300^ down to 220* ?
@@DKCustomProducts No. I'm thinking that if the oil polymers breaks down at the temperature you're describing and exacerbates the problem then better oil should be developed to at least provide a little more protection for engine components. No doubt that you are correct about the high Temps being the major issue.
@@robertmcdougal2966 Ah, got you. I would prefer to keep the heat down, that way oils that we have available to us will work well, plus it is better on the metal expansion and contraction.
Interesting side note: My wifes truck, a 2020 Ford, even while pulling a heavy load, in high ambient temps, rarely sees the oil temp go over 210, and when it does, it only goes to 215-217.
you know alot on twin engine do you know anything on v twin commercial mowers want keep oil temp down no temp gauge just oil cooler
Interesting you ask. I saw an oil cooler on a v-twin lawn mower just a couple of weeks ago.
But, we have done no testing on lawn mower engines. I am sure there are things that could be done, varying engine to engine. I would look at oil coolers and wind flow across the engine. I would also do an external breather system on it.
Sorry could not be more help.
with the engine behind me I just don't ee much air flow on the engine ordered a fan to mount up to help maybe
@@shanepipkin4041 There are so many different mower engines. My v-twin mower engine, that is behind me, has a pretty good fan built into the flywheel that helps cool the engine.
I’m running 130 C (266 F) with a tune and an external breather. Just cruising. Need to look at a oil cooler or a oil relocation kit. Can your oil relocation kit mount on the down tube?
If you have a bike that does not have lower fairings, then you can mount an oil filter relo on the downtube, see it at this link- www.dkcustomproducts.com/cnc-oil-filter-relocation-kit-sportster-dyna-softail-touring-dk-cnc-ofr-uni.htm
I'm looking to cool my 107 down this year..I just did a zippers 468 cam with an s&s oil pump. Can't ride till spring. Will the cam and oil pump effect temps ? Positive or negative?
Great question. 98% of the time when adding a more aggressive cam, the engine will run hotter. Change in temps because with upgraded oil pumps are negligible.
Other changes that were probably made when you did the above are a tune, and possibly exhaust. Depending on what your tune was before, and what it is now, it may run a bit cooler, or it may run quite a bit hotter.
Two questions;
How many years have you been growing that beard?.
Second, is there an oil pressure gauge that I could put on our Trike?, would it even be feasible?.
I think it's been 15 years or so, but it stopped getting longer around year 8.
Not sure what year you have, but there are sending units in the engine case, and it would just be a matter of finding a spot to mount an oil pressure gauge (I've seen some do it in the fairing lower cover). You may also have to swap out the sending unit to match whatever gauge you use.
@@DKCustomProducts , 15 years,wow.
Ours is a 2015 FLCHU or however it is spelled.
@@kevingleason5434 Your 2015 you probably do not want to replace your volt meter or fuel gauge, so putting one in the lower fairing cover is an option. You can also mount one off one of your rocker cover bolts. However, I believe you do have an oil pressure readout in one of your screens in the center of the cluster.
@@DKCustomProducts ,I will check that.
Thank you
My 2010 Fatboy runs so damn hot in traffic it will fry your right leg, ive even had to jump off at red lights in stop and go traffic.
They can get so HOT, but there is so much you can do to cool it down!
Here is a link to our entire playlist on Why and How to Cool Down Your TC and M8 you may find helpful/interesting - ua-cam.com/play/PLb3bvZgbH929d5qHOxSER7fj9-ZWlqXym.html
Here is a link to our written report on How and Why 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
Feel free to contact us with any questions;
Support@DKCustomProducts.com
662-252-8828
Thank You for commenting! 😎
I'm offended... you said "retard". I need to get to my safe space
Harley Engineering
Maybe a little...more a mater of tighter and tighter emissions standards combined with how the Harley market wants their bikes to look and sound.
HD is in a catch-22. We talk about it in this video- ua-cam.com/video/N0kLaVQhbW4/v-deo.html
Harley engineers are clowns I have been doing my research over the last 27 years of riding now moving to a tri glide going to get all my cooling goodies from DK customs. 😎
Thank you, we appreciate your business, and believe you will be well pleased with the benefits of our parts.
Ahh the truth shall set us free again! My new American citizen,well yikes huh.!! Tread on tires not me!!
👍😎🏍👍
Self destruct? I'm on my 4th Twin Cam..... it will not self destruct.
Glad to hear that you have been happy with your Twin Cams.
Your statement that they will not self destruct flies in the face of the facts.
We have seen dozens and dozens totally grenade, and hundreds, if not thousands, that still run, but according to Harley they have self-destructed enough that they require a re-build under warranty.
I’m in Florida I ride @50 miles to work and @50 back home my temp going and once at work is @300-316 plus when I get home it’s @306-320 plus. It’s a 2018 Road Glide Special M8 107. These temps are the ET reading on power vision the head temps are @22 plus give or take higher than the ET reading
That is too hot. Accelerated wear is occurring at those temps, also decreased power is being made at those temps.
@@DKCustomProducts I know. Grrrr
@@DKCustomProducts I got your tank lift and going to be installing it this coming weekend
@@Heavy69Metal 😢
@@Heavy69Metal That is a great step toward cooling down the temps!
I want my Harley M8 touring RG to have an ET of 240 or less to be while riding or sitting for long periods of time
That is a good goal. Pretty much the same as I have for my M8.
Here is a video series outlining what I have done to achieve that. The first 7 videos are about WHY this is a good thing, starting with the 8th video is the outline on HOW to accomplish it-
ua-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
This is a link to a Written Report going over most of the same information in the video series-
www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
On temps @50-75 M8 according to Power Vision is anywhere from 320-331 and oil temp under 215 according to Oil Dip Stick read out
320 F readout on the ET from a Power Vision is far too hot for optimum performance and for longevity of the engine. HOW LONG have you ridden when you see those ET and Oil temp numbers?
@@DKCustomProducts takes me 45 min to an hour to get to work and to get home
@@Heavy69Metal If you are riding an hour and ET on the PV is 320 and oil temp is 215, After riding for an hour, I would start with double checking the devices giving you those two read-outs...because something is not making sense. If you have oil in a pan on the stove, eventually the oil will be very close to the same temperature as the metal. Running it thru a cooler will not make for a 100* difference.
On the M8, because of where the sensor is on the cylinder that feeds the ET readout on the PV, AFTER the engine is fully heat soaked, there should be a 45-65* difference (at interstate speeds) between the ET reading and the oil temp. These numbers apply to an oil cooled M8, not a liquid cooled.
btw, what is the ambient temp you're riding in?
Here is a video you may find interesting- ua-cam.com/video/h7EdjR8l8Ag/v-deo.html
@@DKCustomProducts I agree. It’s not making sense at all
@@DKCustomProducts update 131 @325 off power vision ET and Harley oil dipstick says @240
220-240 on power vision for an M8 touring
Thank you! Very informative videos!
Thank you, glad you found it useful.