CRF300L Air Box Mod & Filter
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- Опубліковано 22 лип 2024
- CRF300L air box mods and high air flow filter. Let BREATH!! haha Continuing with the performance mods. Be sure you watch the whole series from the beginning so you understand everything I'm doing. Our goal is to increase power without hurting reliability.
Filter www.dnafilters.com/us/product...
Uni Filter imp.i104546.net/rn1ZMR
Snorkel amzn.to/3u5ujKZ
0:00 Intro
0:22 The Problem
1:29 The Parts
4:55 Snorkel Modification
7:44 Pre Filter
9:15 DNA Filter Install
10:30 Closing
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You can see in UA-cam how the DNA filters are made, and they come stock in some KTM and Yamaha bike's, the best one can get you 14hp on a superduke but it cost 500€ greetings from Greece 👋
The DNA product looks like a great quality product. Nice job modding the intake snorkel.
Dyno vid! Dyno vid! Dyno vid! Like a power lifter cracked out on pre-workout I just wanna see GAINS
Watching you work on bikes is like ASMR. You're very methodical unlike when I do it and can never find the right tool.
i find that standard air boxes are quite good for making power and are better than a pod unless your racing
I immediately looked for a DNA filter for my klx300sm
It would be cool if you did a dyno between each performance mod. Btw awesome videos bro..i got the same bike modded up and am impressed with the results
Cool mods. Sterile snorkel install
Great project really enjoy your stuff. Is there any reason you didn't just stretch a PC filter skin around the DNA filter?
DNA its the best filter company in Greece in my opinion its better than K&N.Its good to see america support Greece companies
*Cop shows up*
"So, we understand you are about to remove all of your emissions stuff?"
Jake: 0.0
😂
You couldn't pay me to run a k&n or DNA filter on anything I use offroad. I made that mistake years ago on my 2011 kx250f. I had a brand new DNA filter, and it let enough dirt and sand in. That my cylinder wall got destroyed. Paper or duel stage foam is the only filters that I will use on a offroad application.
I had the same experience with a K&N.
Same here Matt!! Never again
T. U . JAKE ... YOU MAKA DA BEST VIDEO, S Honda,s..I am hoping to get a 2023 HONDA C L 250 / 300 THIS FALL AND YOUR VIDEOS INFORMATION ON CFL 300,S SHOULD BE BENEFICIAL! THANK YOU.. Sherwin
Hello. So you let more air in. Is that useful if you don t let more air out, like at least by removing the baffle? Thanks for enlightening me.
Where did you get the frame for the pre-filter? Also, did you think about putting a Uni sock filter over the snorkel instead of the one inside the air box? That would allow you to clean the pre filter without having to take the door off the air box.
I need to clean my car one thanks for reminding me 😂
Order form Filter and pre- filter from Uni- Filters Australia.. I’m going to put another OEM snorkel beside the other one ☝️ ( both cut down and shortened.
For them screws that just go straight into the plastic airbox, knowing how lazy I get and how dumb I can be, I've always put them metal inserts that use a soldering iron to melt them in. After your 100th filter wash and oil, future you will thank past you! 👌
"We're going to add airflow then we're going to take airflow away."
What is the net positive here?
Witness protection program?
damn lucky you. i gotta take half my frame apart to take my air filter box off
10:06 Nice🙂. My Dad taught me this
Shit man I have crf300l and I love how you teach me how to upgrade my bike. ..I've done half of what you've done and I love my bike..Keep done what your doing .thanks
Got a 550 ECU flash in it yet? :)
where do i get frog skin tape?
Your the best
Surely you modded the ECU after this? I imagine it running hotter than the surface of the sun with all that extra air 😂
Jake, look what you’ve done. Started a filter war in the comments!
Good 🍿😂
Would you still have used that foam pre filter on the DNA air filter if you didn't modify the snorkel? Thanks!
Probably, I hit a lot of dust roads
Love you jake!
There have been numerous tests that show paper filters do a better job of filtering out fine dust than oiled foam style filters which is one of the reasons more of the OEM's are moving in that direction.
On competition dirt bikes with much more frequent service intervals (top end rebuilds, valve checks, etc) this isn't a big deal,
Not exactly rocket science. Of course they do a better job of filtering... because paper filters are more restrictive. Oiled filters are trying to get near that filtering level, while drastically increasing airflow...
@@troyjollimore4100 not sure I completely agree with that. Filter performance also has to do with the surface area of the filter media. You can cram a lot more surface area in a pleated filter than you can with a standard foam filter. This is a benefit when the filter begins to load up. The smaller the surface area the more the pressure drop increases meaning less flow. To some degree filter design is Rocket Science.
In the video below the Unifilter product loaded up and failed much quick than some of the other styles. I do run a pleated Guglitec filter on my 690 instead of paper. Not so much for performance but rather that I can field clean it if I need too.
ua-cam.com/video/JgZPkggKNiI/v-deo.html
@@Jarvis60 You're still stuck on the filtering aspect. This is where the oiled filters depend on the oil to catch and hold small particulates as they bounce off the oil-covered strands. Filter design IS rocket science, but it's also a big ol' vacuum sucking air through a straw. You want the balance of good pressure with good flow.
Notice the oiled filters all say they will probably require more engine maintenance since they can't filter as well as pleated paper.
@@troyjollimore4100 I think we are saying the same thing. The oiled foam filter in that test loaded up quickly and became more restrictive than the paper counter parts with the same amount of contaminants.
Hence, to maintain performance you would need to clean that filter more often along with increased engine maintenance.
Since I don’t race I am more concerned how well a filter keeps dirt out of the engine than trying to squeeze out an extra hp.
But I do like my Guglatech filter since when you use the oil with the pleated membrane it filter just about as well as a paper filter plus if you should play submarine commander you can pretty much pull it and clean it out.
remove stock filter because it is restrictive .
ad foam to new high flow filter to restrain the flow .
pick both :D
at least its reusable
Does the bigger opening really make a difference when on the other side of the filter is the same small opening on the intake boot?
Yes, it does. As the engine sucks air through the FI inlet tube The amount of air available to be filtered is increased. To test this out, put a straw into a small cup that has had the top sealed off except for the straw. Suck in. Now use the same straw and put it in the end of a large soda bottle and seal it off and suck in with the same force as was used with the small cup. Notice a difference ? This was a problem 50 years ago when factory MX race bike builders/designers started using still air boxes. They did not allow for volume inefficiencies and designed their inlet openings too small.
The bigger opening actually reduces air to the engine because this backyard hack destroyed intake resonance those pesky Honda engineers designed into it. Just one look and Jethro knew those dang fool Japanese automotive engineers had screwed up the air intake design!
are there holes in the bottom of the air box, so if water gets in there it can drain out?
Two drain holes.... One before the filter, one AFTER the filter.
The one after the filter is plugged.
Did the plastic "border" that holds your pre filter in place come with the DNA filter? If not, where can I get one?
... My DNA came with the metal frame/boarder.
... My DNA came with the metal frame/boarder.
@@240LTS Mine did also, I just didn't realize at first. Lol. I put it to use. Thanks
@@CajunEscapades ... I did not add the layer of foam pre-filter on the DNA frame. I removed the snorkel, cut it in half, add an extra hole in the back top of my air box, put the now two pieces of snorkel in there and on them I added the long red UniFilter socks that lay under the seat.
I use the twin air foam filter. Comes pre oiled ready to go.
That didn’t exist when I did this
DNA sent you cleaning fluid kit. But for us that don’t want to import cleaning fluid kits. What solvent can you use. I’ve ordered one you’ve sold me on it. But can’t find much info on cleaning it with alternative solvents
A K&N recharge kit will work. Both are cotton with metal mesh filters.
So what determines what the engine needs for air flow. The inlet hose diameter or the air filter itself ? Cause if you increase the inlet wouldn’t it effect the air getting to bike and make run leaner?
I wonder this too, because it is well known that the 300L comes lean from the factory.
@@ArbitraryLifestyle I’d be cautious with any of these mods. My bros rally has issues after
... From my understanding, the bikes computer adjust for the air flow.
.
The DNA air filter is $100 and it is washable and reusable like a K&N
Hay Mate Paul from Australia 🇦🇺 our Australian Uni- Filter is the only place that makes a Form Filter and per- Filter
And you can't get them in the US...
@@TheGardenSnake You can get them posted to the US , just go to their website
Theres some new etsy 3d print things available inspired by this that look a little mote official than just the 3 inch tube.
Next time you have to cut something our: do not use the rubber hose to draw an oval. Just draw the oval on a piece of paper, use THAT paper as a mold!
Well you must have some kind of supercomputer tuner or something that most of us don't know about cuz you just change the air flow big time from stock the 5:50 performance ECU flash has made for free flow exhaust and a air filter not a bunch of extra
Probs takes it to a dyno?
You can get the software that allows you to custom create your own flash based on dyno results.
Scene: Jake removes backfire screen to install new filter and snorkel.
A Few Moments Later: EPA cops show up !
Cop: What are you doing with this massive airflow increase...wait...is that an AFTERMARKET TUNER & EXHAUST over there !!! NOOOOO
E.P.A. COPS > WE,LL "TAKE IN HAND" A 10 K $$$ CASH FINE .. BTW ,, WHO WAS THAT MASKED MAN ?? J.B.
J.B. & SON H.B.
All you need is the 5:50 performance Flash the DNA air filter and exhaust it purrs like a kitten you don't need more air than that
... What you mentioned. Me, 550 Stage 1 ECU, Opened up the back of the air box like this. ... ua-cam.com/video/tc3M42IXbAc/v-deo.html ... With the red long UNI pre-filters to be under the seat, DNA filter, Full Yoshimura RS4. I do have the CBR throttle body stack but that would be the last thing I install if at all.
what about hiFlow filters. the green ones. just the mesh with air filter spray stuff?
You could put a 8 inch snorkel on it but you are only as big as your smallest point etc throttle body
8 inch! What are you crazy? The power would be insane, someone could die!
The coupler squished isn’t the same cross sectional area.
Paper filter no waterproof on a dirt bike
Love me some air mods but how can the exhaust take so long :(
ps: I am genuinely starting to love this bike
I have an aftermarket exhaust on my daily bike with db-killer and catalytic converter, it’s only 0.5 db louder but sounds deeper and I notice a better gas response.
You need exhaust and tune, without its not big difference :P
those "high flow" type filters like k&n suck, best engine killers you can buy. AND the stock filter works very very well. They are engineered to provide all the air the stock engine could want when 50% plugged. Probably more than enough for mild "back yard" modifications when 40% plugged too. NEVER use this type filter on a non-race motor that will not be rebuilt every few hundred miles.
Or just oil it properly and keep it cleaned. If you never plan on maintaining your air filter other than replacing it then yes do not get one of these but if you are fine with turning a wrench and keeping your filter properly oiled then get one.
@@n111254789 even when they are oiled they let too much dust thru, say bye bye to rings, valves seats and cylinder walls. An outer wear pre-filter will help but still....they suck.
@@ddrowdy7666 No clue what filter you ran but we've been running UNI's and DNA's for ages now and they work fine. I know some k&n's are supposedly awful, but I never ran k&n so I have nothing to say on that. I used to race dirt bikes and have spent as much time working on them as riding them was always working on a buddies or my own. Did my first top end rebuild when I was 14, and I'm 26 now whether you are racing them or if it's an everyday rider I've experienced no more wear running a well oiled more breathable filter than a paper filter.
"Engineered to provide all the air a stock engine could want when 50% plugged" Absolutely not. Out of the box they are very restrictive. A bone stock engine maybe but stock engines are anemic to pass emissions laws not many people stick with the stock fuel map or stock jetting on a new bike none I know at least no point in paying full price for a larger heavier engine that is choked out and starved for fuel making the same power as a cheaper smaller lighter one that is tuned properly.
Usually when it comes time to change the air filter they get one that actually flows well plus a piggy back tuner for the ecu to increase fuel or jets for the carb.
@@n111254789 Well Jack, I'm sure your 12 years of experience flat smokes me....I mean....I've only been riding dirt bikes since 1968, tore down my first motor (little Briggs and Stratton)when I was 6. Just a little bit of mechanical experience auto mechanic, US Army Helicopter mechanic and FAA licensed Aircraft technician. Raced just about every type of off road Motorcycle racing there is PLUS a bit of time as crew chief of a stock car pit crew and did a little bit of drag racing too but hey.....I bow to your superior knowledge.
@@ddrowdy7666 you pee'd further.👏🏻
My klx has a normal dirt bike style filter. Still not tooless entry tho
Why aren't you changing the velocity stack? With a high-low silicone type? No point in doing your mod when the velocity stack is the choke point!!
Do you have to change the oil weight? Probably want something more thick to even out that power to the lawn mower engine
4:50 a squished cylinder is not the same volume as a perfectly round one. imagine a toothpaste tube... what happens if you squeeze it?
Shhhhhh
basic science more air more dust
Wanna sell the snorkel been wanting to get the 300 one to upgrade my 250?
I dont understand the claim 200% more air. Dna says the filter increases flow by only 10% over the stock filter. So basically, you wont get anything extra than 10% increase in flow. It doesnt matter if you increase the air around it by 500%, it will only increae flow by 10%. Since 10% increase in flow efficiency is not that much, why do you think the snorkel size needs to be increased so much. Perhaps at it is, it already provides that 10% of air increase that it needs around it.
You will only reach the maximum flow of the DNA or any other filter if the flow to it is unrestricted… if the inlet to the air box is small this creates a restriction and flow inefficiencies due to turbulence. The larger snorkel is less restrictive and significantly reduces turbulence in the airflow allowing air to reach the filter more freely. Whether it needs to be as large as 3” I’m not sure… but it would be possible to optimise this using Bernoulli’s principle of flow if you wanted… or you just fit the largest inlet in the space available 😉
@@jonathaneasen9630 that i understand but the dna filter only increases 10% so it won't do more than that. Not sure if is worth the hassle. Just doing the snorkel mode makes more sense and not buying the filter (only 10% benefit). For mt07, the dna filter adds nothing performance wise eventhough the filter efficiency is increased 30% with it but doing the snorkel mod has been shown to be be beneficial by most tuners.
@@trailrider1980 I agree with you I personally wouldn’t use an oiled cotton filter such as DNA or K&N especially in a dusty environment after the horror stories you hear of dust getting through and killing engines. Dual stage foam filters are supposed to be better but still require more maintenance than a paper filter. I recently bought a CRF300L and plan to do the snorkel mod and then decide whether to stick with a paper filter or change to something like the Twin Air foam filter
Ok, but why don't you just remove the side panel since the air filter stays in place even without it?
Or maybe drill some holes in it...
Water would get into it more easily.
You need to dyno test it.
You could, but this mod would show zero improvement, so not much fun.
Jake, I like your channel and the videos you making showing us what we can do to upgrade bikes you own. On that note, seems you loose touch with your fans because alot of the parts you use are in some cases, extremely expensive. Its not realistic doing these kinds of upgrades when most of us here are on a shoestring budget. I would love to see you do a complete upgrade with parts you bought with your own money. Like this comment or hate it, its the truth.
Well, see what he does... and then find alternatives you can afford? Granted, if you're short on money... what are you doing with a nearly-new CRF300L? ;)
It took me three years of saving to buy my current bike cash. I’ve had it for a year and now I’m going to add a few mods I’ve been saving for. Next year I will do more. We all can’t just shoot a parts cannon at our bike in one go but with patience you can get it where you want it. In the mean time, you still have a bike you can enjoy. ✌️
@pureforce56 ehhh, he's had the bike for like 8 months. Yeah, parts are expensive but who else is going to go into this much detail building the bike? He's done this with all the bikes I've watched him build, he also rides the shit out of them. Of course companies wanna throw parts to him. Personally, I've had my bike for 5+ years and still haven't done all I want to it. Life gets in the way.
#RocketDust #DNA_FILTERS #CAWB
3:55 I have a giant gaping hole for you, Jake.
Klx people commonly lose the whole air box lid. It’s supposedly worth like 15 hp just losing the air box. Like you said in your other video I’m sure that’s only making the lean condition even worse
Sikaflex 11FC
Skeet skeet!!!
Ahhh. WTF? I should have known your not from the US. I love what you’re doing but dammit. The US is behind the times. DNA filter is such a good idea. But for me importing it with supply chain issues. It will be an antique before I get one not to mention shipping. You guys always seem to have better access to mods for all bikes other than Moto. The US. IS ALL moto. I’m pissed. I like this bike it has potential but an trying to fix it will be a slow ongoing process
And to add to this. I totally agree. A paper filter on a dirt bike is so ridiculous. But in Hondas defense probably 90% duel sport riders are 90/10 and that isn’t ten percent road. Lol
Please add one mod at a time and then dyno it. Especially for the air box and filter change out.
Result: The engine will go to lean
Keep watching
Son unos XXXGIRLS.Uno de los mejoress conciertos Mañas no 7 se l 💯💞😍
This is ridiculous, its 124.50$ and your pushing this product? Unlike you jake we have to pay for our parts and dont just get them sent to us to make commercials for these over priced parts. Is there a cheaper alternative for people that cant afford a really expensive air filter?
@Travis Stamper yep, follow his link to buy.
just delete the filter and put a sock over the snorkel lmao
Christ that is over priced, I paid $100 AUD (~70USD) for my DNA filter for my Triumph 1200XE. Shop around and you should see a better price. Or do the cheaper thing and buy the cheapest flat panelled Twin Air filter and use it to cut your own/make your own with a small section of alloy/plastic plate with a single right angle fold in it to make the lock tabs... 30minute job and $30 plus you can carry spares then if you actually ADV ride the bike. Also do not delete the filter and put a sock over the intake boot - the intake boot is exposed to way way more 'dirty' air and has a far smaller orifice. The result will be filthy clogged air filter far more quickly plus far worse flow than stock.
Bikerzbits in thailand sells oem filters for like $7 + tax & shipping....
If you're doing ghetto mods... what are you doing with a nearly new CRF?
No thanks,to much crap for not enough return.
Imagine getting sponsored by a filter manufacturer, promoting their product then proceed to cover it up with yet another filter. Why even take on the sponsorship if you don't dare to use the product yourself.
It cuts down on cleaning. Inside the 300 air box gets pretty dirty so if you are out doing a big ride you would only have to clean the pre filter every second day or so.
@@timjrvine You do realise he will still need to remove and disassemble both filters in order to clean it.
Yeah and then re/over oil a pre-oiled filter.... DNA filters come pre-oiled... gold. Was thinking the exact same; if it only flowed 10% more than a stock filter it sure as heck isn't flowing better than a stock one now with a second oiled foam layer over it.
@@HoagesMoto not totally disagreeing, but with the new snorkel he has greater volume of air coming into the box, so maybe there is still an increase in flow. MAYBE, no way to really know for sure.
@@TXH1138 how would the greater air flow affect mileage?
Almost an useless video.
No dyno because no power gained. Ever heard of "velocity" or Bernoulli? Math class is more difficult than cartoon class, that's a fact Jack.