This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

DNA Air Filters

pollo

pollo

Joined Jun 2008
1K Posts | 98+
Simi Valley Ca.
Does anyone here use DNA air filters on their Enduros? I know it's popular on the motards. It is similar to K&N in construction. I had a K&N on my CR500 dirtbike with good response. The motor breathed better. I know some feel the foam is better for the dust, but you know I am usually out in front of my buddies anyway. :D And most of the time I ride alone. 8)
Pollo
 
Im guessing that they are not to popular on the dirt bikes. Unless I hear from someone, anyone with DNA on their Enduro I just might go with the majority. If K&N had one for Husaberg I would be more inclined also as I have used them before. (Got one on my triuck too).
 
have a look at bergoroadracer's gallery. he has a & N type on his i think although he has moved on since to the conical filter on the back of the carb.

regards

Taffy
 
DNA filters have huge holes in them. some as big as a pin diameter the holes are visible even on a picture they use in magazine adverts.

the filters pass the "standard" test with flying colours because a huge ammount of dust is fed into the test machine in a very short time period.

the large ammount of dust very quickly clogs the big holes and as the filter traps more dust it becomes more effective.

In reality these big holes never clog up and quite big particles of dirt find their way into the engine.

there are a few threads somwhere about guys with excessive intake valve recession after using DNA filters on KTM s they also found grit in the intakes

oiled foam is the best filter system for off road. heaps of tiny oil baths to catch the dirt.just have to make sure that they don't dry out.

I'm not putting any filter on my bike that I can see straight through. more air flow could be good why not put a second foam filter on like some early bergs?

regards
Bushie
 
  • Like
Reactions: 3 people
Thanks Taf and bush for the input. Yes I saw that bergo gallery. That's interesting. You know, we could probably cut open the frame in another area and add more foam filter. The stock foam seems a little small. We could add as much , somewhere near it ,maybe . What do you think?
Pollo
 
Re: RE: DNA Air Filters

pollo said:
Thanks Taf and bush for the input. Yes I saw that bergo gallery. That's interesting. You know, we could probably cut open the frame in another area and add more foam filter. The stock foam seems a little small. We could add as much , somewhere near it ,maybe . What do you think?
Pollo
Click to expand...

Just buy an old Husaberg with the two filters already installed from the factory. They have been there, done that.

There is nothing wrong with the stock filter, and air flow is not an issue. Don't you hear the intake every time you open the throttle? Doesn't sound like it's choked up, does it?

Replacing a oiled foam filter with a fabic filter like a DNA or a K&N on a dirt bike is a step backward, unless you like replacing valves, rings, and pistons.
 
closerfilterinframe.jpg




completecarbportrait.jpg


this is what you need :wink:

Taffy
 
Re: RE: DNA Air Filters

Johnf3 said:
pollo said:
Thanks Taf and bush for the input. Yes I saw that bergo gallery. That's interesting. You know, we could probably cut open the frame in another area and add more foam filter. The stock foam seems a little small. We could add as much , somewhere near it ,maybe . What do you think?
Pollo
Click to expand...

Just buy an old Husaberg with the two filters already installed from the factory. They have been there, done that.

There is nothing wrong with the stock filter, and air flow is not an issue. Don't you hear the intake every time you open the throttle? Doesn't sound like it's choked up, does it?

Replacing a oiled foam filter with a fabic filter like a DNA or a K&N on a dirt bike is a step backward, unless you like replacing valves, rings, and pistons.
Click to expand...

depending on conditions the little filter clogs up pretty quick compared to bikes with more area. clogged foam filter = less airflow and more chance dirt finds its way through.

so jet with something like a 140 main and hope the filter is clogged up and jetted right at the end of the race? or go for more area.

I'm putting another one on in front of the existing one and making a 10L aluminum tank. the 08 tank is very thin walled but still fat and rubs on the frame it'l have a hole soon.

bigger filter is good! australia is the oldest flattest continent and has the finest dust. SFA rain too.

regards
Bushie
 
RE: Re: RE: DNA Air Filters

Well I do like the idea of that conical direct carb mount filter. Also the modified frame with extra foam.Maybe just a little extra, like half as much more. For now i'm going to keep the stocker. It needs to be checked frequently. Running it to dirty hampers it . I clean and oil every other ride or so even when mildly dirty so the motor gets a fresh breath of air. And I don't want an old Husabeg for the extra filter Johno. I already have 4 bikes and no more room right now.
Pollo
 
Good information ,and this set me straight ,i'll stick with my little foam buddy.



2008 FE450

CHILLIWACK B.C.
 
The stock foam one is great and easy to change on the Husaberg. If scared it will getting clogged with dust and stuff during a ride carry a extra in your jacket or pack. They the lightest extra part you can carry(oiled up in zip lock they are great extra padding). Clean the foam on the seat and frame like you'd clean a air box and it has great flo.
 
Ok, im picking up this thread I started in 08.
Apparently they still make these K&N type DNA air filters.
On my FS650 I would consider trying one out if its true it increases air flow. They say 14% increase even with the top of the filter not having the flow.
I am not going off road with the bike so no dirt.
Anyone have this type of filter on their FS?
I believe the K&N oil has longer life in its filtration than the Twin air oil. Am I right? Or is it irrelevant?
But increased air flow is what Im more interested in Without doing the rear mod. I will just keep it how it is with stock filter its not worth it.

pollo

pollo
 
I have one in each of my 70d bikes all are great. On one bike I use in the dirt it was scary how dirty it was but when I took it off the inside look great. Thing is with K&N and DNA you have to use there oil. if you use foam filter oil doesn't work you'll ruin your motor. I use K&N oil on my DNA filters with no problems. Just do what the instructions tell to do for the oil. Didn't notice any power gain though. Also have a K&N on my 87 Husky been on the bike for 29 years
 
Last edited:
I have thought of the K&N type because I'm sick of the foam ones deteriorating in bikes that don't get used often. the K&N type seem to last forever. I don't think it's possible to get more air without more dirt.


https://bobistheoilguy.com/air-filtration-test/ Has some interesting findings according to their tests K&N type and foam had the same filtration.
 
I have the Volant K&N filter system on my Chevy SS truck. Works great and less maintenance..
I know the foam filter oil seems to feel a little dried up after several months.
I go 10k plus miles on a cleaning on my truck filter.
 
I have dna on my supermoto/iceracer and I had a k&n in my cbr1000rr. I find them easy to clean and as they are made of cotton you can clean them with fuel if your out of cleaner.
I like them but I keep using foam on my enduro because that is changed after every day as that type of driving is so dirty (unless it's in the winter/snow as then they stay clean longer).
 
Disposable/reusable foam pre oiled filters. Easy, Cheap and they work.... Buy a bunch, pre oil, keep in zip lock bag and throw away or keep clean and do again.
 
My 86 Husky 400 took it out after maybe 10 years of not riding it went to oil the foam filter it had turned into sand fell apart in my hand. Took 6 months to find a replacement didn't try very hard but at one point I even tried making one and failed. Point to this is K&N and DNA last indefinitely. Cleaning them You have to wait for them to dry before reusing it. Expensive but well worth it. Got them on most my bikes and both of my cars. If any one wants some foam filters from 70d bikes I have a some you pay shipping that all? Is there anyway to keep a foam filter so it will last longer?
 
Agree totally with bush it all depends on the condition you are running ...I have never seending a motocross race k&n filters only spunge ...but if you riding mainly on the road k&n could be a better choice for more flow ...I will be going soon dual exhaust lectron 44 and head ported ...the way I see myself to increse the air filter surface is to build an air box....I would personally stick with spunge is great overall need more maintenance but it keep the engine safe better then other
 

Similar threads

Taffy
New - improved carb needle 2004-2008
Replies
3
Views
2K
FlyingZebra
FlyingZebra
O
Opinion about carburator jetting after akrapovic exhaust and DNA air filter
Replies
4
Views
1K
onyx
O
Taffy
Dell orto - just about everything was wrong....or was it the needle all along?
Replies
32
Views
8K
Mazzokie
M
R
New To Me FE390 Maintenance Insights
Replies
24
Views
4K
robinasu
R
B
DNA air filter
Replies
2
Views
1K
bushmechanic
bushmechanic

Register CTA

Register on Husaberg Forum! This sidebar will go away, and you will see fewer ads.

Recent Discussions