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July 30th, 2008, 04:23 PM   #1
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DNA Air Filters

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. And most of the time I ride alone.
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July 31st, 2008, 05:05 AM   #2
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RE: DNA Air Filters

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).
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July 31st, 2008, 07:04 AM   #3
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RE: DNA Air Filters

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.

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July 31st, 2008, 09:16 PM   #4
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RE: DNA Air Filters

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?

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August 1st, 2008, 05:14 AM   #5
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RE: DNA Air Filters

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?
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August 1st, 2008, 06:09 AM   #6
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Re: RE: DNA Air Filters

Originally Posted by pollo
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
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.
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August 1st, 2008, 07:15 AM   #7
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this is what you need

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August 1st, 2008, 03:20 PM   #8
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Re: RE: DNA Air Filters

Originally Posted by Johnf3
Originally Posted by pollo
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
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.
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
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August 1st, 2008, 07:44 PM   #9
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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.
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March 3rd, 2010, 05:54 AM   #10
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Re: DNA Air Filters

Good information ,and this set me straight ,i'll stick with my little foam buddy.



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