best airfilter set up

[waycott_259]

i was wonderin if a uni air flilter and a k&n power lid is alot betetr than a stock set up? will i notice more power and is that going to let in exrta dirt or less?

[ryanh250ex]

just ditch the lid.

with frequent cleaning and re-oiling you'll be fine in terms of dirt.


i am currently running no airbox and a UNI filter.

[GPracer2500]

Originally posted by ryanh250ex
....no airbox and a UNI filter.

That's the settup I like too.

[04TRX400EX]

I like K&N with an Outerwears. Good air flow and the Outerwears helps prolong cleaning intervals and keeps out dirt and water.

Originally posted by ryanh250ex
just ditch the lid.

with frequent cleaning and re-oiling you'll be fine in terms of dirt.


i am currently running no airbox and a UNI filter.

i was doing that but when i wash my 4 wheeler i have to dry the filter :mad:

[GPracer2500]

Whoops. I may have missread....

What I ment to say is I run and like no airbox LID and a UNI.

[xtullyx16]

why not k'n?

[GPracer2500]

In my experience, K&Ns let too much dust through. Foam filters don't have that reputation.

I mostly ride in dusty conditions (dunes and AZ desert) and didn't have good luck with K&N. I used one for several years. When I tore my engine down there were tell-tail signs of particulates getting sucked through. I serviced my K&N after every ride (even when it looked fine) and used an Outerwears. 98% of that time I ran an airbox lid with maybe 15 of these little UNI filter plugs in the lid:

http://www.dual-star.com/index2/Images%20JPG/UNI_FILTER_VENTS.JPG

When my machinist (who has a lot of experience with desert machines--he races Baja and can even be seen in Dust To Glory) looked at my cylinder and intake valves the first thing he asked was, "do you run a K&N?"

If I hadn't took my engine apart for reasons unrelated to the wear that was found inside, I may never have known [shrug]. The engine still ran well and made good power but there was preventable wear taking place nonetheless.

I wouldn't necessarily have a problem running a K&N in non-dusty conditions (especially if I didn't expect my cylinder and intake valves to last 20 years) but just assume run a UNI regardless. I'd run a K&N on a street motorcycle without hesitation.

Opinions vary widely on gauze vs. foam filters. I just know what my experience has been....so that's my $0.02.

[250r4life]

where about in AZ are you?


i personally prefer the K&N over the UNI for various reasons... JMO...but my set up is a K&N with an outerwear, and i run no lid but i also run an airbox lid outerwear... the set up is great... anything that gets to my filter has to pass through two outwerwears, and i am meticulous about servicing my filters and swap them out each day down at the dunes...

[ryanh250ex]

Originally posted by Kickstarts_Suck
i was doing that but when i wash my 4 wheeler i have to dry the filter :mad:

put a ziploc over the filter stoopid :rolleyes:


I have never had a problem with any of my uni filters. Sure you could run a K&N, but then you have to worry about sucking up dust...and then you can run a Outerwear, but for less money and same if not better airflow, why not just run foam?

as i understand it the K&N's are better for the dunes, although they suck at filtering dust.

on my 4x4 Jeep i also run a 11" UNI cone filter.

[ohsobad_chevy]

Originally posted by Kickstarts_Suck
i was doing that but when i wash my 4 wheeler i have to dry the filter :mad:
Keep the lid and put it back on when you want to wash it.;)

[GPracer2500]

Originally posted by 250r4life
where about in AZ are you?...

I'm right around the corner in Chandler.

[250r4life]

right on... which dunes you usually hit up? gordons, buttercup, or glamis?

also, where do you usually ride at? i hit up the dunes, butcher jones, sycamore creek, and four peaks, and et motopark, but other than that i dont know a whole lot of other places to ride... am always looking for new spots- you know of any?


as for the air filters, one of the things i like about the K&N is it is a lot less mess than the UNI. the UNI is a pain in the butt to clean, and its messy to put on with the oil and everything...

in regards to dusty conditions, when its way dusty i usually go by myself so i dont have to worry about eating dust, and it there are others, im usually in the lead... other than that the tracks are usually watered down, and me and a few buddies always go out after a good rain storm, which doesnt happen too often since i live in AZ...