Foam Or ?

[FoxBansheeRacing]

Right now I have a clamp on K&N filter on my shee. It is the metal screen kind, not the foam. I ride mx, and I have been hearing that the foam is the kind to have unless you ride in sand, which I dont. Will I be able to tell a noticeable difference in switching to foam? If I will where can I buy one of these filters? I was trying to look for them but the site I normally buy from is down right now..

[sredish]

The K&N breathes better than foam, so the K&N is better for performance. There is some that say they let more dirt in the foam, and some say they don't. I'm part of the they let dirt in club. When I use foam, I have to clean more often than with the K&N, so my theory tells me that the foam catches more dirt.

 

I don't know. If your concerned with the power, and wanting the most performance, stay with the K&N. If your concerned with the cleanliness, or if your in an exceptionally dirty environment, then consider the foam.

 

Scott

[Meat]

does anyone know why bike motorcrossers use foam filters exclusivly ? Ya'd think if K&N offers a performance gain over foam, 100% of the pro mx racers would be using K&N, but they dont. Ya'd think maybe 50% of the pro's would use K&N, but they dont. 25%, nope, 5 % maybe... nope. Its more like 0%. Why is that ???

 

Now ATV MX guys use K&N filters, but they dont have the professional mechanics that the bike guys have, ATV MX pro's usually have a freind or relative as thier head mechanic.... I just wanna know why the bike guys dont use K&N, there has to be a very good reason. They use FMF pipes.... and V-Force reeds.... and all kinda aftermarket parts, but Iv never even seen a K&N made for a modern MX bike, and Iv never seen a K&N sponsor sticker on any dirtbikes either. Everyone usually runs a UNI or a Twin-Air.

[Aussie Quad Racer]

when switching from clamp on k+n to clamp on unifilters i had no differance in performance and jetting changes where not required

[sredish]

I run a aftmkt service for diesel motors, mainly pstroke, dmax, and cummins. Its a very very small company, however, I do a lot of research with different companies to find out what works and what doesn't. With the trucks, its proven that the k&n does not filter like the gauze type filters or some of the other filters. They breathe really well to begin with, but after they have some dirt on them, their breathing goes way way down. A gauze type filter breathes really good, just not quite as much as a k&n, however, as the gauze gets more dirt on it, the breathability is barely reduced, in fact, it can become quite saturated with dirt and still breathe almost as good as when it was clean, where in this situation, the k&n is stopped up. I haven't really seen gauze filters for atvs, but I wish they'd start producing. The baja trucks and such use gauze as their filtering, I guess unless they're sponsored by k&n.

 

I believe this is the reason the pro bikes don't use the k&n, due to the fact that they quit flowing much quicker. The foam will continue to breathe when somewhat dirty, where the k&n won't. Not too mention, the k&n will allow fine dirt particles through, especially when not oiled properly, which alot of poeple are guilty of, especially in the truck world.

[2001SSTBanshee]

I run a aftmkt service for diesel motors, mainly pstroke, dmax, and cummins. Its a very very small company, however, I do a lot of research with different companies to find out what works and what doesn't. With the trucks, its proven that the k&n does not filter like the gauze type filters or some of the other filters. They breathe really well to begin with, but after they have some dirt on them, their breathing goes way way down. A gauze type filter breathes really good, just not quite as much as a k&n, however, as the gauze gets more dirt on it, the breathability is barely reduced, in fact, it can become quite saturated with dirt and still breathe almost as good as when it was clean, where in this situation, the k&n is stopped up. I haven't really seen gauze filters for atvs, but I wish they'd start producing. The baja trucks and such use gauze as their filtering, I guess unless they're sponsored by k&n.

 

I believe this is the reason the pro bikes don't use the k&n, due to the fact that they quit flowing much quicker. The foam will continue to breathe when somewhat dirty, where the k&n won't. Not too mention, the k&n will allow fine dirt particles through, especially when not oiled properly, which alot of poeple are guilty of, especially in the truck world.

 

Your Talkin my language!! I have a F-550 powerstroke with the Western Diesel RAM air. It came with a big foam filter and I upgraded to a dual element foam just for more protection (especially for my BB turbo!)

 

I dont like K&N either. I've always pointed out that pro's are not using them like Meat said. Ive seen oil annalysis on diesel trucks proving that K&N lets more dirt into the oil. Thats enough for me. Foam on my truck, Foam on my ATV's and Foam on my dirtbike.

[lucky13]

pro design os the only way to go

[frocashmoney24]

i run a k&n at te races, and i have only seen 1 guy on a dirtbike race with one, and he spanked em all

[bigwill]

A dirtbike engine builder told me the K&N will flow more at the expense of your crank.With foam you have the filter oil which helps keep the crank lubed and catches the fine particles that kill the crank.

[2001SSTBanshee]

Filter oil isn't supposed to lube anything, just catch dirt.

If your sucking oil in your using too much.

[sredish]

(especially for my BB turbo!)

Very very nice. I just sold my totally macked out 7.3 for a new 6.0. I'm just getting started on that thing.

 

I'm a dealer for Western Diesel and Diesel Performance Parts (DPPI). Through these two, I can get about anything. Holla if you need something, or just want to get rid of that piece of crap BB turbo...

 

i have only seen 1 guy on a dirtbike race with one, and he spanked em all

 

I doubt the reason he spanked em all was the difference of an air filter.

 

Scott