OzVMX Forum
Clubroom => General Discussion => Topic started by: Snowy 76 on February 04, 2008, 06:58:23 pm
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What the general opinion, Pod filter for a dirt track project, and filter for Bandido, can get both filters for both bikes, whats the best easiest to maintain etc. Thanks Mark
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For my XT 500 for dirt track I'm going with a K&N pod with a K&N Pre filter bag over the top,3 1/2" Dia . X 5"long
ordered one with a 2" long Neck to give a bit of flow before carby mouth?
for MX I would prefer to use standard Box/ filter .( still cleaning the mud/ concrete of bike from Clarence )
Noel
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My understanding is that K&Ns aren't real flash at actually filtering... If you hold one up to the light, you'll see many spots where the light comes straight through. And even the K&N blurb says that they filter better when dirty, which I assume means that they require some built up dirt to close up those holes...
I do know that my rally car picked up a few HP changing from a Uni filter pod to a K&N, but I'd never be confidant using one on an engine that I expect to operate in other people's dust.
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for offroad use i prefer the oiled foam type eg twin air, moto air and unifilter. they are the only way to go in dusty conditions
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you need to oil even the K&N paper filters before u use them, I'M going with the pre filter bag
as well so you don't have to wash the main filter as much,
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The K&N filters are really great.....at filtering out small rocks and sparrows.Nothing more.In dusty conditions (after plenty of their oil) I found a trail of fine dust in the carb.With oiled foam no talc fine dust in the carb.The filter skin would be a must.
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I would only run a K&N with an oiled foam sock over the top. It's not a bad setup as you get double filtering. You can buy some air filter foam cut it to size and use contact cement to glue it together.
I found that on some of my bikes that don't get used enough the foam filters would disinergrate so I switched to K&N as they last a long time. But I do have foam socks on them.