Originally posted by icon
993power:
it would be great to see some real tests done besides magazine tests. you did mention "dust" which would indicate minor penetration through the filter unit (which i'm assumed is oiled properly, etc.) but without harming the lining of the piston or sleeve.
just some constructive advice for further tests would be comparison of effectiveness on asphault and dirt tracks. if the engine can make it through a main without breathing in particles then i'd say the filter is effective enough. also if you can post some pics of the sleeve & piston after running the tests that would really be awesome.
manticore:
although i do have my doubts of K&N filter's effectiveness, i do reserve judgment until more tests are done.
if you did trash the K&N filter the same night, it would have been great if you took a pic of the engine internals that it destroyed: as that is the only reason i could think of to throw something away as garbage.
doesnt need to strip down the engine, fine dirt are all over the carb intake