Quote:
Originally Posted by Schumi
Those 8 little air filters on each trumpet look neat, but I bet you are robbing some horsepower there. I did some back to back testing on a restricted intake with an air filter just like those a few inches ahead of the neck of the inlet restrictor, air filter on vs air filter off, panty hose stretched over the trumpet for a filter.
Huge gains without the cone filter. It was a 110HP motor and we saw an extra 6 HP or so peak without the filter.
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Not as much as you would think. They are very free flowing KN filters. Most Roush engines come with this filter set up. Not as bad as say the filter socks you see on alot of TB/carb set up. I figure even if I lose 8-10 HP on a 600Hp engine its a ton better then sucking a rock or crap down into my intake, lol. I had 100mm stack with out the filters but was was concerned about rocks. The 100mm stacks looked nasty
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