Dirty Air filters and hp
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Join Date: Oct 2003
Location: NJ
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Dirty Air filters and hp
Maybe an obvious question but can a dirty air filter lower hp? By how much?
The reason I ask is that I dynoed my G yesterday and only reached about 220hp at the wheels. I did go to a special AWD dynojet here in NJ. The guy that did the pulls owns a sedan. Said he got 235 stock. He wasn't a believer in the Stillen Hi-flow. He didn't notice any gains with the Stillen CAI.
Anyway not to start that war here... but when I went home I removed my Stillen and replaced the stock airbox. The K&N on the Stillen was pretty black all around. After I got the stock airbox in I took a drive and the G felt a little more torque. I just ordered a K&N filter for my stock box. Gotta go back and dyno again soon.
The reason I ask is that I dynoed my G yesterday and only reached about 220hp at the wheels. I did go to a special AWD dynojet here in NJ. The guy that did the pulls owns a sedan. Said he got 235 stock. He wasn't a believer in the Stillen Hi-flow. He didn't notice any gains with the Stillen CAI.
Anyway not to start that war here... but when I went home I removed my Stillen and replaced the stock airbox. The K&N on the Stillen was pretty black all around. After I got the stock airbox in I took a drive and the G felt a little more torque. I just ordered a K&N filter for my stock box. Gotta go back and dyno again soon.
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Join Date: Oct 2003
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A while back when I had my Civic dyno'ed, I figured I'd replace the "cone" filter and re-dyno while it was on the dyno.. the filter was way worse than what Xman's looked like.. mine had caked on black crap and the filter was pretty old (not to mention I didnt have the inner fender cover so the filter was pretty much exposed to road grime kicked up from the front tire).. anyhow, after I re-dynoed (in the matter of minutes), I made about 5whp through the whole RPM range..
So I think the answer to the question, like doogie said, is "maybe".. if your filter was as bad as mine (which its not), then I'd say you could easily lose a fair amount of horsepower..
So I think the answer to the question, like doogie said, is "maybe".. if your filter was as bad as mine (which its not), then I'd say you could easily lose a fair amount of horsepower..
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master111
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