Quote:
Originally Posted by ToyotaTechGeek
^ yeah that is the same thing they sell at Auto Zone.
btw: that air filter appears to be too small. i'd be curious to know what sort of CFM numbers you get with that thing.
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....Its a daily driver, not a race car. I dont particularly care about performance, although I get high 30's and occasionally low 40's whenever I average fuel economy.
If it somehow is affecting performance, which I doubt it is, I would say it is possibly restricting 1/3 to 2 horsepower.... So I dont care enough to change it out. When I do auto-x it it does fine, I can post times as fast or faster than our local STi.
Sorry if I sound like an ass, just the average CFM an air filter pulls just seems so trivial to me. But then again I am not looking for every last hp I can find.
EDIT ::
We did do a test on Rx7Club years ago to find the average CFM a 12a could swallow. It wasnt much, considering I have stock injectors, stock intake manifold and the stock throttle body, I can promise you it is receiving all the air it needs. Adding an Air filter that far outflows the stock airbox doesnt add much power because the car will breath in only as much as it needs, and with the stock intake, afm, and injectors... It doesnt use much, if any more than the stock airbox would provide. Really? Do any of you honestly think Toyota would have put such a restrictive airbox on the car that a cone filter would magically free up a ton of power?
That said, I have a cone filter simply because my stock airbox was full of rust and the rubber intake pipes were dryrotted and cracked. The cone filter was a cheap and simple fix. And it frees up alot of room to work in.