Quote:
Originally Posted by curbon
not to be disrespectful, but i've heard that most finely tuned race cars like formula 1 and nascar hoods don't have cowls on them to ram air in through the top of the engine.
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That is true. A cowl at the back window needs to be about 2-3 inches from the windsheild to be far enough away from the high pressure there to actually exhaust air from the bay. Anything too close to the windsheild will act as an air intake, not exhaust.