Quote:
Originally Posted by radioranger
Cobra daytona coupe or ford GT both with hood venting and pretty darn fast daytona coupe was reported going over 190 on the british M1 highway i think they called it and reportedly was the reason the road got a speed limit! so if you can pick up almost 30 mph with the same engine combo , the aero cant be that bad,
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According to Hucho's text reference to the research of Buchhein, et. al., the over hood venting is far and away better than any other venting. It is widely used on race cars, but isn't very practical for street cars, since it dumps lots of hot air right into the climate control intake at the windshield base. But the delta Cd is .010 better than underneath or wheelwells.
The no compromise Lotus Elise uses top venting. Not sure where they pick up their cabin air intake.
I've toyed with trying the arrangement on my "test" Insight. I think I see a way to get clean cabin air through the fenders with NACA ducts. Big project and not sure when/if it gets done.