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Old 04-04-2009, 02:57 PM   #4 (permalink)
winkosmosis
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Quote:
Originally Posted by FastPlastic View Post
Doesn't the channel on race cars fan out at the back, creating suction, to increase down force? That would be counter productive for MPG's. I could see a strait line back may improve things.

What your talking about sounds a lot like a ram-jet engine. Squeeze the air really tight and warm it up with the exhaust, see if you can get some push from it. I wanna say they did that with the P-51 mustang. Got a few extra MPH's out of it.
Sloping the back upward creates downforce just like a fastback creates lift but a fastback is more aerodynamic than a wagon back.
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