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Old 06-24-2012, 12:21 AM   #400 (permalink)
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When the car is tapered to an ideal angle for streamlining, then a NACA duct won't work well, because the air is already closing in as fast as it can/should. So, it can't enter the intake very well.

I think the best cooling solution would be to have the intake right on the stagnant point and a smooth duct back to the radiator, and then exhaust the hot air out into the wake zone at the very back of the car.
Sincerely, Neil
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