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Old 04-13-2013, 02:41 PM   #28 (permalink)
aerohead
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these

Quote:
Originally Posted by riddleyo View Post
I think he is talking about these. I've seen them used in autocross to impart downforce on the rear tires, but if they are properly sized, it may create the "Phantom Kammback" effect we are seeking.
Thanks for the images.
Since the context of the photos is 'auto-crossing',then I'm presuming that the racers are trading speed for downforce (since highest attained speed in autocross is relatively low in comparison to other track racing).
Every example shown would incur a MPG penalty.Careful 'tuning' of size and angle could achieve a drag minimum at zero-yaw,but in a crosswind the benefits would be dubious.
For $2,000/hour,at Lockheed-Marietta you could find out.Eventually.
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