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Old 07-14-2008, 06:56 PM   #8 (permalink)
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Originally Posted by Vince-HX View Post
What is the optimum angle for the diffuser?

I'm thinking I could make one that spans the gap from my lower rear cross member to a few inches after my rear bumper. The bumper will most likely have to be cut a few inches up.
The diffuser cannot have an up-sweep angle greater than 2-1/2 degrees without flow separation.
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