Quote:
Originally Posted by aerohead
That use of the template would violate the ground reflection, mirror image, and fineness ratio, blowing the Cd all to hell.
There's only one way to use the template.
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In another recent thread you mentioned no need for rear diffuser if the underbelly behind the rear wheels were at 2.8 degrees or less.
I assume this rule of thumb is for a range of heights normal to road cars, let's say between 4-8 inches?
The template posted through improperly used by the article's author has a rear departure angle of approx. 2.8 degrees, right?
Right answer using wrong method, or does that Miata need a rear diffuser for an un-yet stated reason?