Quote:
Originally Posted by Sven7
Is there any way to figure out the Cd improvement with my mirror delete, grille blocks and belly pan?
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A measured coast down tests (distance, time, speeds) can give you the Cd - or an approximation of it.
There's a thread on calculating Cd in the aerodynamics subforum IIRC
If you had done such a test with the stock car, you could have calculated the % improvement over stock.
The true goal is not the testing, however
You sure ain't waisting time to mod that Probe !
Radiused bumpers can help reduce drag if they're carefully designed.
But air flow over curved surfaces can also increase drag - the lift force of the Coanda effect working against you.