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Old 09-01-2011, 02:28 AM   #87 (permalink)
Otto
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Quote:
Originally Posted by orbywan View Post
I hope that's true Otto, I'm going to find out I guess. Do you think it's possible there is not enough vent area on the pans to let the frontal air out? Thanks.
Well, if the frontal air cannot get out, it won't go in, so I'm not too worried about that. Still, if you want good exit geometry and flow-through synergy, study tuna or shark gills, or Google pics of the Arnold AR5 sportplane cowling, best in the business.

Before you did all that beautiful belly pan work, the airflow under the car had lots of obstructions and turbulence, so a chunk of it it piled up in front and spilled around the sides rather than hit the wheels at, per Hucho's Calibra picture, a blunt angle. Now that the belly is smooth, you have a net reduction in overall belly drag, but I suspect perhaps an increase in wheel drag, due to more air going past and for lack of wheel fairings. Not to worry, this too shall pass.

Also, brake cooling worries aside, why not try the pizza pans, at least on the open road, if not on mountain roads?
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