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' HVAC cowl inlet openings '
* The ventilation systems are 'closed' during wind tunnel, and CFD testing of production cars.
* A 'separation bubble', should it exist there at the cowl, will just travel along with the car, with laminar flow following over it, and reattaching, as if it didn't exist.
* I completely covered this area on Spindletop, and it showed no measurable effect at top speed at Bonneville.
* Covering this entire area, plus adding a more streamlined Dodge Viper Coupe windshield only improved drag by Cd 0.005 on Spirit of EcoModder.com, at the DARKO Wind Tunnel.
* I recommend that you look elsewhere for savings.
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Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
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