Quote:
Originally Posted by razordave
Almost forgot my cowl delete panel. Rainx on the glass and wiper arms in the car just in case.
Made this piece from a fiberglass boat hull I had lying around. You may notice there are 3 levels
Might make a new one down the line from a flat piece of something. Would be nice if I could figure out how to make something curved to create the smoothest possible transition between bonnet and windscreen.. maybe foam and glass
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I performed a complete wiper and cowl delete for Spindletop at Bonneville, and at 98.5-mph, it made zero difference.
A cowl delete plus Dodge Viper windshield reduced the drag of Spirit by Cd 0.005.
I wouldn't expect much, and it will be very hard to quantify.