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Old 03-08-2009, 10:14 PM   #26 (permalink)
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Join Date: Dec 2007
Location: Upstate SC
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Aerocivic - '92 Honda Civic CX
Last 3: 70.54 mpg (US)

AerocivicLB - '92 Honda Civic CX
Team Honda
90 day: 55.14 mpg (US)

Camryglide - '20 Toyota Camry hybrid LE
90 day: 62.77 mpg (US)
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Originally Posted by naturalextraction View Post
That cuda with a 318 four barrel at highway cruse it achieves 27mpg. I'm sure with a solid underbelly pan, and wheel fairing, lexan for the back tail light area, etc, I can get it over 30+.
One way you can determine your car's potential mileage increase via aerodynamic drag reduction is to notice what your mileage increase is when you are drafting another vehicle. Since when drafting, the only thing that has changed is the reduction in wind drag and its effect on lowering your engine's loading (rolling resistance and engine rpm's are unchanged), the mileage you get while drafting is the mileage you could get by lowering your car's Cd.

The Cd on my car is now so low that drafting results in little change to my car's mileage.
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