It's directly proportional . The formula for drag is air density x Cd x speed squared x sq ft x .5 . On a hot Bonneville day density is about 82% of sea level air .
John:
Thanks, but I must be doing something wrong in applying this formula, because I get an odd number.
The Cd of the car is .33
The target speed is 155 MPH (24,026 when squared)
The frontal area is 22 square feet
When I use that data in the formula I get: .82 X .33 X 24,026 X 22 X 0.5=71,515. If that's the correct product, what is that number? Or if I'm just making a math mistake, please straighten me out. As you can see, I need a bit of help!
Rick