All you'll need to know are transmission gear ratios, differential gear ratio, and tire diameter. Always measure tire diameter with the tires at proper inflation and mounted on the car, because ...

Calculating gear ratios is easy, knowing the engine performance curves is a bit more work. Baeocystin and caustic meatloaf both posted useful links.

And in the past you've published formulas for the relationship between miles per hour (mph), axle ratio, engine revolutions per minute (rpm), and tire size. But where does the "336" constant in ...