Here is one of the Chassis Dyno runs for my 2007 Ford Mustang GT, at Paul’s Automotive Engineering. The NASA American Iron series requires a ratio of 9.5 pounds to every one horsepower. This “restricted” pull was tuned to yield about 357 hp at the rear wheel, which will require my car to weigh approximately 3400 pounds at the end of the race. Unrestricted, this 302ci 3v motor delivers around 435 horsepower at the rear wheel.
