The amount of fuel in the car can make a huge difference... The lighter the car and the less torque, the more difference it makes..
This is no where more obvious than in F1 racing. Watch those cars when they are right off the starting line and depending on their fuel strategy you can definitely see a difference in the speed of the cars. They can save anywhere from a few tenths to a few complete seconds off their lap times when running on low fuel. 2 seconds is a long time in F1.
Looking at some of the numbers on dtmpower there are stock m3's with anywhere from 205-220 horsepower at the rear wheels.. I think most of them at at or below 210. The DASC is under 190. Add in a lack of LSD on most of our cars and the M3 is winning. I'm sure a properly done suspension, lsd, frame bracing, brakes, clutch, exhaust, etc... and the Ti may run with the M3 if it doesn't edge it out slightly. Dusten with 9psi or the S3 DASC on understeer.com could probably hang with an m3.
You would run less gas if you are drag racing. On a track you want to make sure you tank doesn't get to empty or you can starve the engine in corners. |