Not that simple. A lot depends on how the two cars hook and launch, and the torque put out by the two different engines. HP is what we all talk about, but torque is what wins races.

The old rule of thumb was, for every 100 lbs you remove from a car you pick up one tenth second et, so 1000 lbs less equals 1 second faster time. Beyond that, my mathmatical skills run out.

Don