There are couple of things that calculators don't know. In my book number one is power under peak. Strong power under peak will accelerate the car quicker with the same peak power. It's also possible the combo may have less peak than calculated. As for MPH a small frontal area sleek car is going to be better than a large boxy sedan. In my case my car has piked up .3/4 mph since it's initial outing with an air pan, chassis and converter tuning. Timing, jetting, haven't made a significant change.
Doug
So so true.
If you are really looking for what might be produce the best et/mph, you would not necessarily be looking at peak power numbers. And as you suggest, working the numbers backwards from track data may skew the comparison.
We spent a week trying stuff on the dyno. What is in my car has a peak power that is about 13 -15 hp lower than the best we got with a different combo, but average power was a bit better. That will effect a calculator.
