How much HP from SBM ProComps? Well... 670HP!

toolmanmike said

Just to show how skewed the calculators can be I plugged your specs into the Wallace Calculator. Speed and weight got you 579 hp. ET and weight got you 680 hp. Now if the calculator were a accurate measure, both HP numbers should be close to the same. The same engine on 2 different dyno's net different results.

Click to expand...

I never use ET to calculate HP. ET is hook and MPH is horsepower. Way too many variables in ET to use it for an accurate HP calculation.

When I looked at Pittsburgracers numbers I noticed his ET was really good for his MPH. Now that he posted his gearing and gear box it makes more sense.

For any given MPH there is a minimum ET. The closer the two are, the better it is.

As an example, a car that runs 12.00 at 140 didn't hook but made an *** load of power.

If the car went 12.00 at 90 you know it's down on power and hooked up.