Online Horsepower Calculators

Yeah if I use that calc on my numbers it says 484.01 fly hp. Now if I use my calc........

http://www.wallaceracing.com/accel-calc.php

I input 3000lb, and play around with the hp till I get what my car ran ET/mph, 10.7@125 I get, 484hp on that run, thats deff Flywheel, with no 10% loss rule which is inconsistent for every car as we know, its fly hp you wanna know for tuning purposes, who cares how much it made at the rear wheels, at least thats my philosophy, unless your running a stocker then everything matters! And that is why a dyno is pretty much useless for anything but tuning/development purposes, that you can do at the track, just takes a bit longer to find the right combo that way, but its somewhat cheaper, unless your on race fuel, but a whole lot more fun.