Online Horsepower Calculators

Yep, but the ET/mph/60ft numbers have been more or less spot on for almost every car I've inputed and known the real numbers for, and the hp numbers have matched with what was inside those engines. I've only managed to better the 60 times given so far. If its off in some way you then use it with your knowledge to see where your off, engine or chassis, its not an absolute, you don't need to know windspeed etc., or if its a truck, you know your mph is gonna be a bit off, its a useful tool if you know how to use it properly.

Where it can go off some is for very light cars and stockers etc.


Here's my Cuda...3000lbs, 599hp, 14x32's, 4.88 gears>

Wallace says
60 Foot E.T. : 1.39
1/8 Mile E.T. : 6.29
1/8 Mile Trap Speed : 108.09
1/4 Mile E.T. : 9.97
1/4 Mile Trap Speed : 134
1/4 Mile Trap RPM : 6,895
Actually ran [email protected] with a 1.388 60ft, 7200rpm trap
and you can see the slightly better 60ft slowed it down a fraction but it picked up 1/100th which is what you'd expect.