Horsepower Caclulator

Here's a simple calculator to figure out flywheel hp. All you need is weight, 1/4 mile time, and trap speed.
http://www.dragtimes.com/horsepower-et-trap-speed-calculator.php

Another site with a lot of different calculators
http://www.measurespeed.com/

 

Last summer I did a 1/4 mile in 15.7 sec at 87mph. Just weighed my truck today with me in it and it comes in at about 6400lbs. When I ran the 1/4 I had the tailgate off, an almost empty tank, and everything out of the cab, so i guesstimate it at 6100lbs.
that gives me.....

312hp at the flywheel! I need run it again now that I've got it tuned better, redneck chimney mod, and K&N filter.

 

fixed it

 

good

 

Did you figure out your hp??

 

idk my dam 1/4 mile time , trap speed , and weight!

wtf is trap speed anyways

 

Trap speed is how fast you're going at the end of a 1/4 mile.

 

ah hh