technically, horsepower is a function of mass and velocity, but the problem with those calculators, is they are assuming perfect conditions. traction, air density, elevation, temperature...none of those are factorer into the calculation. i have entered my car's specs into several of them, and theyre all int eh same ballpark...ranging from 457-471 horsepower...
yeh really i have an ls which is about 140 hp or a lil more and i ran about 15.8 in my ls and thats with the missed up head and the car over heating lol. soo i really think the site is bs plus the driver is a big difference.
the calculator at race-cars.net is similar to this one, but uses the function to calculate power...but if you race on the strip enough, you should know if youre getting good traction...but at the same time, it can be a bit vague...for instance my car runs 12.70s at one track, and 12.60s at another...external stimuli cannot be factored in, but these give you a close estimate...my brother has dyno'ed his car and used one of these in comparison, and the two numbers were within 15-20 hp of each other..
yep, BS. I entered my car's weight and quarter mile time and it said that I must have 221hp. In fact, my car is factory rated at 192hp. I also don't understand why they don't ask for torque numbers in calculations
Hp and 1/4 mile calculater
