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Prowler Online Dyno

Input the Weight and 1/4 mile Trap speed of your vehicle and press calculate.
Our Calculator will generate its rear wheel horsepower.

Vehicle Weight
In Pounds
(e.g. 3200)

1/4 Mile
Trap Speed
in MPH

Your Rear Wheel
Horsepower
is:




E.T. Calculator, You supply the Weight and Horsepower.

Our calculator will generate:
The elapse time your vehicle should run and its trap speed in the 1/4 mile.

Vehicle Weight
In Pounds
(e.g.3200)

Rear Wheel
Horsepower

Estimated
E.T (sec.)

Trap Speed
in MPH

   
Note that the elapse time is the approximate time your vehicle should be running. Although many factors influence elapse time the main factor is traction. Usually if your vehicle does not have enough traction your elpase time will be higher than the estimated. The other extreme is also possible, and usually occurs when you are using racing slick tires. The horsepower calculation is correct by the definition of horsepower. Horsepower is a measure of the force required to accelerate a weight to a known speed in a know distance. So the generate horsepower by this calculator is the actual horsepower at the rear wheels.
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