Straightliners Horsepower Estimators

Please note that these are estimates. Real life track performance can be affected by many other variables such as ambient air pressure, intake / exhaust manifold performance, lying about your weight etc :-P

Calculate HP from Trap Speed
Vehicle weight, including driver in Pounds Kilos	Trap speed at end of 1/4 mile in m.p.h. m.p.h.
You are making : HP at the rear wheels
This calculation is based on the following equation : BHP Estimate = (Speed/234)^3*Weight Note: Speed in MPH, Weight in Pounds (1 Pound = 2.2046224 KGs)

Calculate HP from Elapsed Time
Vehicle weight, including driver in Pounds Kilos	Elapsed Time in seconds sec
You are making : HP at the rear wheels
This calculation is based on the following equation : BHP Estimate = Weight / (ET / 5.825)^3 Note: ET in Seconds, Weight in Pounds (1 Pound = 2.2046224 KGs)

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