Estimate engine power from the quarter-mile trap speed (Hale/Huntington method).
0 HP (estimated)
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Kilowatts
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Power-to-weight (HP/tonne)
This is an empirical estimate of flywheel power and varies with conditions and traction.
Frequently Asked Questions
How is engine horsepower estimated from trap speed?
A common empirical formula is HP = weight (lb) × (mph ÷ 234)³, using the quarter-mile trap speed. It estimates flywheel power and is approximate.
Estimate engine horsepower from vehicle weight and quarter-mile trap speed.