HP = (RPM x Torque)/5252

TO resolve the horsepower an engine is producing, torque has to measured at a known rpm and then hp is found.

When peak hp is rated on an engine it is ONLY for full throttle at the specified rpm. There is no way to find out the hp at other rpms unless you have a graph of a dyno run of the engine.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record