Quote:
Originally Posted by Nautik
Said best right here.
The best way horsepower vs torque was explained to me was: "Horsepower = Torque * Engine Speed"
And as far as performance of the M3 engine, it certainly is under-rated if you just look at the peak power of it. It is very smooth and delivers that power over a much longer period of time.
The Math gurus need to crunch a new formula to rate an engine which incorporates how much power was generated over a given amount of time. Maybe some kind of weighted horsepower figure.
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The exact formula is hp =(torque in lb-ft * rpm)/5250. If you look at ALL power and torque graphs, they all cross around 5250 rpm. This is where power in hp and torque in lb-ft are numerically the same.