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      11-03-2010, 10:21 PM   #198
e90pilot
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Drives: E90 325i
Join Date: Jul 2005
Location: Oakland, CA

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Ummm... No you're wrong. 18% of 210 is 37.8. Ok now seriously. You need you calculate drivetrain loss from the crank HP value which I dont have. So let's do a little algebra.
Let x = Crank HP value.
Let y = WHP value.

At 18% y = .82x in other words WHP is 82% of crank HP. (100-18=82)
We know from the dyno that y=210
So 210 = .82x
Now, divide both sides by .82
Now 210/.82 = x
So x = 256 hp

A similar method can be used to calculate torque. Just letting you know.
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