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Old 02-10-2010, 12:08 PM
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CobraDan CobraDan is offline
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Join Date: Jan 2001
Location: Cape Coral, FL
Cobra Make, Engine: 2009 Solbra
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Rear Wheel Horsepower to Flywheel Horsepower Conversion
Convert rear wheel figures to estimate flywheel figures.

Flywheel Horsepower = FHP; Rear wheel Horsepower = RHP

FHP = RHP + 17% (auto trans)

FHP = RHP + 25% (man trans)

RHP = FHP - 15% (auto trans)

RHP = FHP - 20% (man trans)

Example: 312.25 FHP = 249.8 RHP + 62.45 HP*

* Manual trans: +25%

http://www.cobranet.com/calcs.htm
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