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The HP result from my Gtech is lower than the manufacturers HP specification for my cars engine. Why is that?

April 26, 2017car engine gtech HP lower manufacturer specification

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The HP result from my Gtech is lower than the manufacturers HP specification for my cars engine. Why is that?

1 Answer

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The Gtech measures HP after all possible losses, including drivetrain loss, rolling resistance, and aerodynamic drag. All these factors rob your car of power. Manufacturer’s specs are usually for an engine under ideal laboratory conditions, measured right at the crankshaft.