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Horsepower to the crank refers to the power output of the engine before it reaches the drivetrain, while horsepower to the wheel is the power that is actually transmitted to the wheels after losses in the drivetrain. Horsepower to the wheel is typically lower than to the crank due to power losses from the transmission, differential, and other components.

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Q: What is the difference between horsepower to the crank and wheel?
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