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Dynamometer Guide

There are 2 basic types of chassis dyno. One type is the inertia dyno. The inertia dyno measures the speed of a an object, spun by the wheels of a vehicle, to come up with horsepower and torque numbers.

The other type is the hydraulic dyno, which measures the horsepower and torque of a vehicle by applying varied levels of resistance to the drive line. Both dynamometer types have their advantages and disadvantages.

Inertia DynamometerHydraulic Dyno
How inertia dynos workHow hydraulic dynamometers work
Inertia dynamometer advantagesHydraulic dyno advantages
Inertia dynamometer disadvantagesHydraulic dynamometer disadvantages