The engine is connected to the dynamometer by a calibrated driveshaft, and the dynamometer then spins the engine up to a desired RPM. As the engine spins, the dynamometer measures the amount of torque (twisting force) that the engine produces, and the amount of power (work done over a period of time) that is generated.
Dynoing an engine can be done for a variety of reasons, such as:
* To measure the power output and torque of an engine for comparison purposes.
* To tune an engine for maximum power or torque.
* To diagnose engine problems.
* To calibrate an engine's fuel injection or ignition system.
Dynoing an engine can be a complex and time-consuming process, but it can also be a very valuable tool for engine builders, tuners, and diagnosticians.
