Chassis dynamometer
“A testing device with heavy rollers used to measure the power and torque delivered directly to the drive wheels of a vehicle.”
Synonyms by Register & Formality
Antonyms & Opposites
Nuance Analysis & Word Contrasts
While 'chassis dynamometer' is the precise engineering and technical term for the complete testing apparatus, industry professionals and enthusiasts almost universally shorten it to 'dyno' or specify 'rolling road' in British automotive contexts. Use the full technical term in formal reports, academic papers, or specifications, and the informal variants in workshop settings or enthusiast media.
chassis dynamometer vs chassis dyno
Chassis dynamometer is the complete, formal name used in technical specifications and literature, whereas 'chassis dyno' is the ubiquitous industry shorthand used by mechanics and tuners in daily conversation.
chassis dynamometer vs engine dynamometer
A chassis dynamometer measures power at the wheels after it passes through the transmission and drivetrain, whereas an engine dynamometer measures power directly from the crankshaft with the engine removed from the vehicle.