Dynamometer tests are used to measure a car's torque and rpm response. But how do they get that information? And how reliable is what they get?

Tire engineers are quick to extol the virtues of testing new designs in the lab using calibrated test fixtures, including dynamometer wheels. Others argue that real world service conditions are the ...

Brian is a published author who has been writing professionally for a decade in politics and entertainment, but found his calling covering the automotive industry. His love of cars started at an early ...

Gearhead vehicle discussions often go something like this: "How fast?" "What's the e.t.?" "How much boost?" "What's the horsepower and torque?" Whether bragging or fact, the answers are usually the ...

Bugatti developed a special dynamometer just for its hypercars. The Bugatti Chiron is too fast and powerful for a regular dyno. Dynamometers are a huge part of the testing process for new cars as well ...

Testing a car on the dynamometer is a common activity for performance car enthusiasts, but strapping a 6,500-lb (2,950-kg) truck on a dyno is a different matter. After much effort to find a suitable ...

Available in sizes ranging from fractional to over 2000 hp and speeds in excess of 30,000 rpm, Accudyne dynamometers are appropriate for almost any rotational testing need. SAKOR Technologies' ...

Back in October, Motor Trend wrote that, during its dyno testing, a 2020 Chevrolet Corvette had made horsepower and torque numbers well above the rated 495 horsepower and 470 lb-ft. The publication ...

Road-hogging, diesel-guzzling, pavement-shaking trucks may hardly seem candidates for scientific breakthroughs. But ...

A very good friend of mine, noted engine guru, and PHR contributor David Vizard, was once being queried about some aspect of engine theory. The interesting part of the exchange was when the fellow ...