That all changed in the '90s with the introduction of the Dynojet, a portable chassis dyno that was in the financial grasp of most every mom-and-pop performance shop. Finally, power claims were ...

When analyzing the function of our favorite test tool, the Dynojet dynamometer, horsepower is measured by the rate of time a vehicle takes to spin the Dynojet roller, based on the roller's weight.

Over the past decade, chassis dynos have proliferated across the country, in theory making it practical for the masses to evaluate the performance of their engine as installed in the vehicle and ...

To do this, we loaded the STI Killer up on our in-house Dynojet 224xLC dyno and set out to attempt to "trick" the dyno into reading higher or lower by adjusting certain parameters of the test.

In a post in a GR Corolla owner's Facebook group, the car's owner got figures of 258.66 hp at 6320 rpm, and 279.38 lb-ft of torque from a DynoJet dynamometer. You may already know this ...

One new owner, Speed Phenom on YouTube, wasted no time taking his to the dyno. And the results are ... car on a few runs strapped to the shop's DynoJet-type dyno. Out of the three runs performed ...

to borrow time on their chassis dynamometer to empirically measure ... a standard sweep acceleration test — like you might on a Dynojet dyno — Banks tested using a steady state step test ...

which puts it on par with the commonly accepted 15% standard for Dynojet dynos. How It Stacks Up Compared To A Stock Ford Mustang Back in 2023, Hennessey posted a dyno run for a stock Ford Mustang ...

The folks at Middleton Motorsports are much obliged to answer that question with their Dynojet dynamometer. The white-painted car in the video below is a Dark Horse with the Tremec-supplied manual ...

Already proven to 444 horsepower at the rear wheels by Middleton Motorsports on a Dynojet dynamometer, the manual-equipped Mustang Dark Horse recently paid a visit to Palm Beach Dyno to lay down ...