We know Rivian’s top-shelf R1T is wicked quick—we drove it ourselves toward the end of last year. The new automaker claims output figures of 835 horsepower and 908 pound-feet of torque, which is a lot ...

It’s Dyno Day for the legendary ARDUN heads — but how much horsepower do they really add? In this video, we put these iconic heads to the test on the dyno to measure their performance boost. With a ...

Real-World Showdown: We put Don Hicks' Ford 393-Cleveland Stroker Motor to the Test on Westech Performance's Engine and Chassis Dynos. The Results May Surprise You. How much power do you lose through ...

Direct Injection 5.3L L83 engines are starting to show up in salvage yards, but how do they compare to the super popular 5.3L Vortecs that have been a mainstay of LS swaps? We were a bit skeptical of ...

Well, that didn’t last long. Dyno Mode was recently discovered by Tesla owners through an EPA finding that made it public. This is a hidden feature that will allow the driver to disable traction ...

Last month, we covered how a dyno operates and some of the mathematics involved with recording and calculating the coveted horsepower and torque numbers that enthusiasts lust after. This month, we are ...

Mention a dyno test around a group of enthusiasts and you're almost guaranteed to start an argument. Regardless of the numbers or the shop, you will have people on both sides of the fence, some ...