Testing. It’s the backbone of hot rodding, and it’s how we separate facts from fiction. It’s also where we generate even more questions, which often results in, you guessed it, more testing. The ...

Featuring Screamin’ Eagle Extreme CNC-ported cylinder heads, an SE8-517 high-lift cam, new high-compression forged pistons, a high-performance cam bearing, high-performance tappets, patent-protected 4 ...

This video features a dyno test of the BMW P65 V8 race engine, originally used in the BMW Z4 GT3. The session highlights measured power figures and the distinctive exhaust sound of this ...

A supercharged V8 engine is pushed to its limits on the dyno, revealing astonishing horsepower, massive torque, and pure mechanical aggression. This test showcases the raw power, instant throttle ...

We put both engines on the dyno to see which made more horsepower and torque. It didn’t go as planned. Over the past year, we assembled two very mild small-blocks aimed at the typical hot-rodder ...

“With no changes, it’s no surprise that the 2025 Yamaha YZ250F engine delivers on all expectations,” test rider Allan Brown said. “The Tuning Fork brand’s advancements over the past few years have ...

If you want to dyno test your tuner car, you can probably find a couple of good facilities in any nearby major city. If you want to do similar testing at a smaller scale, though, you might find it’s ...

“The 450 XC-F engine is an absolute tractor,” test rider Allan Brown said. “It has the most usable all-around power, and you can ride it longer with less fatigue than the competition. Add in its ...