This 524hp Subaru Impreza WRX STi hits the dyno with equal length headers and a screamer pipe, unleashing the full voice of its EJ25 engine. Expect aggressive pulls, turbo spool, and raw boxer engine ...

LT4 is how GM calls the blown V8 of the Camaro ZL1, and it’s a serious piece of small-block engineering thanks to roto-cast aluminum heads, larger combustion chambers than the LT1 on which it’s based, ...

Pete Aardema and Kevin Braun build custom racing engines in San Diego, California and their latest creation is a 6.0-liter V12 that’s being prepared to go hunting for land speed records. While Aardema ...

With Porsche finally rolling out the brand-new 992-generation 911 GT3, videos showing the sports car in all sorts of scenarios keep popping up on the Interwebz. We've seen it hit almost 200 mph (322 ...

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 ...

The legendary Lancia Delta HF Integrale Group A hits the dyno. Watch full throttle pulls, onboard moments, and raw engine ...

Here at VETTE, we've heard both sides of the engine-dyno argument. On one hand, a stout dyno sheet offers bragging rights to the owner, but on the other, you can't race a dynamometer, and they cost a ...

While Rob Dahm’s garage is no stranger to monstrous rotary engines, including four-rotor units cranking out more than 1,000 horsepower, this one is mind-bending. Here we have a massive, ...

It's a shame most car guys never get to witness the fury and violence of an engine-dyno pull firsthand. Abusing your eardrums with the cackling, popping, and deafening bass of all those cubic inches ...

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 ...

YardstickThere is an old adage that you don't race dynos and flow benches. Manufacturers of test equipment use different standards and test procedures that will affect the results. This brings me to ...