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, ...

The Subaru Impreza STi producing over 500HP, captured on the dyno with a screamer pipe setup. Featuring the EJ25 engine’s ...

The use of a dyno to measure horsepower and torque is a valuable tool for the racer. If you use the dyno just to see what kind of torque and horsepower numbers your engine is developing, that may be ...

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 ...

The Audi R8 Performance fitted with a Capristo exhaust system, captured on the dyno under full load. Featuring the naturally ...

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 ...

Over the past year, we assembled two very mild small-blocks aimed at the typical hot-rodder looking for a solid street engine built on a budget. Once both engines were assembled, HOT ROD editor John ...

Toyota's 1UZ-FE V-8 engine is famous for its stout reliability and relative cheapness. Found in the first-gen Lexus LS400, you often see them powering drift cars or road racers. This one's been ...

Few things satisfy motorcycle enthusiasts more than hearing a beautiful engine, whether it's cruising the interstate or tearing up the track, and few motorcycle engine sounds are as instantly ...

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, ...