The term horsepower has been a staple in the automotive industry for decades, but why exactly do we use it? The concept dates back to the 18th century when engineer James Watt sought a way to compare ...

Sometimes we forget how many things we can do with a simple oscilloscope. In this video [Ben] uses one that Tektronix lent him to measure his DeLorean engine RPM. By checking the car main ~12V voltage ...

Thanks to a close collaboration between the Swiss Federal Laboratories for Materials Science and Technology (Empa), SR Technics and the Federal Office of Civil Aviation (FOCA), Switzerland is setting ...

A crankshaft may experience irregular rotational speed patterns caused by a combustion engine’s discrete firing process. These excite components of the driveshaft, which causes rotational vibrations ...

CHICAGO–Tell someone that your car has 300 horsepower and most people will think you have a fast car. Boast that your car has 300 foot-pounds of torque, and they’ll think you need to get a life.

In an engine, the relationship between the valves and the pistons is a precarious one. If there is too little space, they can collide. If this happens, the resulting carnage require replacing one of ...

It all really comes down to habit. Once people get used to doing things one way — like using the word "horsepower" to refer to an engine's output — it can be exceedingly difficult to get them to ...

It's never been easier for the homebuilder to assemble an engine than now. Thanks to the availability of premachined engine blocks and matching rotating assemblies from folks like Summit Racing, a guy ...