Horsepower is a relic of the steam age, yet it still dominates spec sheets, showroom chatter, and online debates about engines. Even as engineers rely on watts and kilowatts, the car market, ...

From left: Thayer, Keller and Patiashivili pose with the Formula SAE car. As multi-year members of the Formula SAE student group, mechanical engineering and mechanics majors Jon Keller and Juba ...

Language is an imperfect medium, but it's what we've got, so let's go with it. Determining the swept volume of inventor Felix Wankel's rotary engine can generate more arguments than claiming what a GT ...

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 ...

If you've heard of racing enthusiasts and drag racers discuss blueprinting, but have no idea what they're talking about, this ...

You almost certainly know the horsepower rating or displacement of your boat’s engine. But some marine-engine manufacturers have begun marketing torque over horsepower. In a break from standard ...