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, ...

More liters don't automatically mean more horsepower. Here's why a smaller engine can sometimes make significantly more power ...

How BMW turned its S58 road engine into a 590 hp GT3 race motor, and why you can buy one off the shelf.

Cummins has produced some of the most reliable diesel engines available, including its 6.7-liter turbo engine. Among the impressive lineup, the QSK19 is a true workhorse. Designed to improve upon the ...