The spec sheet of the REV Force sounds too good to be true. The small 578cc engine weighs just 105 pounds and produces 173 HP. It has a supercharger, doesn’t burn oil, and is lubricated like a ...

Yanmar is part of a consortium developing a hydrogen-compatible hybrid electric vessel combining a hydrogen engine generator with batteries.

Generally, combustion engines follow a standard principle of operation founded on the premise that the crankshaft spins clockwise (as seen from the driver’s seat). That’s how the powerplants are ...

When we here in the modern age think of an “engine,” we are usually thinking of a four-stroke, four-cylinder, gasoline-fed, internal-combustion engine with the valves on the top. But why must that be ...

The story of how Honda developed an oval-piston race engine that ultimately failed but still made history along the way. Honda pioneered oval piston technology in the 1970s for four-stroke racing ...