The two-stroke engine is mostly a piece of history today, but there was a time when some of the coolest developments in engine technology were two-cycle engines. Here’s how two-stroke technology rose ...

Detroit Diesel has produced many classic engines, but the "Screaming Jimmy" two-stroke is likely the one with the most ...

Editor’s Note: This article previously appeared in a different format as part of The Atlantic’s Notes section, retired in 2021. In response to the item immediately below, which kicked off this Thread, ...

Achates Power of San Diego has developed a two-stroke truck diesel that has two crankshafts linked to two opposed pistons facing each other in a common cylinder. The biggest advantage of this design ...

Conventional wisdom suggests that our faithful internal combustion (IC) engines are heading the way of the buggy whip. The lithium-ion battery has arrived, emissions standards are tightening, and ...

Add Yahoo as a preferred source to see more of our stories on Google. The rattle, buzz and clatter of a two-stroke engine is unmistakable, but it isn't necessarily good for the planet. That's because ...

There are two basic differences between 2 stroke and 4 stroke motors. One has to do with how many strokes it takes a piston to complete an engine cycle (more on that below). The other has to do with ...

Making a new engine while the world’s rushing to switch to electric vehicles only? Mazda said, “why not?” There’s a new innovator in town and it wants you to pay attention. Mazda’s SkyActiv-X engines ...