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 ...

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).

To break it down into basic terms: a two-stroke engine completes a combustion cycle after just one revolution of the crankshaft, while a four-stroke engine requires two complete revolutions to ...

Porsche engine tech New 4 + 2-stroke format Examining recent Porsche patents. Porsche has filed patents for an engine cycle with two combustion events for every six strokes (or three rotations of ...

The four stroke engine does not need pre-mixing of fuel and oil, as it has a separate chamber for the oil. On the other hand, the two-stroke engine has its entire combustion cycle completed with ...

The main difference between the gas-driven 2- and 4-stroke sleds is in how the engine works. A 4-stroke engine goes through four strokes of the piston to complete the combustion cycle, while a 2 ...

A working DIY two-stroke in all of its glory, with the flywheel removed. (Credit: Camden Bowen) How hard could it to be to build a two-stroke internal combustion engine (ICE) from scratch?