[MacGyver] [Lou Wozniak] is on a mission to build an internal combustion engine using only hardware ... mixture moves down through the pipe to the cylinder and valve assembly where it is ignited ...

Although simple in concept, the complexity of the internal combustion engine is mind ... remember that this is a relatively simple four-cylinder engine. Imagine throwing in a few more cylinders ...

The cylinders themselves are not as we know them, as they are apparently donut-shaped. According to its claim, the engine can range in its compression ratio anywhere from 7:1 to 38:1, which seems ...

How hard could it to be to build a two-stroke internal combustion engine (ICE ... was then able to manufacture the crank case, the cylinder and crank shaft and all the other pieces that make ...

Porsche has patented a six-stroke internal combustion engine design ... as far up (top-dead-center) in the cylinder. And that also means this engine has two top and bottom dead centers.