Porsche has patented a revolutionary new engine with a six-stroke combustion cycle. Essentially, the engine is combining both a two-stroke and four-stroke engine into one, taking the individual ...

The cylinder bore is only half of the equation that determines an engine's displacement, or size. The other half of this ...

It's important to keep in mind that the combustion process occurs in a very brief period of time. Due to a variety of conditions that include mixture density, homogeneity, temperature, fuel ...

Gearheads and faithful Jalopnik readers already know the basics of an engine's bore and stroke, but for those that might be new here, let's dip our toes in the shallow end. An engine's bore refers to ...

Variable cycle engine design embodies a transformative approach in aero‐propulsion, enabling engines to adapt their thermodynamic cycle to meet diverse operational demands, from fuel efficiency to ...

Years ago, the choice was clear: When it came to 2 stroke vs 4 stroke outboard motors, 2 stroke won every time. Two stroke motors offered a better power-to-weight ratio, were cheaper to manufacture, ...

The X-Engine technology used in the XTS-210 is a direct drive rotary approach that can be viewed as an "inverted" Wankel engine. It has a trochoidal rotor with a three-lobed housing, but it utilizes a ...

Car crafters all like to talk about engines. And in our world where there's no replacement for displacement, dropping the "stroker" term into your engine conversation is bound to garner attention.

Ever since 2016, the U.S. Air Force (USAF) has been looking for a new engine to slap into its fifth-generation F-35 fighter plane. The engine didn’t get to be detailed until 2019, and testing didn’t ...

What if the engine of the future wasn’t just a dream, but a reality? Imagine a power source that combines the raw, exhilarating performance of a two-stroke engine with innovative efficiency, ...

Fans often ask our technical experts ‘What is MotoGP™ Engine Displacement?’ and this complete guide to the topic will explore engine displacement in MotoGP™, its significance per category of the World ...