Pop the hood on a classic Mazda RX-7 or RX-8 and the engine bay looks oddly empty. That is the charm of the rotary engine: a compact lump of metal that trades pistons and valves for a spinning ...

With the internal combustion engine (ICE) being a staple of multiple forms of transportation since the late 19th century, most people are at least somewhat familiar with how an engine works: fuel and ...

There are a few different kinds of combustion engines out there. Most of them are fairly simple machines in theory, but decades of refinement and innovation have made modern engines into complex ...

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 ...