Sometimes, the terms boxer engine and flat engine are used interchangeably, even though the two are not the same. What's the ...

We all know how a conventional internal combustion engine works, with a piston and a crankshaft. But that’s by no means the only way to make an engine, and one of the slightly more unusual ...

If you are a motorhead, an unusual engine will immediately get your attention. Most vehicles today have either an inline or V-shaped configuration, so anything peculiar will immediately stick out. If ...

While a lot of automotive engines have one spark plug per cylinder, the HEMI V8 might have two per cylinder. What is the science behind that?

Production cars have come a long way since the invention of the combustion engine, and car manufacturers have always sought to innovate and push the limits of what is possible. An area of particular ...

Give it wheels and a steering mechanism, and people will try to power it with anything they can. Visionary (and not-so-visionary) tinkerers and engineers have experimented with everything from steam ...

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 ...

When we here in the modern age think of an “engine,” we are usually thinking of a four-stroke, four-cylinder, gasoline-fed, internal-combustion engine with the valves on the top. But why must that be ...