Both pistons and valves move in and out of a space at the top of engine cylinders known as the “combustion chamber”.

Porsche's new patented six stroke engine might not be a thing of reality yet, but the new technology is still very ...

Ford's first V8 ushered in a new era. Here are some of the most interesting models it powered, from the '30s to the '50s.

Less fuel and emissions, more power, higher revs. EcoMotors' OPOC engine promised it all. Investors, including Bill Gates, ...

Here’s what happens in water: Normally, the engine sucks in air. That air is mixed with vaporized fuel, and that mixture is ...

From trains to tanks to finally tearing up the 24 Hours of Le Mans, today diesel outperforms gas for power, efficiency and ...

The Environmental Protection Agency and California Air Resources Board have established that NOx and particulate emissions ...

Despite appearances, modern four-cylinder cars can reach higher speeds than you might think. Here are six of the most ...

What’s the voodoo behind the horizontally opposed cylinder setup only found in Subarus and Porsches? And what sets them apart from inline engines?

The XF8B was envisioned to provide the U.S. Navy with a long-range carrier-borne fighter that could take the fight to the Japanese mainland. When it comes to military aircraft manufacturing, Boeing is ...

The car was parked under a tree in 1986; after opening up the 289 V8 and getting the pistons free, the new owner asks $750 ...

Abandoned without the sparkplugs, the car’s engine is seized beyond hope, and the mechanic has to tear it apart to find the ...