Virtually all current production-based cylinder heads incorporate a cross-flow design with intake ports (Photo B) located on one side of the head and exhaust ports (Photo C) on the opposite side. Some ...

Last month's "How It Works" story gave you the basics of the four-stroke cycle, describing the motion of the intake and exhaust valves in relation to the piston moving up and down in the cylinder.

In case you missed it, the automotive industry has been on a steady trajectory of internal combustion engine (ICE) downsizing for years. Battery-powered electric vehicles may capture most of the ...

This mirror-like coating has less friction, so it means more power, and better efficiency. These coatings are also about 10 times thinner than cast iron sleeves, about 0.2 mm thick, versus 2 mm ...

In a world of four-, six-, and eight-cylinder engines, the number seven sticks out like an awkward middle child. It may be a lucky number in Vegas, but it's practically taboo in engine bays. Not ...

Hydrogen is a relatively new player in the alternative fuel market, offering an alternative to electric cars and hybrids with its own take on green emissions. However, hydrogen-powered technology ...

The five-cylinder engine is uncommon relative to the ubiquitous four-cylinder, six-cylinder, or eight-cylinder variants. As an odd-number engine, it certainly is in a class of just three such engines.

The mind-bending world of birotary engines - a hybrid of piston and rotary technology that could revolutionize aviation. But ...

Four-cylinder engines have been part of the automotive scene for over a century. Yet the quest for more power under the hood dominated most of the 20th century, giving rise to six- and eight-cylinder ...