Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

The hunt for efficient engine valve technology can be a never-ending journey into cam timing, various combustion cycles, and lift and duration adjustments. For that reason, some companies believe ...

Brian Cooley is CNET's Editor at large and has been with the brand since 1995. He currently focuses on electrification of vehicles but also follows the big trends in smart home, digital healthcare, 5G ...

Incomplete gasoline combustion can lead to your car running rough, and in the worst cases, can seriously damage engine ...

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...

You've probably read this line a dozen times: "It's never been easier to make horsepower than right now." While that's true, it also means everything else in the engine is now more highly stressed.

WESTMINSTER, S.C.--(BUSINESS WIRE)--Power management company Eaton has announced its U.S. Engine Valve (USEV) joint venture with Nittan Valve Company, Ltd. will invest $40 million in engine valve ...

Desmodromic valves are mostly a thing of the past, but one Italian motorcycle company continues to soldier on with the technology, and we're curious why. Kyle Hyatt Former news and features editor ...

What's scarier than a Maserati engine from the '80s? A more sophisticated one from the same timeline. Admittedly, we can't really comment on its reliability, as Maserati's prototype six-valve engine ...