Here's a quick explainer of what car engine valves do and why carmakers spend ... It's an unbearably complicated mechanism, but that's part of why it arrived decades after the previous two ...

Thanks to OEM-developed variable valve ... and engine management systems that it has become practical and effective. Why VVT?The initial impetus to put VVT systems into production cars was the ...

Variable valve timing and lift have done their ... which feature the then-new VQ37HR engine. But more important than which cars have been slated for VVEL treatment—since all sorts of Nissans ...

A car engine is a piece of heavy machinery, and it isn’t surprising for it to make all kinds of sounds. The rotating shafts, the moving pistons and valves, the combustion process, and other engine ...

The claim for silence lay in the motor. Although successful enough, the car, owing perhaps to lack ... improvement in the design of the valve mechanism. The valve mechanisr consists of two ...

but the engine will also likely become smoother and more responsive. In addition, proper adjustment can extend the life of the valve train. Cars.com’s Editorial department is your source for ...

You can find the 6.4L, or 392, HEMI under the hoods of several models of cars ... reported 6.4L HEMI engine problems being the troublesome "HEMI Tick" and the associated valve train failure.