VGTs change vane position to reduce lag and optimize power at all speeds. Cummins uses them widely, but not every engine in ...

unlike some cars that either don't move or lurch forward. The engineer explained that this is due to the quick turbo ...

The highly-coveted Porsche 997 Turbo is a speed demon and one of the most iconic cars of all time, but how much horsepower does it actually have?

How Does A Wastegate Work? A wastegate is a pretty simple valve but has a big role in keeping the engine safe and working properly when a turbocharger is installed.

Turbo wastegates help your car's turbocharger spin at just the right speed. But if they get stuck, a legion of bad consequences will follow.

To make it in Germany, a lux­ury car has to be a star at top speed. So it is with the new 5000S Turbo—and then some.

A pair of 992.2-generation Porsche 911 Turbo test cars were spotted in the Pine Junction, Colorado area by a Road & Track reader.

While this V8 is clearly and openly based on Suzuki's work, the folks over at JFC Racing have done some work to make it more car-ready. The engine can be had as a twin-turbo 2.8-liter or a ...