Variable geometry turbos promise better boost and efficiency, but do all Cummins engines include them? Dive into the tech and ...

While turbo flutter may sound cool to you, it could put unnecessary strain on the turbo system, and it will cause the components to wear faster.

By Pat Ganahl A supercharger—such as a turbo—compresses air. Compressing air heats it. Heating air makes it expand. This is a Catch 22 inherent in supercharging ...

Audi solves the problem of turbo lag another way entirely. It uses a small compressor, also powered by a 48-volt electrical system, to essentially "pre-charge" the existing conventional turbochargers.