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

The benefits of turbocharging range from increased power (due to an increase in the air-fuel mixture) to better efficiency ...

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.

Twin scroll turbo engines are similar to twin turbos, but more powerful - here's how they work and why they generate higher horsepower.

The no-replacement-for-displacement die-hards aren't all wrong about turbo tech; it isn’t flawless. But there is one interesting fix for some of its problems, and it is the twin-scroll turbocharger.

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?