In this video, we take a heavily modified Audi S1 with a big turbo setup producing around 403 horsepower onto the German ...

Porsche 911 Carrera 4S Turbo onboard on the Autobahn offers a driver’s-eye view of acceleration and top-speed running. The ...

Love it or hate it, this controversial Ford diesel engine is famous for its deafening scream. Discover the mechanical quirk ...

I’ve heard too many dudebros incorrectly referencing turbocharger functions for far too many years. It seems that nobody can tell a wastegate from a blow-off valve, and today I’m going to school ...

Boost leaks are notoriously common culprits in underperforming turbocharged vehicles. Coupled with boost lag and diminished fuel efficiency, boost leaks can lead to higher maintenance bills and engine ...

There was a time when the V8 reigned supreme. When “There’s no replacement for displacement!” was affixed to every chromed-out muscle car’s bumper. As Bob Dylan once said, though, “The times, they are ...

One of the more difficult technical aspects of diesel performance is choosing a turbocharger. If you put enough fuel through a diesel engine, it's going to run up against a point where the stock ...

At the top of Porsche's Carrera lineup, the 2026 911 Turbo S Cabriolet stands as the most powerful production 911 yet, combining cutting-edge performance with refined open-air luxury. It's a ...

The turbocharger (or turbo) is essentially an air pump that feeds more compressed air to a gasoline or diesel engine, hence the reason why turbo engines are often referred to as "forced-induction" ...

Turbocharger use is more prolific than ever, and understanding how one works explains why it’s such a popular choice. To understand the benefit of a turbo, we need a refresher on the basics of the ...