HPT debuted an innovative dual-entry turbocharger at the PRI Show. These units are designed to reduce back pressure and ...

Of them all, though, this Audi Sport Quattro has us excited! When Audi gate-crashed the world of rallying in 1981, it didn’t knock politely. It arrived sideways, turbo whistling, and promptly won the ...

KOVACH: The only complaint I have with the Forester is that the whistle of the turbo spooling up at times sounds like a distant emergency-vehicle siren. I find myself looking around to see if there’s ...

Almost nothing can beat compound turbos in performance applications. While a big single can make plenty of power, compounds will spool quicker, tow better, be more driveable, and are capable of ...

The Nissan GT-R may be old, but it still delivers supercar performance and Nissan keeps coming up with ways to keep it fresh. On Tuesday, Nissan unveiled the latest update for the GT-R in the form of ...

What does it take to keep those turbochargers spooling, and what might that cost you in terms of engine durability and reliability? When your rally enthusiast car pals are dissecting the most recent ...

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 ...