twin-scroll

Dan Neil / The Wall Street Journal This is the first year for the 6-series with the N55 engine, the twin-scroll turbo, 3.0-liter in-line six that so admirably muscles the 335i around.

BMW 640i 2011

This is the first year for the 6-series with the N55 engine, the twin-scroll turbo, 3.0-liter in-line six that so admirably muscles the 335i around.

BMW 640i: For the All-Business Person Dan Neil 2011

Under the hood is one of BMW's new modular turbocharged engines, codenamed N20, equipped with a single, twin-scroll turbocharger, which BMW calls, maddeningly, "twin-power turbo."

In BMW's Repackaged Z4, Less Is More Dan Neil 2011

The BMW X3 xDrive35i has a twin-scroll turbo engine.

Corrections 2010

Packaged in the V between the engine's cylinder banks, the turbos use BMW's twin-scroll system, whereby a clever cross-bank exhaust manifold evens out the gas flow, removing back pressure and ensuring maximum response times.

Telegraph.co.uk - Telegraph online, Daily Telegraph and Sunday Telegraph Chris Knapman 2011

The former injects fuel at very high pressure and with great precision directly into the combustion chamber and the twin-scroll turbo works more efficiently by making better use of exhaust gas flow and delivers its boost in a way that also improves combustion efficiency.

The Globe and Mail - Home RSS feed BOB ENGLISH 2011

But it has also two latest-tech features: gasoline direct injection GDI and a twin-scroll turbocharger.

The Globe and Mail - Home RSS feed BOB ENGLISH 2011

Under the bonnet is a choice of the BMW/PSA 1.6-litre four-cylinder, with a twin-scroll turbo, or BMW's 141bhp, 2.0-litre turbodiesel.

Telegraph.co.uk - Telegraph online, Daily Telegraph and Sunday Telegraph 2011

Any 16G is better in pretty much every way (except price) than a VF-anything, outside the VF22 and maybe a few others, which are either a bit larger, or are twin-scroll.

NASIOC BoXinWRX 2010

For the more enthusiastic crowd, there's a 2. 0-liter twin-scroll turbo engine with 274HP that's linked to a six-speed automatic transmission.

Carscoop John @ Carscoop 2010