Super Street Network

 |   |   |  BMW Announces The Return of Four-Cylinder Engines - Web Exclusive
Subscribe to the Free
Newsletter

BMW Announces The Return of Four-Cylinder Engines - Web Exclusive

The new engines are scheduled to arrive later in 2011.

Jan 28, 2011

This week, BMW announced the return of a four-cylinder engine to the US line-up for the first time in since 1999. Like the company's latest 3.0-liter turbo inline six, the new 2.0-liter engine will combine twin-scroll turbocharging with high-pressure direct-injection and VALVETRONIC intake control. With 240hp and 260 lb-ft of torque, it offers more power and torque than BMW's normally aspirated 3.0-liter inline six! The new engines are scheduled to arrive later in 2011.

Eurp_1101_01_o+bmw+logo Photo 2/2   |   BMW Announces The Return of Four-Cylinder Engines - Web Exclusive

Peak horsepower is achieved at 5000 rpm, 1500 rpm lower than in the normally-aspirated 3.0-liter inline six. The peak torque comes on stream at just 1250 rpm - 1,500 rpm earlier and 30% more torque than the inline six.

The design features an all-aluminum crankcase. It's lighter and more compact than a six-cylinder engine of equivalent power. The exhaust leaving the two pairs of cylinders are kept completely separate as they flow through the manifold and the turbocharger, taking a spiral path to the turbine wheel. This configuration results in low back pressure at low engine rpm, and allows the energy of the exhaust gas pulses to be managed and translated into powerful rotation of the turbine blades, without a delay in throttle response.

The High Precision Injection direct-injection system also helps to improve efficiency. Centrally positioned between the valves, solenoid injectors with a maximum injection pressure of 2900 psi control the supply of fuel. The fuel is injected very close to the spark plug, resulting in clean and homogeneous combustion.

The cooling effect of the injected fuel also allows for a higher compression ratio.

BROWSE CARS BY MARKET

MORE FEATURES

Sometimes, you don't need a lot of flash or gimmicks when you commit yourself to mastering the classics.
Jonathan WongOct 16, 2018
All too often when admiring a high-quality build at a local meet or major car show, we take for granted the fact the car we are admiring was once completely bone stock.
Andrew BeckfordOct 16, 2018
Porsche rolled out two more Panamera models—a Panamera GTS and GTS Sport Turismo variants that slot between the Panamera 4S and Panamera Turbo.
Ed TahaneyOct 15, 2018
The Robles have built some wicked machines, but what's important here isn't that a father and son each own a fast car; it's the environment from which they came.
Patrick ReynoldsOct 15, 2018
Hot Rod's Drag Week isn't the place to go if you're an avid, diehard import fan. However, this year's was a little different with a MkIV Supra in the mix that had everyone talking
RodrezOct 12, 2018
Sponsored Links

SEARCH ARTICLES BY MAKE/MODEL

Search
CLOSE X
BUYER'S GUIDE
SEE THE ALL NEW
NEWS, REVIEWS & SPECS
TO TOP