BMW to expand TwinPower Turbo package to 4- and 3-cylinder engines

Article by Christian Andrei, on March 22, 2011

BMW AG will be expanding the use of its TwinPower Turbo package to 4- and 3-cylinder engines – comprising both gasoline and diesel variants. In 2009, this package, which features a combination of twin-scroll turbocharging, direct gasoline injection and fully variable Valvetronic valve management systems, had debuted in a 6-cylinder 3.0-liter gasoline engine that powered the 5-series GT midsized model.

At the recently held Geneva auto show, BMW displayed the first application of the TwinPower Turbo package in a 4-cylinder engine, the 2.0-liter gasoline unit that powers the X1 medium SUV. BMW was able to reduce CO2 emissions by 30% between 1995 and 2010 but it’s committed to further cut this level by 25% more by 2020.

To accomplish this, Autonews says that BMW is expanding the TwinPower Turbo technology to a broader range of engines. In 2010, BMW group sales in Europe averaged 148g/km of CO2 emissions. This is equivalent to 5.4 liters per 100km with diesel engines and 6.6 liters with gasoline models.

The X1, which has been fitted with the TwinPower Turbo package, returns 7.9 liter/100km and it has a carbon dioxide emissions level of 183 grams/ Km. BMW claims that this is 16% lower than a larger displacement engine that offers the same performance.

However, this package raises output 43% to 245hp over a normally aspirated 2.0-liter unit. BMW has yet to announce when the TwinPower Turbo package will be offered on a new family of 3-cylinder engines, which are meant to be used in the upcoming Mini subcompact and entry models of the BMW range.

Topics: bmw, engine

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