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Porsche Working On A New Flat Four

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On: Thu, Jan 20, 2011 at 6:00PM | By: Chris Weiss

Porsche Working On A New Flat Four

Porsche executives confirmed at the Detroit Auto Show that Stuttgart is working on a new, small powerplant that will be applied to future versions of the Boxster, Cayman, and possibly the 911. The new flat four-cylinder is still under development.

Outgoing head of development at Porsche Wolfgang Durheimer said of the engine: "We have a four-cylinder boxer engine under development," adding that it could be applied to the Cayman and Boxster. According to reports, the engine will have a displacement of 2.5 liters and will put out around 360-hp in turbocharged form.

When addressing whether or not the new flat four would make its way into a base-level 911, Durheimer said: "[It] could be applied if necessary to the 911. Our decision is, on the 911 side, we’ll stay with the flat [six]. But there are opportunities for the future."

With emissions regulations tightening in both Europe and the U.S., it's forseeable that Porsche might eventually introduce the smaller engine to the 911 line in order to cut emissions and boost efficiency of its line. We're not that excited by a 911 with a four-cylinder—no matter how much turbocharging it gets—but it is what it is.

Porsche's head of powertrains Thomas Krickelberg recently told as much to Drive magazine: "[There are] the discussions about global warming and the need to reduce fuel consumption. The target was to have a six-cylinder because that is the criteria of the 911 and the Boxster. But there is still the option to reduce the number of cylinders."

Expect the new four to debut on the 2011 Boxster or on the rumored entry-level roadster below the Boxster, if and when that model materializes.

Porsche currently uses a 2.9-liter flat six in the base Cayman and Boxster and a 3.6-liter six-cylinder in the base 911.


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