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More Power! Get the details on the potent Porsche 911 GT3 RS 4.0

Thu, 28 Apr 2011

Porsche has ramped up the already heady performance of the 911 GT3 RS through the adoption of a new, naturally aspirated 4.0-liter version of the company's sturdy, horizontally opposed flat six-cylinder engine.

The unit kicks out 50 hp more than the 3.8-liter six-cylinder used in the existing 911 GT3 RS. This mill claims 500 hp at 8,250 rpm, a figure which makes the speedster the most powerful naturally aspirated road-going version of the 911 ever.

Along with the increase in peak power, the engine also develops an additional 22 lb-ft of torque, which increases to 339 lb-ft at 5,750 rpm.

The 4.0-liter is used in the competition variant of the car, the 911 GT3 RSR.

Porsche claims a 0-to-62-mph sprint of just 3.9 seconds--a scant tenth of a second inside the time quoted for the old model. It also quotes a 0-to-124-mph (the magical 200 km/h for Europeans) time of less than 12 seconds.

Like the previous model, the gearing and aerodynamics of the GT3 RS can be altered. The car checks in at a lithe the 2,998 pounds. Underlining its competition background, the limited-edition 911 GT3 RS 4.0 will be sold exclusively in white.

By Greg Kable