In terms of the drivetrain, Porsche remains faithful to its chosen path. The latest nine-eleven is also powered by a six-cylinder naturally aspirated engine. The highly efficient boxer unit positioned in front of the rear axle has a capacity of 4,194 cc and – depending on the size of the restrictor – produces around 515 hp. The new power unit is the largest ever boxer engine to be mounted in a Porsche 911 ex-works, and offers even better driveability over a wider rev-band compared to the predecessor’s proven four-litre aggregate. Power is delivered to the rear wheels via a weight-optimised, more rigid sequential six-speed constant-mesh gearbox. The new powertrain in the Porsche 911 RSR ensures faster gear-shift times and increased efficiency. The two exhaust pipes now exit on each side in front of the rear wheels. The new exhaust gas ducting saves weight and is aerodynamically advantageous.
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