Porsche unleashes updated 911 GT3 RSR
Stuttgart reveals the latest big daddy of its 911-based motorsport rangePorsche recently revealed its 2011 GT3 Cup racer and now the Stuttgart mob has unleashed the even more feral 911 GT3 RSR.
Although based on last year's car, the newbie has scored a host of mods that allegedly boost its pace and driveability. It was unveiled at the "Night of Champions" party held at the R&D Centre in Weissach to mark the end of the motorsport season.
Porsche says it focused primarily on the car's aerodynamics, but it's also tweaked the suspension kinematics and engine. The 4.0-litre flat-six now cranks out 355kW at 7800rpm, four kilowatts more than its predecessor.
The extra neddies were harnessed via a revised engine management system that adapts better to different fuel grades, as well as a redesigned exhaust system and a modified air intake housing.
Apart from producing more power, Porsche says the driveability of the engine has also improved. Maximum revs remain unchanged at 9400rpm.
Meanwhile, the aero enhancements include a new front lip that provides higher downforce over the front axle. The rear wing and wing mounting have also been reprofiled and were adapted to the new rear fairing with additional air outlet louvres. The rear lid was also redesigned for optimised air ducting.
Front-end grip is said to further benefit from a wider footprint, with the rims growing from 11 to 12 inches to lessen understeer.
As per the 911 GT3 Cup and the GT3 R that sit below it in the Porsche Motorsport range, the RSR is now equipped with the LED rear lights taken from the latest 911 road-legal cars.
The Weissach-built long-distance racer can now be ordered from the factory at a price that equates to $550,000 in our money -- excluding duties, taxes and shipping. Alternatively, those who already own a 2010 GT3 RSR can order the 2011 modifications in kit form.
Engine:
Power: 335kW at 7800rpm
Torque: 450Nm
Air restrictors: 2 x 28.6 mm
Max revs: 9400 rpm
Transmission: Porsche six-speed sequential gearbox; three-plate carbon-fibre clutch; rear wheel drive; limited slip differential 45/65 percent.
Body: Monocoque body (basis GT3 RS); bespoke front spoiler; aerodynamically optimised front underfloor; adjustable rear wing; 90-litre FT3 safety fuel tank with fast filling function; air jack.
Cockpit: Welded-in safety cage; race seat (driver's side only) with flame retardant upholstery; six-point seat belt adapted for use of the HANS Head and Neck Support; electric fire extinguishing system.
Suspension: Front -- McPherson spring strut axle; Sachs four-way gas pressure dampers; double coil springs (main and auxiliary); front axle arms adjustable for camber; adjustable sword-type anti-roll bar; power steering.
Rear -- Multi-arm axle with rigidly mounted axle sub-frame; Sachs four-way gas pressure dampers; double coil springs (main and auxiliary); rear axle tie-bar reinforced and infinitely adjustable; adjustable sword-type anti-roll bar.
Complete suspension infinitely adjustable (height, camber, track).
Brakes: Front -- Single-piece six-piston aluminium fixed callipers; inner vented, 380mm; racing brake pads.
Rear -- Single-piece four-piston aluminium fixed callipers; inner vented, 355mm; racing brake pads.
Wheels: Front -- Three-piece BBS light-alloy wheels (12J x 18 ET 34); central bolt; Rear -- Three-piece BBS light-alloy wheels (13J x 18 ET 12.5); central bolt.
Weight: 1220 kg
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