Apparently, the differences as compared to the 2010 model aren’t extensive. The new GT3 RSR equipped with the new direct-injection powerplant as employed on the latest 911 road-legal cars. The RSR remained using the 4.0-litre version of the old boxer six, but with latest ECU mappings, intake and exhaust, now producing 5hp more than the 2010 model to 455hp.
The bodywork has also been revised. The revised rear end include new LED rear lights while the front wheels are wider than its predecessors.
Here goes the Technical description of 2011 Porsche GT3 RSR
Water-cooled six-cylinder boxer engine; 3,996 cc; stroke 80.4 mm; bore 102.7 mm; 455 hp (335 kW) at 7,800 rpm; max. torque 450 Nm; air restrictors 2 x 28.6 mm; max. revs 9,400 rpm; four valve technology; dry sump lubrication; individual throttle butterflies; fuel injection.
Porsche six-speed gearbox with sequential jaw-type shift; oil/water heat exchanger, single-mass flywheel; hydraulic disengagement lever; three-plate carbon-fibre clutch; rear wheel drive; limited slip differential 45/65 percent.
Monocoque body (basis GT3 RS) of hot-galvanised steel; aerodynamically optimised front end with front spoiler; aerodynamically optimised front underfloor; adjustable rear wing; 90-litre FT3 safety fuel tank with fast filling function; air jack; 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.
Front axle: 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).
Brake system with balance bar control.
Front: Single-piece six-piston aluminium fixed callipers; inner vented, 380 mm diameter; racing brake pads.
Rear: Single-piece four-piston aluminium fixed callipers; inner vented, 355 mm diameter; racing brake pads.
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.
Motec display with integrated data recording; multi-function display with integrated gearshift indicator; adjustable traction control; battery: 12 volt, 80 Ah, 140 Ah alternator.
Photo Gallery: 2011 Porsche 911 GT3 RSR