Porsche GT3 RSR: A Very Successful Race Car – Part III

Porsche 911 GT3 RSR – Technical description (2010 season)

Engine: Water-cooled, six-cylinder boxer engine; four-valves per cylinder; 3,996 cc; stroke 80.4 mm; bore 102.7 mm; 331 kW (450 hp) at 7,800 rpm; max torque 430 Nm at 7,250 rpm; max revs 9,400 rpm; dry sump lubrication; individual throttle butterflies; fuel injection; air restrictors 2 x 28,6 mm.

Transmission: 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%.

Body: Monocoque body (basis 911 GT3 RS) of hot-galvanised steel; aerodynamiccally optimised front end with front spoiler; aerodynamically optimised front underfloor; adjustable rear wing; 90-litre safety fuel tank with fast filling function; air jack; welded-in safety cage; bucket-type racing seat (driver’s side only) with flame retardant seat cover; six-point seat belt adapted for use of the HANS Head and Neck Support; electric fire extinguishing system.

Suspension: Front axle: McPherson spring strut axle; Sachs four-way gas pressure dampers; double coil springs (main and auxiliary spring); front axle arms adjustable for camber; adjustable sword-type anti-roll bar on both sides; power steering.
Rear: Multi-arm axle with rigidly mounted axle sub-frame; Sachs four-way gas pressure dampers; double coil springs (main and auxiliary spring); rear axle tie-bar reinforced and infinitely adjustable; adjustable sword-type anti-roll bar on both sides. Complete suspension infinitely adjustable (height, camber, track).

Brakes: Brake system with balance bar control. Front: Single-piece six-piston aluminium fixed callipers; inner-vented, 380 mm in diameter; racing brake pads. Rear: Single-piece four-piston aluminium fixed callipers; inner-vented, 355 mm in diameter; racing brake pads.

Wheels: Front: Three-piece BBS light-alloy wheels (11J x 18-34); central bolt. Rear:
Three-piece BBS light-alloy wheels (13J x 18-12.5); central bolt.

Electrical system: Motec display with integrated data recording; multi-function display with integrated gearshift indicator; adjustable traction control; battery: 12 volt, 50 Ah, 140 Ah alternator.

Weight: Approx. 1,220 kg complying with A.C.O. regulations, 1,245 kg complying with FIA regulations.