Although some websites presented the Porsche 911 GT3 RSR since yesterday, Porsche only made it official today. The Porsche 911 GT3 RSR is the most powerful race car ever made, based on the 911. The Porsche 911 GT3 RSR is powered by a 3.8 liter 6-cylinder water-cooled aluminum boxer engine that develops 465 bhp (342 kW) at 8,000 rpm and 430 Nm of torque at 7,250 rpm. The Porsche 911 GT3 RSR has 4 valves per cylinder, dry sump lubrication and individual throttle butterflies. It is also equipped with a central air intake and an electronic MS 4.0 engine management. The Porsche 911 GT3 RSR runs on RON 98 Super Plus unleaded fuel.
Porsche Press Release:
Porsche 911 GT3 RSR Races into New Season
The Porsche 911 GT3 RSR is the most powerful race car based on the Porsche 911 sports coupe, and last year it scored wins in the renowned 24-hour races at Le Mans in France and Spa in Belgium, as well as overall victory in the grueling Nurburgring 24 hours in Germany.
The 911 GT3 RSR is designed for competition in the GT2 class of international long-distance racing,
and for the 2008 motor sport season it has gained extensive modifications. The most distinguishing feature of the new GT3 RSR is the front end, which receives major improvements to the aerodynamics. The majority of innovations, however, are hidden beneath the lightweight body.
Aside from the easily recognisable additional spoilers on the front apron, so-called ‘flicks’, optimised air ducting with newly-designed side air outlets generate more aerodynamic downforce and reduce drag. The rear end, including the rear wing, is carried over from the previous car. Under the skin, extensive changes to the
suspension kinematics have increased mechanical grip considerably and the range of suspension set-up options, to better suit different race track characteristics, has been broadened.
The 3.8-litre flat-six cylinder ‘boxer’ engine of the GT3 RSR remains unchanged apart from slight improvements to details. It delivers 465bhp (342 kW) at 8,000rpm and maximum torque of 430Nm at 7,250rpm. The rev limiter kicks in at 9,400rpm. Much of the know-how in the totally new gearbox of the GT3 RSR has come from the RS Spyder sports prototype race car. As a consequence, the sequential
six-speed unit - developed by Porsche engineers - is considerably lighter than its predecessor, and internal friction is substantially reduced. Finally, the flat angle of the drive shafts allows teams a variety of alternative suspension configurations.
Alongside the GT3 Cup and the GT3 Cup S, the GT3 RSR is the third race car based on the Porsche 911 offered by Porsche Motorsport, based in Weissach, Germany. Thirty-five units of this fastest and most powerful racing derivative of the 911 are now being produced and delivered to customer teams around the globe. The price of the 911 GT3 RSR is 349,800 Euro plus VAT.
Technical Description Porsche 911 GT3 RSR (2008)
Engine
Six-cylinder aluminum boxer engine, water-cooled; 3,795 cc; stroke 76.4mm; bore 102.7 mm; 465 bhp (342 kW) at 8,000rpm; max. torque 430 Nm at 7,250rpm; air restrictors 2 x 29.5 mm; maximum engine speed 9,400rpm; four valves per cylinder; dry sump lubrication; individual throttle butterflies; central air intake; electronic MS 4.0 engine management; fuel injection; fuel grade: RON 98 Super Plus unleaded
Transmission
Six-speed gearbox with sequential jaw-type shift; oil/water heat exchanger; single-mass flywheel; hydraulic disengagement lever; three-plate carbon-fiber clutch; rear wheel drive; limited-slip differential 45/65 %
Body
Monocoque body (basis GT3 RS) of hot-galvanized steel; aerodynamically 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 (on driver's side only) with flame-resistant seat cover; 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 ancillary 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 aluminum fixed callipers; inner-vented, 380mm in diameter; racing brake pads
Rear: Single-piece four-piston aluminum fixed callipers; inner-vented, 355mm 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; adjustable traction control;
battery: 12 volt, 50 Ah, 140 Ah alternator
Weight
Approx. 1,225 kg complying with A.C.O. regulations, 1,200 kg complying with FIA regulations
