2009 Porsche 911 GT3 RSR – Hold Onto Your Hats
Many Le Mans championships have been taken home by Porsche thanks to their 911 GT3 racers in the past. So when it was time to update one of their fastest automobiles the German car maker took the Nine-Eleven to an all new level.
Porsche’s 4.0-liter boxer-six is capable of producing 450b horse power at 7800. The rev-limiter kicks in at 9,000 rpm, just in case you get a little ahead of yourself. Engine output is limited based on the class the GT3 RSR runs in, but it’s capable of more when properly opened up.
Not only will the 2009 Porsche 911 GT3 RSR be featured at the next American Le Mans competition, you can have one of your very own – if you have a spare $493,392 laying in a vault somewhere. Check out all the details in the Porsche Press Release below.
The successful Porsche 911 GT3 RSR takes off into the new model year with extensive modifications. The most powerful race car based on the Porsche 911, which last season secured wins in the American Le Mans Series and at the Nürburgring 24 Hours, competes in the GT2 class at international long distance races. The most distinguishing feature of the new GT3 RSR is the redesigned front with large air outlets on the front hood. Under the light-weight body shell, as well, major changes were made to the quickest 911.
Noticeable at first sight are the air outlet slots, or the so-called louvers, on the front hood: an indication of the completely redesigned air ducting of the radiators, which became necessary through the new design of supply and discharge air with the installation of an optional air-conditioning unit. The aerodynamics under the rear underwent further optimization. The rear wing now features a wider adjustment range. The weight-optimized brake system and the lighter wiring harness contribute to further improved handling, compared to the predecessor model.
The capacity of the well-known six-cylinder boxer engine increased from 3.8 to 4.0-litres. After another reduction in the size of the air restrictors for the 2009 season, the engine now delivers around 450 hp (331 kW) at 7,800 revs per minute and develops a maximum torque of 430 Nm at 7,250 rpm. The rev limiter of the efficient six-cylinder unit kicks in at 9,000 rpm. Compared to the forerunner, the rev level for a given power output was significantly lowered. Thanks to this, the engine features an optimized torque curve and offers better driveability.
In the cockpit, a new multi-function display located above the dashboard indicates the moment to change gears. Another new feature is the programmable multi-function, onboard supply system control device, giving teams the choice of many individual functions. One of these is the infinitely adjustable blinking frequency of the lights in the front apron, which helps to immediately recognize race cars when they enter the pits in the dark. For eas-ier servicing under race conditions, other modifications were made. The GT3 RSR now features a new air-jack system with overpressure valve. The oil refill with fast filling function has now moved to the rear lid, giving mechanics better access.
Aside from GT3 Cup and the GT3 Cup S, the GT3 RSR is the third race car based on the Porsche 911 offered by Porsche Motorsport. About 20 of the successful long distance racers have been built in Weissach and are now being delivered to customer teams around the world. The GT3 RSR costs 380,000 Euro plus VAT specific to each country.
Technical Description Porsche GT3 RSR (2009)
Engine: Water-cooled, six-cylinder boxer engine; four valves
per cylinder; dry sump lubrication; individual throttle
butterflies; fuel injection; air restrictors 2 x 29.5 mm.
Bore: 102.7 mm
Stroke: 80.4 mm
Capacity: 3,996 cc
Power output: 331 kW (450 bhp) at 7,800 rpm
Max. Torque: 430 Nm at 7,250 rpm
Max. revs: 9,400 rpm
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 GT3 RS) of hot-galvanized steel;
aerodynamically optimized front end with front spoiler;
aerodynamically optimized front underfloor; adjustable
rear wing; 90-liter 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.
Front Suspension: 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 calipers;
inner-vented, 380 mm in diameter; racing brake pads.
Rear: Single-piece four-piston aluminum fixed calipers;
inner-vented, 355 mm in diameter; racing brake pads.
Front Wheels: 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.
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