Porsche recently unveiled its latest GT2-class racing car, the GT3 RSR. If you’re wondering, the biggest difference for ’09 is up front where a substantially louvered hood replaces the rather regular hood of the outgoing model. The reason of it being substantially louvered is because the car’s radiator ductwork has been redesigned to accommodate the racers optional air-conditioning system.
Aero tweaks include a rear wing angle that’s more adjustable than on last year’s car. The brakes and wiring harness contribute to lighter weight, and inside the pilot gets a new multifunction display. There’s also a revised supply system that allows for an infinitely adjustable blink rate for the front lights. That makes for easy night-time identification when the car pits. The oil filler has been relocated for easier access, and the GT3 RSR is equipped with a new air jack, as well.
The GT3 RSR is powered by a rear-mounted six-cylinder engine with displacement now up to 4-liters to the 3.8-liter of last year. What is baffling is that last years car produced 465hp@8000 rpm but this years car puts out 450hp@7,800rpm – the difference is not much and it could be down to sacrificing power for reliability. Torque is the same as last year at 430Nm@7,250rpm.
The rev limiter kicks in at 9K, and Porsche says that the new car’s torque curve is better-optimized than the outgoing car’s. The new RSR ought to become a common sight in the Le Mans series on both sides of the Atlantic, as Porsche resumes its annual battle with Ferrari in sports car racing. Want one? Give Porsche €380,000 or roughly about RM1.71million and you’re good to go. Tech specs are pasted below:
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-galvanised 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 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.
