2008
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Porsche GT3 Cup SStuttgart. Dr. Ing. h. c. F. Porsche AG, Stuttgart, adds another member of the 911 family to its range of products. The new GT3 Cup S, based on the road-going GT3 RS sportscar, is created exclusively for racing purposes.
Technical Specifications Porsche GT3 Cup S Power Unit Water-cooled six-cylinder boxer; 3,598 cc; stroke 76.4 mm; bore 99.98 mm; max output 440 bhp (324 kW); max torque 430 Nm; max engine speed 8,400 rpm; four-valve technology; dry sump lubrication; two-stage resonance intake distributor; central air intake; electronic MS 3.1 engine management; fuel injection (multi-point, sequential); fuel grade 98 RON premium plus unleaded. Power Transmission Six-speed gearbox with sequential jaw-type shift; compressed oil lubrication; oil/water heat exchanger; single-mass flywheel; hydraulic disengagement lever; 5.5-inch three-plate carbon-fibre clutch; limited-slip differential 40/60 %; rear-wheel drive. Body
Suspension Front: McPherson spring strut axle; Sachs gas pressure dampers; double coil springs (main and ancillary spring); 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 gas pressure dampers; double coil springs (main and ancillary spring); rear axle track arm adjustable for camber; rear axle tie-bar reinforced and infinitely adjustable; adjustable sword-type anti-roll bar. 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 (10.5J x 18); central locking; Rear: Three-piece BBS light-alloy wheels (12J x 18); central locking; Electrical System Motec display with integrated data recording; battery: 12 volt, 50 Ah, 140 Ah alternator. Weight Approx 1,170 kg
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The Weissach-developed and built vehicle will race in international
champion-ships which run in accordance with FIA GT3 regulations. To a large
extent, the 3.6-litre boxer engine is identical to the power unit used in
the Porsche Mobil1 Supercup and the international Carrera Cup championships.
Power output has increased by 20 horsepower to now 440 hp (324 kW) at 8,000
rpm. Maximum torque is up by ten Nm to 430 at 7,250 revs per minute. The
power increase results from optimised engine electronics and a modified exhaust
system. In contrast to the GT3 Cup, the body of the Cup S is not based on
the road-going GT3 but on the GT3 RS. In the wider wheel arches, considerably
larger wheels can now be mounted. At the front, the rims measure 10.5 inches
in width with 12 inch wheels fitted at the rear. The front section and flares
are significantly different to the GT3 Cup components. An adjustable
front-splitter generates more downforce at the front axle. The rear-wing
is wider and positioned higher than the Cup version and provides more downforce
at the rear axle..
Several suspension components for the GT3 Cup S have been taken
from the more powerful GT3 RSR which races in the GT2 class at international
long-distance championships. The braking system of the GT3 Cup S was adjusted
to the increased power compared to the GT3 Cup. At the rear the diameter
of the brake discs has grown by five millimetres to now measure 355mm. The
new GT3 Cup S costs 250,000 Euro plus national VAT and is scheduled for delivery
to customer teams from April. Additionally, Porsche offers a kit to upgrade
the 2007 Cup models to the GT3 Cup S standard.
Monocoque body made of hot-galvanised steel; aerodynamically
optimised front end with front spoiler; doors with side frames made of CFP
and plastic wing mirrors; aerodynamically optimised front underfloor; adjustable
rear wing; 100-litre safety fuel tank; 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.