The 911 GT3 Cup 2005 is designed for customer racing with near-series vehicles in accordance with the Porsche Michelin Supercup rules for 2005. The vehicle is handed over to the customer in racing condition and will be used exclusively during the 2005 Porsche Michelin Supercup. The new GT3 Cup is a further step towards a pure-bred racing car.
The chassis has been thoroughly revised and now allows for a higher degree of precision and improved driving dynamics. For the first time, Porsche will be deploying the revolutionary Porsche Ceramic Composite Brake (PCCB) in the GT3 Cup 2005. Additionally, the vehicle has a sequential transmission with tractive power interruption, which allows upshifts at full throttle. Conclusion: the new 911 GT3 Cup is the most powerful vehicle in its history.
Engine:
flat six-cylinder boxer engine
3,598 cc, stroke 76.4 mm, bore 100 mm diameter
max. power: 294 kW (400 hp) at 7,300 rpm
max. torque: 400 Nm at 6,500 rpm
max. rpm: 8,200 rpm
four valves per cylinder
water-cooled
dry-sump lubrication
two-stage resonance intake manifold, central inlet air duct
electronic engine management system MS 3.1
sequential multi-point fuel injection
required fuel quality: 98 octane ROZ, unleaded
race exhaust system with lambda-probe-equipped catalytic converter
twin-branch center exhaust tailpipe
Power
Train
six-speed sequential dog-type gearbox
gear ratios: ring & pinion gear 8/32 i = 4.01st gear 12/38 i = 3.16
2nd gear 15/32 i = 2.13
3rd gear 18/31 i = 1.72
4th gear 20/28 i = 1.40
5th gear 26/30 i = 1.15
6th gear 28/27 i = 0.96
pressure-oil lubrication
oil-water heat exchanger
single-mass flywheel
hydraulic clutch center-release mechanism
5.5“ triple-disc sintered-metal clutch
limited slip differential 40/60 per cent
rear-wheel drive
Bodywork:
self-supporting
bodyshell made out of galvanised sheet steel
carbon fibre doors with window frame and plastic rear-view mirrors
carbon fibre rear lid with adjustable rear wing
welded-in roll cage
air jack system
aerodynamically optimized front bumper and front spoiler edge
carbon fibre rear bumper
racing seat (driver side only) with fire retardant upholstery
six-point seat belt
removable steering wheel (with quick-release coupling)
electric fire extinguishing system
64 liter fuel tank
Vehicle weight: approx. 1,150 kg
Suspension:
Front
Axle
McPherson strut-type axle
Sachs gas pressure shock absorbers
double coil springs (main spring and helper spring)
two-piece lower control arms for camber adjustment
blade-type anti-roll bar
damper mounted to upright with twin-clamp system
power steering with electro-hydraulic pressure feed
three-piece BBS center-lock aluminium rims (9J x 18), rim offset 43
Michelin rain tires (24/64-18)
Rear
Axle
multilink rear suspension with solidly mounted subframe
Sachs gas pressure shock absorbers
double coil springs (main spring and helper spring)
two-piece lower control arms for camber adjustment
reinforced, continuously variable rear axle track rod
blade-type anti-roll bar
suspension continuously variable adjustable (heights, camber, track)
three-piece BBS center-lock aluminium rims (11J x 18), rim offset 30
Michelin rain tires (27/68-18)
Brake
System:
brake system with adjustable bias bar
front aluminium six-piston calipers, single-piece
internally vented brake discs, 380 mm diameter, race brake pads
rear aluminium four-piston caliper, single-piece
internally vented brake discs, 350 mm diameter, race brake pads
Electric System
Motec
display with integrated data recording
battery: 12 Volt, 50 Ah
90 Ah generator
