This 911 GT1 ´98 sportscar represents the third generation of the Gran Turismo concept which began in 1996. On 23 February 1998 Bob Wollek rolls out with the new six-cylinder twin-turbo Porsche for the first time in Weissach.
The GT1 ´98 is the first racing sportscar from Porsche to feature a carbon fibre chassis as a monocoque, which reduces the weight by 100 kgs to 950 kilograms. More rigidity and the possibility of an optimized aerodynamic layout are further advantages of the new materials. The GT1 is 20 centimeters (4.89 metres) longer and five centimetres (1.99 metres) wider, whilst the height is lowered by three centimetres to 1.14 metres. The 100-litre fuel tank is now centrally located between the drivers‘ compartment and engine.
With two KKK turbo-chargers and 33.9 mm air restrictors, the 3.2-litre power unit delivers 550 hp (7,200 rpm). The power is transmitted to the rear axle via a sequential six-speed gearbox.
The suspension functions with double wishbones front and rear. The braking system features eight piston brake calipers at the front and six at the rear axle and 380 mm carbon fibre brake discs.
| Technical Specifications | |
|---|---|
| Engine: | 6-cylinder boxer, water-cooled, aluminium engine block and cylinder heads, 2 intake and 2 discharge valves per cylinder, 2 exhaust gas turbo chargers with air restrictors, 2 charce air intercoolers, dry sump lubrication, electronic engine management (TAG 3.8), fuel injection with Lambda control, cylinder selective knock control |
| Power: | Approx. 550 hp (400 kW) at 7.200 rpm |
| Displacement: | 3.220 cc |
| Fuel system: | 100-litre FT3 safety tank with integrated catchtank, rapid tank valve and reserve switch |
| Transmission: | 6-speed gearbox, sequential gear change, rear wheel drive, triple disc clutch, additional lubrication with oil pump and oil-to-water heat exchanger, self-locking differential |
| Chassis: | Carbon fibre monocoque, adjustable plastic rear wing, air inlet to turbo chargers on the roof, rollcage as supporting chassis member, air jack, double wishbones with pushrod front and rear, Bilstein shock absorbers front and rear, brakes, balance adjustable by driver, carbon brake discs front and rear |
| Dimensions and weight: | Length 4.890 mm width 1.990 mm weight 950 kg |