The 962 is, under the direction of Norbert Singer, initially created for Porsche customers in the USA where it is intended for the IMSA racing series. The 956 serves as the basis. The IMSA regulations stipulate that the drivers‘ feet must not be further forward than the mid-front axle. In response, Singer increases the wheelbase to 2.77 metres, resulting in modifications to the monocoque and downsizing of the front overhang in order not to increase the overall length. The aerodynamics are modified accordingly. A 2,869-litre two-valve unit with just one turbo charger proves to be the best permissable engine option. In this specification the minimum weight is 850 kilograms. Gearbox and clutch as well as suspension can be taken from the 956, though springs and dampers are adjusted to the new vehicle. The capacity of the fuel tank is increased to 120 litres.
For competition in the World Endurance Championship and in Le Mans Porsche prepares a version with a 2.65-litre engine, two turbo-chargers and a water-cooled cylinder head.
The green light for the 962 project is received mid-October 1983. On 17 October the sketches begin for the new monocoque. On 23 December the monocoque is ready, the first test engine is fitted. On 24 January the first 962 is ready to drive, one day later tests begin on the Paul Ricard circuit. In the evening 450 kilometres at racing speed are completed. On 27 January the first 962-001 leaves Stuttgart for Florida where it makes an honorable debut by posting pole position.
In the following years Porsche builds 91 more 962 vehicles. Over the next decade the 962 will become the most successful sportscar in history, which in the IMSA series alone notches up 54 victories, 40 of which are between 1985 and 1987.
|Engine:||Six-cylinder horizontally opposed engine, air-cooled, overhead camshaft on each cylinder bank, dry sump lubrication|
|Power:||680 bhp (500 kW) at 8.200 rpm|
|Fuel system:||Fully electronic fuel injection, two turbochargers, intercooler, 120-litre safety fuel tank|
|Transmission:||Five-speed transmission, rigid drive-through plus additional lubrication with oil filter and radiator|
|Chassis:|| Aluminium monocoque, riveted, with integrated roll cage, seven-piece GRP Kevlar integrated aluminium shell, hydraulic dual-circuit disc brakes with internally vented, cross-drilled brake discs
Front axle: double wishbone with titanium springs and Bilstein shock absorbers fitted externally
Rear axle: double wishbone with titanium springs and Bilstein shock absorbers fitted internally
|Dimensions and weight:||Wheelbase 2.770 mm
length 4.770 mm
width 1.990 mm
weight 850 kg
|Performance:||Approx. 350 km/h (217.5 mph)|