30.-31.05.1970, Porsche 908/03 Spyder, Leo Kinnunen and Pedro Rodríguez, 1000-kilometre race Nürburgring (DE)

In 1970, Porsche is eager to defend the previous year’s title victory in the World Championship for Makes. The light and agile 908/03 Spyder is designed specifically for the Targa Florio and the Nürburgring-Nordschleife, with the 917 campaigned on very fast circuits. The 908/03 Spyder sports prototype tips the scales at 545 kilograms. Like in the 909 Bergspyder from 1968, the differential is mounted behind the gearbox, with the gearbox, engine and driver moved to the front, resulting in a very good weight distribution.

In 1970, the 908/03 Spyder wins both the Sicilian classic and the Nürburgring 1,000 kilometres. Another victory follows on the Nürburgring in 1971, however two accidents and a puncture thwart the charge of the 908/03 Spyders at the Targa Florio. Porsche wins the World Championship for Makes both years. Twelve Porsche 908/03 Spyders are built by the factory. The car exhibited here finishes second at the 1970 Targa Florio piloted by Leo Kinnunen/Pedro Rodriguez behind the winning sister vehicle driven by Jo Siffert/Brian Redman.

Technical data Porsche 908/03

Engine: Air-cooled flat engine, type 908, installed centre/lengthways
Cylinders: 8
Valves : 2 per cylinder, DOHC, chain drive
Bore x strok e: 85 x 66 mm
Displacement : 2,997 cm3
Fuel supply : Bosch fuel injection
Power : 370 hp at 8,400 rpm
Torque : 318.5 Nm at 8,000 rpm
Compression ratio : 10.4:1
Transmission : 5-speed drive, differential lock, rear wheel
Frame : Aluminium tube frame
Body : Foam-reinforced plastic
Chassis : FA double wishbone, longitudinal tension strut, coil spring, shock absorbers, anti-roll bar; RA double wishbone, longitudinal thrust strut, coil spring, shock absorbers, anti-roll bar
Wheelbase : 2,300 mm
Track : FA 1,542 mm, RA 1,564 mm
Wheels : FA 9.5 x 13 or 11 x 13; RA 14 x 13 or 15 x 15 inch
Steering : Gear rack
Brakes : Discs, perforated
Length/Width/Height : 3,540/1,950/680 mm
Weight : 545 kg
Max Speed : approx. 275 km/h
Period : 1969 to 1971
Units built : 13