Kyalami, 1 March 1969: Chris Amon in the South African Grand Prix
312 F1 - 1969
Formula 1 racing car.
Years of activity
South African Grand Prix of 1.3.1969.
Type 255/C. Rear-mounted. 12 cylinders in 60° V, light alloy cylinder block and head, press-fitted special cast iron cylinder liners, 116 mm connecting rod, lateral exhausts, water cooled.
Bore and stroke
77 x 53.5 mm.
Unitary and total capacity
249.129 / 2,989.556 cc.
Max. power output
436 bhp at 11,000 rpm.
4 valves per cylinder, 2 overhead camshafts per bank of cylinders, chain drive.
Lucas indirect injection.
Single. Coil-ignition, Marelli coil and Dinoplex transistorised capacitive discharge.
Forced with radiator. Dry sump.
Rear. Borg & Beck multi-plate clutch. 609 rear longitudinal overhanging gearbox with 5 speeds + reverse, ZF plunger-type differential.
Variable depending on racing circuit.
Type 609. Stress-bearing body: aluminium panels in double wall riveted to steel tube structure.
Double wishbone: upper arm, lower triangle, inboard spring/damper units and anti-roll bar.
Double wishbone: upper arm, inverted lower triangle, 2 longitudinal struts and anti-roll bar.
Rack and pinion.
Girling discs and callipers. Inboard at rear on differential housing, independent hydraulic circuits.
Front 5.00-10.00-13î, rear 6.00-13.50-15î. Firestone.
Cast light alloy. Front 10x13î. Rear 14x15î.
1,550 / 1,561 mm.
Weight with water and oil
180/220 litres. Pirelli rubber-canvas containers.
12 Volt Safa.
Aluminium single-seater body with composite elements.