  Mike Parkes |
 Model 312 F1 - 1966
Formula 1 racing car.
Years of activity 1966/1967.
First race Siracusa Grand Prix of 1.5.1966.
Engine Type 218. Rear-mounted. 12 cylinders in 60° V (derived from 216), light alloy cylinder block and head, press-fitted special cast iron cylinder liners, 126 mm connecting rod, water cooled.
Bore and stroke 77 x 53.5 mm.
Unitary and total capacity 249.1297 / 2,989.556 cc.
Compression ratio 11.8:1.
Max. power output 360 bhp at 10,000 rpm.
Timing gear 2 valves per cylinder, 2 overhead camshafts per bank of cylinders, chain drive.
Fuel feed Lucas indirect injection.
Ignition Double. 2 coil-ignition units and 4 coils.
Lubrication Pressurised with radiator. Dry sump.
Transmission Rear. Borg & Beck multi-plate clutch, 589 rear longitudinal overhanging gearbox with 5 speeds + reverse, self-locking plunger-type differential.
Gear ratios Variable depending on racing circuit.
Frame Type 589. Stress-bearing body. Aluminium panels in double wall riveted to steel tube structure.
Front suspension Double wishbone, upper arm, lower triangle, inboard spring/damper units, anti-roll bar.
Rear suspension Double wishbone: upper arm, inverted lower triangle, 2 longitudinal struts and anti-roll bar.
Steering Rack and pinion.
Brakes Girling discs and callipers. Inboard at rear on differential housing, independent hydraulic circuits, 2 pumps.
Tyres Front 5.50x14î, rear 7.00x14î. Dunlop.
Rims Cast light alloy. Front 7.50x14î. Rear 9.50x14î.
Wheelbase 2,400 mm.
Front/rear track 1,450 / 1,435 mm.
Length 3,830 mm.
Width 760 mm.
Height 870 mm.
Weight with water and oil 610 kg.
Fuel tank 158 litres in 5 Pirelli rubber containers.
Alternator/dynamo Marelli DSAE 4081 B.
Battery 12 Volt Safa.
Bodywork Aluminium single-seater body with composite elements.
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