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Phil Hill, Drivers' World Champion in 1961



Model

156 F1

Type


Formula 1 racing car.

Years of activity


1961/1962.

First race


Monte Carlo Grand Prix of 14.5.1961.

Engine


Rear. New type 178. 6 cylinders in 120° V. Light alloy cylinder block and heads. Press-fitted aluminium cylinder liners. 126 mm connecting rod. Water cooled.

Bore and stroke


73 x 58.8 mm.

Unitary and total capacity


246.1 / 1,476.60 cc.

Compression ratio


9.8:1.

Max. power output


190 bhp at 9,500 rpm.

Timing gear


2 valves per cylinder, 2 overhead cams per bank of cylinders, chain drive at front.

Fuel feed


Single with two 40 IF 3C three-choke downdraft Weber carburettors.

Ignition


Double. 2 Marelli coil-ignition units and Marchal 32 H FS sparkplugs.

Lubrication


Forced, with oil radiator and dry sump.

Transmission


Rear. Dry, multi-plate clutch behind gearbox, damper springs. 543/C overhanging longitudinal gearbox with 5 speeds + reverse. Plunger type limited slip differential.

Gear ratios


Variable depending on racing circuit.

Frame


Type 543/C. Steel tube frame.

Front suspension


Double wishbones: double overlapping triangles, coil springs and coaxial telescopic dampers.

Rear suspension


Double wishbones: double overlapping trapeziums, coil springs and coaxial telescopic dampers.

Steering


Rack and pinion with damper.

Brakes


Dunlop discs and callipers. Inboard at rear on the transmission housing. Independent circuits with double pump.

Tyres


Front 5.00x15, rear 6.00x15. Dunlop.

Rims


Spoked light alloys.

Wheelbase


2,320 mm.

Front/rear track


1,200 mm / 1,200 mm.

Length


4,060 mm.

Width


865 mm.

Height


1,000 mm.

Weight with water and oil


460 kg.

Fuel tank (litres)


150. Two 75-litre tanks at sides. (Petrol NO 98/100).

Bodywork


Aluminium single-seater body.