Juan Manuel Fangio, Drivers' World Champion with Ferrari in 1956 |
Model D 50
Formula 1 racing car.
Years of activity 1955/1956/1957.
First race International Oulton Gold Cup Meeting of 24.9.1955.
Engine 8 cylinders in 90° V, aspirated, front-mounted, light alloy cylinder block and head, press-fitted cast iron cylinder liners, 135 mm connecting rod, water cooled.
Bore and stroke 76 x 68.5 mm.
Unitary and total capacity 310.75 / 2,485.98 cc.
Compression ratio 11.9:1.
Max. power output 265 bhp at 8,000 rpm.
Timing gear 2 valves per cylinder, 2 overhead camshafts per bank of cylinders, chain drive.
Fuel feed 4 Solex 40 PII vertical twin choke carburettors.
Ignition Double. 2 Marelli magnetos.
Lubrication Forced with dry sump.
Transmission Rear. Dry, twin-plate clutch, rear transverse gearbox with 5 speeds + reverse, in block with self-locking differential.
Gear ratios Variable depending on racing circuit.
Frame Steel tube structure.
Front suspension Double wishbones: double triangles, transverse lower leaf spring, telescopic inboard dampers connected to wheels by rocker arms.
Rear suspension De Dion axle, transverse upper leaf spring, Houdaille lever dampers.
Steering Worm and sector.
Brakes Drums on all four wheels with hydraulic control.
Tyres Front 5.50x16î, rear 7.00x16î. Englebert.
Rims Spoked, light alloy.
Wheelbase 2,280 mm.
Front/rear track 1,270 / 1,270 mm.
Length 3,850 mm.
Width 1,448 mm.
Height 962 mm.
Weight with water and oil 640 kg.
Fuel tank 190 litres of mixture. rear mounted.
Bodywork Aluminium single-seater body. Single unit with false side fuel tanks with purely aerodynamic function between the wheels.
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