HOMEHOME





Model

275 F1


Type


Formula 1 racing car.

Years of activity


1950

First race


Belgian Grand prix of 18.6.1950.

Engine


Type 275. 12 cylinders in 60° V. Front-mounted. Light alloy cylinder head and block, head in block with upper part of cylinders, screw-fitted cylinder liners, water cooled.

Bore and stroke


72 x 68 mm.

Unitary and total capacity


276.86 / 3,322.3 cc.

Compression ratio


10:1.

Max. power output


300 bhp at 7,300 rpm.

Timing gear


2 valves per cylinder, 1 overhead camshaft per bank of cylinders, chain drive.

Fuel feed


3 Weber 42 DCF twin-choke carburettors.

Ignition


Single, 2 Marelli magnetos.

Lubrication


Forced. Dry sump.

Transmission


Rear. Multi-plate clutch. Gearbox with 4 speeds + reverse in block with self-locking differential.

Gear ratios


Variable depending on racing circuit.

Frame


Tubular with elliptic section longitudinals.

Front suspension


Double wishbones, double triangles, transverse lower leaf springs, Houdaille lever dampers.

Rear suspension


De Dion axle, transverse lower leaf spring, 2 longitudinal struts, Houdaille lever dampers.

Steering


Worm and sector.

Brakes


Bimetallic drums on all four wheels, hydraulic control.

Tyres


Front 5.50x16, rear 7.00x16. Pirelli.

Rims


Spoked.

Wheelbase


2,420 mm.

Front/rear track


1,278 / 1,250 mm.

Length


3,937 mm.

Width


1,428 mm.

Height


960 mm.

Weight with water and oil


850 kg.

Fuel tank


195 litres of mixture. Rear-mounted.

Bodywork


Aluminium single-seater body.