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Overview

Ferrari 735 S - 1953

1953

735 S

The in-line 4-cylinder Ferrari engine started out its career in the 1950 Formula 2 Championship. This engine type had proved itself a winner on both twisty and fast circuits and so it was decided to transfer the technology to sports cars. Testing carried out on a 250 MM chassis produced encouraging results and so, bored out to 3,000 cc, the engine made its debut in the new 735 S, demonstrating great potential from its very first outing on the Senigallia track. The races which followed confirmed its prowess and it was decided that it should be further developed.

Specifications

V4 Engine

Type front, longitudinal, in-line-four
Bore/stroke 102 x 90 mm
Unitary displacement 735.41 cc
Total displacement 2941.66 cc
Compression ratio 9 : 1
Maximum power 165 kW (225 hp) at 6800 rpm
Power per litre 76 hp/l
Maximum torque -
Valve actuation twin overhead camshaft per bank, two valves per cylinder
Fuel feed two Weber 50 DCOA carburettors
Ignition two spark plugs per cylinder, two coils
Lubrication dry sump
Clutch twin-plate
Frame tubular steel
Front suspension independent, unequal-length wishbones, transverse leaf spring, hydraulic shock absorbers
Rear suspension de Dion, twin radius arms, transverse leaf spring, hydraulic shock absorbers
Brakes drums
Transmission 4-speed + reverse
Steering worm and sector
Fuel tank capacity 125 litres
Front tyres 5.25 x 16
Rear tyres 6.00 x 16
Type two-seater spider
Length -
Width -
Height -
Wheelbase 2250 mm
Front track 1278 mm
Rear track 1284 mm
Weight 750 kg (kerb)
Top speed -
Acceleration 0-100 km/h -
0-400 m -
0-1000 m -