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Overview

Ferrari 315 S - 1957

1957

315 S

Fitted with a V12 with four chain-driven overhead camshafts, the 315 S signalled a major advance on the single camshaft engine. In addition to being more powerful, the engine was also nine kilos lighter and more reliable to boot. At the tragic 1957 Mille Miglia, the scene of De Portago’s devastating accident, Piero Taruffi drove the 315 S to victory in what was also to be the final race of his career.

Specifications

V12 Engine

Type front, longitudinal 60° V12
Bore/stroke 76 x 69.5 mm
Unitary displacement 315.28 cc
Total displacement 3783.40 cc
Compression ratio 9 : 1
Maximum power 265 kW (360 hp) at 7800 rpm
Power per litre 95 hp/l
Maximum torque -
Valve actuation twin overhead camshafts per bank, two valves per cylinder
Fuel feed six Weber 42 DCN carburettors
Ignition twin plugs, four coils
Lubrication dry sump
Clutch multi-plate
Frame tubular steel
Front suspension independent, unequal-length wishbones, coil springs, 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 -
Front tyres 6.00 x 16
Rear tyres 7.00 x 16
Type two-seater spider
Length -
Width -
Height -
Wheelbase 2350 mm
Front track 1296 mm
Rear track 1310 mm
Weight 880 kg (dry)
Top speed 290 km/h
Acceleration 0-100 km/h -
0-400 m -
0-1000 m -