Overview
1958
312 S
The only 312 S ever built was chassis no. 0744 (chassis design type 524) and was powered by a Tipo 142 engine with twin overhead camshafts. Its only race was the Spa-Francorchamps Grand Prix on May 18th 1958 from which Olivier Gendebien was forced to retire with gearbox woes on the fourth lap. After that the car was modified and renamed the 412 S.
Specifications
V12 Engine
| Type | front, longitudinal 60° V12 |
| Bore/stroke | 73 x 58.8 mm |
| Unitary displacement | 246.10 cc |
| Total displacement | 2953.21 cc |
| Compression ratio | 9.4 : 1 |
| Maximum power | 235 kW (320 hp) at 8400 rpm |
| Power per litre | 108 hp/l |
| Maximum torque | - |
| Valve actuation | twin overhead camshaft per bank, two valves per cylinder |
| Fuel feed | six Weber 42 DCN carburettors |
| Ignition | single spark plug per cylinder, two magnetos |
| Lubrication | dry sump |
| Clutch | multi-plate |
| Frame | tubular steel |
| Front suspension | independent, unequal-length wishbones, coil springs, telescopic shock absorbers |
| Rear suspension | de Dion, twin radius arms, transverse leaf spring, telescopic shock absorbers, anti-roll bar |
| Brakes | drums |
| Transmission | 4-speed + reverse |
| Steering | worm and sector |
| Fuel tank | capacity 196 litres |
| Front tyres | 6.00 x 16 |
| Rear tyres | 7.00 x 16 |
| Type | two-seater spider |
| Length | - |
| Width | - |
| Height | - |
| Wheelbase | 2350 mm |
| Front track | 1328 mm |
| Rear track | 1310 mm |
| Weight | 750 kg (kerb) |
| Top speed | 280 km/h |
| Acceleration 0-100 km/h | - |
| 0-400 m | - |
| 0-1000 m | - |