1953 Ferrari 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.
Ferrari 735 S Technical Specifications
Year of Manufacture – 1953
| 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 | |
| CHASSIS | ||
| 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 | |
| BODYWORK | ||
| type | two-seater spider | |
| length | – | |
| width | – | |
| height | – | |
| wheelbase | 2250 mm | |
| front track | 1278 mm | |
| rear track | 1284 mm | |
| weight | 750 kg (kerb) | |
| PERFORMANCE | ||
| top speed | – | |
| acceleration 0-100 km/h | – | |
| 0-400 m | – | |
| 0-1000 m | – | |