Maserati 4CM
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 1933 Maserati 4CM | |
| Designer | Maserati |
|---|---|
| Production | 1932-1938 |
| Predecessor | Maserati Tipo 26 |
| Successor | Maserati 6CM |
| Technical specifications | |
| Chassis | Steel box-section frame, aluminum body |
| Suspension (front) | Rigid axle, semi-elliptic leaf springs, friction shock absorbers |
| Suspension (rear) | Live axle, semi-elliptic leaf springs, friction shock absorbers |
| Length | 3,680–4,000 mm (145–157 in) |
| Width | 1,480–1,500 mm (58–59 in) |
| Height | 1,200–1,350 mm (47–53 in) |
| Axle track | 1,200 mm (47 in) (front and rear) |
| Wheelbase | 2,400 mm (94 in) |
| Engine | 1.1–2.5 L (67–153 cu in) I4 FR layout |
| Transmission | 4 speed manual transmission |
| Weight | 580 kg (1,280 lb) |
| Competition history | |
The Maserati 4CM is an open-wheel Grand Prix motor racing car, designed, developed and built by Italian manufacturer Maserati, in 1931.[2][3]
In 1930, Maserati decided to concentrate its efforts on the voiturette class, which was not contested by German manufacturers such as Mercedes-Benz and Auto Union. The 1,100 cc (1.1 L; 67 cu in) Tipo 4CM was Maserati's first racing voiturette.[4] The name of the car is derived as follows: 4: 4-cylinder engine; C: Corsa, for racing; M: Monoposto, for single seater.
Built alongside the 4CS two-seater sports-racer, the 4CM was powered by a 1,088.4 cc (66.42 cu in), (65 x 82 mm) twin-overhead-camshaft supercharged four-cylinder engine that produced 125 hp (92 kW) at 6,600rpm, an output sufficient to propel it to a top speed of 210 km/h (130 mph). Some cars came with a spare cylinder block, pistons, connecting rods and supercharger enabling it to be converted to 1,495.7 cc (1.4957 L; 91.27 cu in), (69 x 100 mm) when required. Depending on the size of the engine, the roots-type supercharger boosted power to 90–150 hp (66–110 kW).[5][6]
It succeeded the Maserati Tipo 26M, and was itself slowly replaced by the Maserati 6CM around 1936.[7][8]
