| 4CLT 1.5 L I-4 250S 2.5 L I-4 Tipo 6-1500 1.5 L I-4 4CF2 1.5 L I-4 42CF 2.0 L I-4 | |
|---|---|
| Overview | |
| Manufacturer |  Maserati |
| Production | 1950 – 1951, 1959 – 1963 |
| Layout | |
| Configuration | L-4 |
| Displacement | 1.5–2.5 L (91.5–152.6 cu in) |
| Cylinder bore | 78 mm (3.1 in) |
| Piston stroke | 78 mm (3.1 in) |
| Valvetrain | 16-valve, DOHC, 4-valves per cylinder |
| Compression ratio | 6:1-6.5:1 |
| Combustion | |
| Fuel system | Carburetor/Electronic fuel injection |
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Output | |
| Power output | 150–280 hp (112–209 kW; 152–284 PS) |
| Torque output | approx. 105–210 lb⋅ft (142–285 N⋅m) |
| Dimensions | |
| Dry weight | 165 kg (364 lb) [1] |
| Chronology | |
| Successor | Maserati 6-cylinder F1 engine |
Maserati has made three inline-4 racing engines, that were designed for both Formula One and Sports car racing. Their first engine was the supercharged 4CLT engine in 1950; with the 1.5 L engine configuration imposed by the FIA for engines with forced induction. [2] [3] [4] Their second engine was the naturally-aspirated 250S engine; with the 2.5 L engine configuration, and was used by Cooper and JBW. Their third and final engine was the naturally-aspirated Tipo 6-1500; with the 1.5 L engine configuration, and the customer engine was used by Cooper, Emeryson, Lotus, and E.N.B. teams. [5]
A 1.5 L (92 cu in) version of the engine was used in the Maserati 150S, (as well as the Maserati 150 GT concept car [6] [7] [8] ) [9] [10] [11] [12] and a 2.0 L (120 cu in) version of this engine was also used in the 1955-1959 Maserati 200S sports car. [13] [14] [15] [16] [17] [18]
