| Dino 246 2.4 L V6 engine Dino 156 1.5 L V6 engine Tipo 228 2.4 L V6 engine | |
|---|---|
| Overview | |
| Manufacturer |  Ferrari |
| Production | 1958–1966 |
| Layout | |
| Configuration | 65° V6 |
| Displacement | 1.5 L (1,476 cc) 2.4 L (2,417 cc) |
| Cylinder bore | 73 mm (2.9 in) 85 mm (3.3 in) |
| Piston stroke | 58.8 mm (2.3 in) 71 mm (2.8 in) |
| Compression ratio | 9.8:1[1][2][3][4] |
| Combustion | |
| Fuel system | Carburetor |
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Output | |
| Power output | 185–295 hp (138–220 kW; 188–299 PS)[5] |
| Torque output | 102.5–187 lb⋅ft (139–254 N⋅m) |
| Dimensions | |
| Dry weight | 135 kg (298 lb) |
| Chronology | |
| Successor | Ferrari turbocharged V6 F1 engine (1981-1988) |
Ferrari made four naturally-aspirated V6 racing engines designed for Formula One; between 1958 and 1966. The Formula One regulations for 1954–1960 limited naturally aspirated engines to 2500 cc, and for the 1958 season, there was a change from alcohol fuels to avgas. The 246 F1 used a 2,417.34 cc (2.4 L; 147.5 cu in) Dino V6 engine with a 65° angle between the cylinder banks.[6] The power output was 280 PS (206 kW; 276 hp) at 8500 rpm. This was the first use of a V6 engine in a Formula One car, but otherwise the 246 F1 was a conventional front-engine design. The Ferrari 246 F1 was good enough to win a World Championship for Mike Hawthorn and a second place in the Constructors' Championship for Ferrari.[7]
The Ferrari 246 F1 was not only the first V6-engined car to win a Formula One Grand Prix, the French Grand Prix at Reims in 1958, it was also the last front-engined car to win a Formula One Grand Prix. This occurred at the 1960 Italian Grand Prix at Monza, where the major British teams boycotted the race.[8]
In 1959, to make full use of the allowed capacity regulations, Ferrari enlarged the bore of the Dino V6 engine of the 246 F1 car by 1 mm to 86 mm. This allowed the total displacement to rise to 2,474.54 cc (151 cu in). The resulting power output was now 295 PS (217 kW; 291 hp) at 8600 rpm. The new car also received disc brakes as standard and a five-speed gearbox. Only Tony Brooks raced this model but he was outpaced by the mid-engined British cars. He still won in the French and German Grands Prix.[9]
In 1960, the Ferrari 246 designation was also used for the first mid-/rear-engined Ferrari, the 246 P Formula One car (using same Dino V6 engine of 2,417.34 cc (148 cu in)), and then again in 1966 for Ferrari's first three-litre era Formula One car.
Ferrari started the season with a 65-degree Dino engine, then replaced by a new engine with the V-angle increased to 120-degrees and designed by Carlo Chiti. A V-6 engine with 120-degree bank is smoother at producing power because every 120-degree rotation of engine crankshaft produces a power pulse. This change increased the power by 7 kW (10 hp). Bore and stroke were 73.0 mm × 58.8 mm (2.87 in × 2.31 in) with a displacement of 1,476.60 cc (90.108 cu in) and a claimed 140 kW (188 hp) at 9500 rpm.[10] For 1962, a 24-valve version was planned with 147 kW (197 hp) at 10,000 rpm, but never appeared.[11]
- ^ "Ferrari 246 F1 (1958) - Ferrari.com". www.ferrari.com. Retrieved 1 April 2023.
- ^ "Ferrari 256 F1 (1959) - Ferrari.com". www.ferrari.com. Retrieved 1 April 2023.
- ^ "Ferrari 156 F1 (1961) - Ferrari.com". www.ferrari.com. Retrieved 1 April 2023.
- ^ "Specifications of 50 famous racing engines up to 1994 - Page 9 - F1technical.net". www.f1technical.net. Retrieved 1 April 2023.
- ^ "Engine Ferrari • STATS F1". www.statsf1.com. Retrieved 7 October 2021.
- ^ 1958 Ferrari 246 F1 on www.f1technical.net
- ^ "Ferrari 246 F1". formula1.ferrari.com. Retrieved 22 September 2019.
- ^ 1960 Italian Grand Prix on 8w.forix.com
- ^ "Ferrari 256 F1". formula1.ferrari.com. Retrieved 22 September 2019.
- ^ "Ferrari 156 F1". formula1.ferrari.com. Retrieved 22 September 2019.
- ^ Blunsden, John (September 1962). "Skyfall över Tysklands GP" [Deluge on German GP]. Illustrerad Motor Sport (in Swedish). No. 9. Lerum, Sweden. p. 25.