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Ferrari 275/340/375 F1
Race Car
Category Formula One
Constructor Ferrari
Chassis Longitudinal and cross members
Suspension (front) Independent, double wishbones, transverse semi-elliptic springs, Houdaille dampers
Suspension (rear) De Dion axle, oscillating drive shafts, transverse semi-elliptic springs, Houdaille dampers
Engine Ferrari 275 F1: 3.3L V12(60°)

Ferrari 340 F1: 4.1L V12(60°)

Ferrari 375 F1: 4.5L V12(60°)

Power Ferrari 275 F1: 300 hp @ 7300 rpm

Ferrari 340 F1: 335 hp @ 7000 rpm

Ferrari 375 F1: 380 hp @ 7500 rpm

Transmission 4 speed (5 speed, Ferrari 275), Rear-wheel-drive
Fuel {{{Fuel}}}
Tyres {{{Tyres}}}
Notable entrants {{{Notable Entrants}}}
Notable drivers {{{Notable Drivers}}}
Debut 1950 Belgian Grand Prix
Races competed {{{Races Competed}}}
Race victories {{{Race Victories}}}
Constructors' Championships {{{Constructor's Championships}}}
Drivers' Championships {{{Driver's Championships}}}
Pole positions {{{Pole Positions}}}
Fastest laps {{{Fastest Laps}}}
Designer Aurelio Lampredi
See also the 275, 340, and 375 road cars sharing the same engine

After finding only modest success with the supercharged 125 F1 car in Formula One, Ferrari decided to switch for 1950 to the naturally aspirated 4.5 L formula for the series. Calling in Aurelio Lampredi to replace Gioacchino Colombo as technical director, Enzo Ferrari directed that the company work in stages to grow and develop an entirely new large-displacement V12 engine for racing.

The first outcome of Lampredi's work was the experimental 275 S. Just two of these racing barchettas were built, based on the 166 MM but using the experimental 3.3 L V12. These were raced at the Mille Miglia of 1950 on April 23, 1950. Although one car held the overall lead for a time, both were forced to retire with mechanical failure before the end.

The 275 F1 bowed at the Grand Prix of Belgium on June 18, sporting the same 3.3 L (3322 cc/202 in³) version of Lampredi's new engine. With three Weber 42DCF carburettors, a single overhead camshaft for each bank of cylinders, and two valves per cylinder, the engine produced a capable 300 hp (224 kW) at 7200 rpm. Alberto Ascari drove the car to fifth place, marking the end of the 3.3 L engine.

The 275 was replaced at the Grand Prix of Nations at Geneva on July 30, 1950 by the 340 F1. As the name suggests, the car sported a larger 4.1 L (4101.66 cc/250 in³) version of Lampredi's V12. Other changes included a new de Dion tube rear suspension based on that in the 166 F2 car and four-speed gearbox. It had a longer 2420 mm (95 in) wheelbase, but other dimensions remained the same. With 335 hp (250 kW), Ascari was able to keep up with the Alfa Romeo 158 of Juan Manuel Fangio but retired with engine trouble. Although the 340 proved itself capable, it was only the middle step in Ferrari'a 1950 car development.

File:Ferrari 375 Indy 500.jpg

Ferrari achieved the 4.5 L goal of the formula with the 375 F1, two of which debuted at Monza on September 3, 1950. This 4.5 L (4493.73 cc/274 in³) engine produced roughly the same power as its 4.1 L predecessor, but its tractability earned Ascari second place in that debut race. A series of modifications through the 1951 season allowed Ferrari to finally put Alfa Romeo behind it in a Formula One race, with Jose Froilan Gonzalez' victory at Silverstone on July 14 becoming the constructor's first World Championship win. Ascari's wins at the Nürburgring and Monza and strong finishes throughout the season cemented the company's position as a Formula One contender.

Changes in the Formula One regulations led the company to shift the big engine to an Indy car, the 1952 375 Indy. Three new Weber 40IF4C carburettors brought power output to 400 hp (298 kW), the wheelbase was lengthened, and the chassis and suspension were strengthened. Although the car performed well in European testing, it was not able to meet the American challenge, with just one of four 375s even qualifying for the 1952 race.

The big V12 was scrapped for 1954 as Formula One required a 2.5 L engine. The new 553 F1 adopted Lampredi's four cylinder engine, leaving the V12 for sports car use.

The 375 was driven during the 2011 British Grand Prix weekend by current Ferrari driver Fernando Alonso as a tribute to the sixtieth anniversary of the Ferrari's first World Championship Grand Prix win at the 1951 British Grand Prix at Silverstone, with Argentinean driver José Froilán González driving at the time.[1]

ReferencesEdit

  • Ascerbi, Leonardo (2006). Ferrari: A Complete Guide to All Models. Motorbooks. 


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