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From Wikipedia, the free encyclopedia

Ferrari 376 S
Overview
ManufacturerFerrari
Also calledFerrari 118 LM
Production1955
4 made (one was converted from 306 S)
DesignerCarrozzeria Scaglietti
Body and chassis
Body styleSpyder
LayoutFMR layout
Powertrain
Engine3.7 L (3747.48 cc) Tipo 118 Lampredi I6
Power output280 PS
Transmission5-speed manual
Dimensions
Wheelbase
  • 2,240 mm (88.2 in) (306 S)
  • 2,400 mm (94.5 in) (376 S)
Curb weight850 kg (1,874 lb) (dry)
Chronology
PredecessorFerrari 750 Monza
SuccessorFerrari 735 LM

The Ferrari 376 S (also known as the 118 LM) was a sports racing car produced by Ferrari in 1955.[1] It was the first raced Ferrari powered by a new Aurelio Lampredi-designed inline-6 engine, created as a larger alternative to the inline-4 series of engines used in the Ferrari Monza race cars. The intention behind the development of this model was the 1955 Mille Miglia race. It was yet another attempt by Ferrari to match the new Mercedes-Benz 300 SLR in competition. All of the created cars were further converted into a bigger capacity models.[2]

306 S

The first Ferrari with an inline-six cylinder engine was the 306 S. It was a development prototype created in the late 1954. As the name suggests it sported a 3.0-litre (2,977 cc) Lampredi straight-six codenamed tipo 114. The new engine was created by adding two cylinders to the existing inline-four family of tested and tried Lampredi engines. Particularly the Ferrari 500 engine. The 306 had a short 2,240 mm (88.2 in) wheelbase and was bodied by Scaglietti. The prototype never raced and, by January the next year, was converted into the 376 S model by increasing it's capacity and stretching the wheelbase.[3]

Development

Prior to 1955, the Ferrari 750 Monza race car could produce a maximum of 260 PS (191 kW; 256 hp). This figure was not enough to match the 280–310 PS (206–228 kW; 276–306 hp) power output of the new Mercedes-Benz 300 SLR, with its engine based on the straight-8, W196 Formula One champion.[4]

After creating a 3.0-litre prototype, Ferrari decided to increase the capacity further. Now at 3.7-litre, the new car could produce 280 PS (206 kW; 276 hp). This combined with a low weight could be enough to remain competitive. It was also decided to change the wheelbase to 2,400 mm (94.5 in).[2] Chassis numbers had an "LM" suffix.

Body style was very much an evolution of the 750 Monza also bodied by Scaglietti. One of the cars was later further rebodied by the same coachbuilder and received a distinctive, more round front grille and pontoon-fenders.[3]

The cars had raced in only a handful of races in 1955 and all four examples were subsequenly upgraded to 4.4 L capacity, intended for the 1955 24 Hours of Le Mans. One car at the earliest by April 1955 for the Mille Miglia race. None of the 376 S' survive in their original form.[5][6]

Specifications

The enlarged engine was identified as the tipo 118, hence the common "118 LM" name of the car, even though this version did not participate in the Le Mans race. The internal measurements of one cylinder at 94 by 90 mm (3.7 by 3.5 in) of bore and stroke, were the same as the Ferrari 625 engine on which they were based. The total resulting capacity was 3.7 L (3,747.48 cc (228.7 cu in)). The three Weber 58DCOA/3 carburettors helped produce 280 PS (206 kW; 276 hp) at 6200 rpm. The engine used twin spark plugs per cylinder with two coils and had twin overhead camshaft design for two valves per cylinder. It also used a dry sump lubrication system.[7]

The tubular steel chassis identified as the tipo 509 was the same as on the 306 S prototype. The whole car weighed only 850 kg (1,874 lb) when unladden. The fuel tank had 150-litres capacity.

The front suspension was independent with unequal-length wishbones. Coil springs with hydraulic shock absorbers were used, along with an anti-roll bar. Suspension at the rear used de Dion axle with twin arms and transverse leaf spring helped by hydraulic shock absorbers. The cars still used drum brakes all-round.[8]

Racing

The 376 S first outing was at the 1000 km Buenos Aires, driven by Froilan Gonzalez and Maurice Trintignant. Unfortunately the team took a short cut and was disqualified for an incorrect entry into the pits.[9]

The next major race was the 1955 Giro di Sicilia, where Piero Taruffi in one car and Umberto Maglioli in the other came first and second respectively in this 1088 km race. It would remain the only European victory for a straigh-six Ferrari.[10]

At the 1955 Mille Miglia the new Ferraris met their German opposition. Three Ferrari 376 S' were entered, but only one finished the race. Maglioli with Luciano Monteferraio came third overall, behind the two SLRs, competing in the same class.[11] Taruffi actually led the race for one time, before retiring with a broken oil pump.[12] The remaining 376 S, driven by Paolo Marzotto, had an accident due to worn tire.[13] Eugenio Castellotti received the new 4.4 L-engined 735 LM but did not finish the race due to engine problems.[14][15]

The last achievement of the 376 S was with Giuseppe Farina scoring sixth place in the Eifelrennen Nürburgring race in May 1955.[16]

References

  1. ^ "1955 Ferrari 121 LM". conceptcarz.com. Retrieved 2019-09-28.
  2. ^ a b Acerbi, Leonardo (2012). Ferrari: All The Cars. Haynes Publishing. pp. 90–91.
  3. ^ a b "121 LM s/n 0484LM". barchetta.cc. Retrieved 18 September 2019.
  4. ^ "Ferrari 118 LM - Register". Retrieved 18 September 2019.
  5. ^ "121 LM s/n 0558LM". barchetta.cc. Retrieved 18 September 2019.
  6. ^ "All Results of Ferrari 118 LM". racingsportscars.com. Retrieved 18 September 2019.
  7. ^ "Ferrari 376 S". auto.ferrari.com. Retrieved 18 September 2019.
  8. ^ "FERRARI 118 LM (376 S)" (in Czech). Retrieved 18 September 2019.
  9. ^ "1000 km Buenos Aires - Race Results". racingsportscars.com. Retrieved 18 September 2019.
  10. ^ "Giro di Sicilia 1955 - Race Results". racingsportscars.com. Retrieved 18 September 2019.
  11. ^ "Mille Miglia 1955 - Race Results". racingsportscars.com. Retrieved 18 September 2019.
  12. ^ Eaton, Godfrey (1983). Ferrari: The Road And Racing Cars. Haynes Publishing. p. 172.
  13. ^ "121 LM s/n 0546LM". barchetta.cc. Retrieved 18 September 2019.
  14. ^ "1955 - Mille Miglia". barchetta.cc. Retrieved 18 September 2019.
  15. ^ "121 LM s/n 0532LM". barchetta.cc. Retrieved 18 September 2019.
  16. ^ "Eifelrennen Nürburgring - Race Results". racingsportscars.com. Retrieved 18 September 2019.
This page was last edited on 7 October 2019, at 12:03
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