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Maserati A6GCM

Maserati A6GCM wins at Monza 1953
Maserati A6GCM


The Maserati A6GCM is a single seater racing car from the Italian manufacturer Maserati. Only 12 cars were built between 1951 and 1953.


Introduction

The A6GCM belongs to the A6 family of Maserati vehicles which comprised many models from street cars to racing cars. The name of the car is derived as follows:

A6 : the name of the series : A for Alfieri (Maserati), 6 for 6 cylinders

G : Ghisa, the engine block was in cast iron

C : Corsa, for Racing

M : Monoposto, for single seater.

The Tipo6 CS (Corsa Sportivo: barchetta) has been spotted as a good contender even in front of single seaters in Formula 2, despite its small engine. Thus Maserati decided to develop a specific model that would meet the new FIA racing rules.

Design

The inline 6 cylinder two liter engine with DOHC and 12 valves, 3 double barrel Weber carburetors, delivered 160hp to 197hp. It was developed by Alberto Massimino and Vittorio Bellentani.

  • Initially with a 1987 cc capacity (long stroke, 72.6x80 mm, with a compression ratio of 13.5 :1) delivering 160hp, in 1951 and 1952
  • Then with a 1989 cc capacity (short stroke 75x75 mm, with a compression ratio of 13.5 :1, with twin ignition) delivering 180hp, in late 1952
  • And finally with a 1960 cc capacity (shorter stroke 76.2x72 mm, with a compression ratio of 12 :1, with twin ignition) delivering 197hp, in 1953.

The engine was associated to a 4 speed gearbox.

The frame was developed by Medardo Fantuzzi. The car was built in aluminum. The car weighed between 550kg and 570kg depending of the engine used. It used, at the rear a rigid rear axle with cantilevered leaf springs combined with « Houdaille » shock absorbers, in front coil springs are used also combined with « Houdaille » shock absorbers. The brakes are hydraulic driven drums. The initial wheel base was 2280mm to be extended to 2310mm in the later version. The front track was initially 1278mm and was reduced to 1200mm as the car received larger wheels in its later version. The rear track received the same treatment going from 1225mm to 1160mm. The spoked wheels were initially of 4X15 to be replaced by 5X16 in 1953.

Evolution

Maserati A6GCM "interim" or A6SSG wearing the Siam racing colors, those of Prince Bira

The 1953 version was the work of Gioacchino Colombo who modified the car significantly: now with a nearly 200hp engine, new suspension and improved brakes. The body was also reworked and made narrower and the car received an oval front grill. This version is known as the "interim" A6GCM or A6SSG.

The A6GCM foreshadowed the next model: the mythical 250F. In fact several of the later A6GCMs, produced in late 1952 and 1953, were converted to 250Fs in 1954.

Results

The same model raced in Formula One races (9 wins) and in Formula Two (10 wins) as well as in non-championship events as it was often the case in the early 1950s.

With 151 race starts and 81 race finishes, with 23 podiums and 6 Grand-Prix race wins, the A6GCM has had an exceptional track record supported by exceptional drivers.

Note: when Maserati competed in its home town, Modena, it managed to finish in the top three positions.


Podium finishes

Class Date Race Driver Position Team
F 1 9/1952 23rd Gran Premio d´Italia José Froilán González 2 Officine Alfieri Maserati
F 1 1/1953 1st Gran Premio de la Rep. Argentina José Froilán González 3 Officine Alfieri Maserati
F 1 6/1953 4th Grote Prijs van Nederland Felice Bonetto 3 Officine Alfieri Maserati
F 1 6/1953 15th Grand Prix de Belgique Onofre Marimon 3 Officine Alfieri Maserati
F 1 7/1953 11th Grand Prix de l´ACF Juan Manuel Fangio 2 Officine Alfieri Maserati
F 1 7/1953 11th Grand Prix de l´ACF José Froilán González 3 Officine Alfieri Maserati
F 1 7/1953 6 RAC British Grand Prix Juan Manuel Fangio 2 Officine Alfieri Maserati
F 1 8/1953 16th Grosser Preis von Deutschland Juan Manuel Fangio 2 Officine Alfieri Maserati
F 1 9/1953 24th Gran Premio d´Italia Juan Manuel Fangio 1 Officine Alfieri Maserati
F 2 9/1952 3rd Gran Premio di Modena José Froilán González 2 Officine Alfieri Maserati
F 2 3/1953 3rd Gran Premio di Siracusa Emmanuel de Graffenried 1 Enrico Platé
F 2 4/1953 5th Lavant Cup Goodwood Emmanuel de Graffenried 1 Privateer
F 2 5/1953 6th Gran Premio di Napoli Juan Manuel Fangio 2 Officine Alfieri Maserati
F 2 5/1953 6th Gran Premio di Napoli José Froilán González 3 Officine Alfieri Maserati
F 2 5/1953 17th Internationales ADAC Eifelrennen Emmanuel de Graffenried 1 Privateer
F 2 9/1953 4th Gran Premio di Modena Juan Manuel Fangio 1 Officine Alfieri Maserati
F 2 9/1953 4th Gran Premio di Modena Onofre Marimón 2 Officine Alfieri Maserati
F 2 9/1953 4th Gran Premio di Modena Emmanuel de Graffenried 3 Officine Alfieri Maserati
F 2 6/1954 24th Grand Prix des Frontiéres Prince Bira 1 Privateer
Non-Champ. 1/1954 11th Gran Premio Ciudad de Buenos Aires Roberto Miéres 2 Privateer
Non-Champ. 4/1954 15th Grand Prix Automobile de Pau Roberto Miéres 3 Officine Alfieri Maserati
Non-Champ. 6/1954 13th Gran Premio di Roma Harry Schell 2 Privateer
Non-Champ. 8/1954 23th Circuito di Pescara Harry Schell 3 Privateer


Maserati
1950-1969 A6 | 3500 | 5000 GT | Mistral | Quattroporte I | Sebring | Mexico | Ghibli I
1970-1979 Khamsin | Bora | Indy | Merak | Quattroporte II | Quattroporte III | Kyalami
1980-1999 Biturbo | Spyder I | Quattroporte III Royale | Shamal | 220 | 228 | 420 | 430 |Karif | Barchetta | Ghibli II | Quattroporte IV | 3200 GT
2000-present Coupé-Cabrio | Coupe | Spyder II | Gran Sport | Quattroporte V | MC12 | Gran Turismo
Racing Vehicles 26M · 8C · V8RI · 8CM · 8CLT · 8CTF · 8CL · 6CM · 4CL/4CLT · A6GCM · 150S · Tipo 63 · Tipo 65 · 250F · 200S · 250S · 300S · 350S · 450S · Tipo 61 "Birdcage" · Tipo 151 · Tipo 154 · MC12 GT1 · Trofeo
Concept Cars Boomerang · Birdcage 75th
Fiat Group brands Abarth | Alfa Romeo | Autobianchi | Ferrari | Fiat | Lancia | Innocenti | Maserati


Cars that competed in the 1952 FIA World Championship (ex. Indianapolis 500)
AFM • Alta F2 • Aston NB • BMW Eigenbau • Cisitalia D46 • Connaught Type A • Cooper T20 • ERA G-type • Ferrari 125 • Ferrari 166 • Ferrari 212 • Ferrari 500 • Frazer-Nash FN48 • Frazer-Nash 421 • Gordini T16 • HWM • Maserati 4CLT • Maserati A6GCM • OSCA 20 • Simca-Gordini T11 • Simca-Gordini T15 • Veritas Meteor • Veritas RS


<center>Cars that competed in the 1953 FIA World Championship (ex. Indianapolis 500)
AFM • BMW Eigenbau • Connaught Type A • Cooper T20 • Cooper T23 • Cooper T24 • EMW • Ferrari 166C • Ferrari 500 • Ferrari 553 • Gordini T16 • HWM • Maserati A6GCM • OSCA 20 • Simca-Gordini T15 • Veritas Meteor • Veritas RS


<center>Cars that competed in the 1954 FIA World Championship (ex. Indianapolis 500)
Connaught Type A • Cooper T23 • Cooper T24 • Ferrari 500 • Ferrari 553 • Ferrari 625 • Gordini T16 • HWM • Klenk Meteor • Lancia D50 • Maserati A6GCM • Maserati 250F • Mercedes-Benz W196 • Vanwall Special


<center>Cars that competed in the 1955 Formula One season (ex. Indianapolis 500)
Arzani-Volpini Special • Connaught Type B • Cooper T40 • Ferrari 625 • Ferrari 555 • Ferrari 500 • Ferrari D50 • Gordini T16 • Gordini T32 • HWM • Lancia D50 • Maserati A6GCM • Maserati 250F • Mercedes-Benz W196 • Vanwall


<center>Cars that competed in the 1956 FIA World Championship (ex. Indianapolis 500)
BRM P25 • Bugatti T251 • Connaught Type B • Cooper T23 • Emeryson • Ferrari 500 • Ferrari 555 • Ferrari D50 • Gordini T16 • Gordini T32 • Maserati A6GCM • Maserati 250F • Vanwall