Maserati 6CM
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The Maserati 6CM is an Italian single-seater racing car, made by Maserati of Modena from 1936 to 1940 for the
Voiturette A voiturette is a miniature automobile. History ''Voiturette'' was first registered by Léon Bollée in 1895 to name his new motor tricycle. The term became so popular in the early years of the motor industry that it was used by many makers t ...
racing class. Twenty-seven were built on the Maserati 4CM frame, with front suspension as on the Maserati V8RI, and had a successful racing career from 1936 to 1939. The 6CM was introduced to the world at the 1936 Milan Motor Show. Maserati spent much of its early years manufacturing cars for privateers in the racing field. The Maserati 6CM is no exception.


Engine

Specifics of the first chassis built: *
inline-6 The straight-six engine (also referred to as an inline-six engine; abbreviated I6 or L6) is a piston engine with six cylinders arranged in a straight line along the crankshaft. A straight-six engine has perfect primary and secondary engine bala ...
engine *two
overhead valve An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located b ...
s per cylinder, mounted at 90 degrees *
Roots type supercharger The Roots-type blower is a positive displacement lobe pump which operates by pumping a fluid with a pair of meshing lobes resembling a set of stretched gears. Fluid is trapped in pockets surrounding the lobes and carried from the intake si ...
*
Weber carburetor Weber Carburetors is an automotive manufacturing company founded in 1923, known for their carburetors. History Eduardo Weber began his automotive career working for Fiat, first at their Turin plant (in 1914) and later at a dealership in Bologna ...
55ASI * Scintilla ignition * Pirelli tyres The engine consists of six cylinders in-line, with two overhead valves per cylinder. Also, the car has a Scintilla ignition system as well as a single Roots-type supercharger and a Weber carburetor 55ASI. The 6CM has a four-speed gear box plus reverse and was capable of 155 bhp (brake horsepower) (116 kW) at 6200 rpm in the first model (as stated above) but its output by 1939 was increased to at 6600 rpm.


Basic information

The 6CM's dimensions are long, 1.48 meters wide, and 1.2 meters tall. It contains a single (31.7 gallon) gasoline tank. It has a wheel base of with the front and rear tracks being equal at 1.2 meters. The tyres on the model are different from front to back, with the rear tyres being narrower and taller. It weighs .


Successes in racing

The 6CM was a successful car in the racing world. It held victories in Europe, which was a powerhouse at the time for grand prix racing. With the rise of Adolf Hitler in 1933, the racing world became even more competitive. Hitler wanted to prove that the Germans were the best at everything, including motor racing. Hitler funded both Daimler- Mercedes and Auto Union. This created the drive to make a better car for the grand prix circuit and thus, the 6CM was born.


Chassis 1532

One of the twenty seven constructed was raced by Count Felice "Didi" Trossi to victory in four of the five races in which he competed. In the race he did not win he came second. The most "rewarding" race victory came at Monaco.


Chassis 1531

Despite not winning with Count Trossi, the car was highly competitive with American driver Harry Schell in big races such as at Monaco and Goodwood.


Successes at Modena

Maserati's "home track" in Modena was the home of victories for Maserati in the mid to late thirties. Modena was the site for three separate Maserati victories, one in the 4CM in 1935, and the 6CM was victorious in both 1936 and 1938.


Other chassis and racers

Most cars were sold to private owners such as Austin Dobson, Lord Howe and John Peter Wakefield. Among the private teams that ran 6CMs were Scuderia Ambrosiana and Ecurie Helvetica. Maserati's works team also raced them successfully, including in the
Grand Prix of Naples The Grand Prix of Naples was an auto racing event, held in Posillipo, outside Napoli. In its original incarnation, it began in 1934. Known as the ''Coppa Principessa di Piemonte'' in honor of Marie-José of Belgium, it continued from the same even ...
and the
Targa Florio The Targa Florio was a public road endurance automobile race held in the mountains of Sicily near the island's capital of Palermo. Founded in 1906, it was the oldest sports car racing event, part of the World Sportscar Championship between 1955 ...
, with drivers
Aldo Marazza Aldo Marazza (1912 – 11 September 1938) was an Italian voiturette racing driver, regarded as the most promising at the time. Marazza was born in Milan, where he also died. He won his first race, at the 1937 Circuito della Superba Voiturett ...
,
Luigi Villoresi Luigi Villoresi (16 May 1909 – 24 August 1997) was an Italian Grand Prix motor racing driver who continued racing on the Formula One circuit at the time of its inception. Biography Born in Milan, Lombardy, and nicknamed "Gigi", he was the older ...
and Ettore Bianco.Gauld, Graham. Modena Racing Memories. Motorbooks, 1999.


8CTF

The 8CTF was a modified 6CM, with a supercharged 3L 365 hp engine in an attempt to compete with the all-conquering Mercedes and Auto Union cars. The chassis was modified and lengthened to fit the bigger engine. During the 1938 Donington Grand Prix,
Rudolf Uhlenhaut Rudolf Uhlenhaut (15 July 1906 – 8 May 1989) was a British-German engineer, driving engineer for Mercedes-Benz, and the father of Mercedes-Benz 300 SL and 300 SLR. He had a long association with the Mercedes-Benz racing programme of the 1930s ...
, the technical director of the Mercedes racing department checked out an 8CTF entered by Luigi Villoresi for this race. He was so impressed with the car that he remarked that if the Mercedes team had prepared the 8CTF, it could have won the race against Mercedes and Auto Unions.


References


External links


maserati.org.au
on the 6CM (pictures) {{maserati 6CM Grand Prix cars