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 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:
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- Bore was 65 mm and stroke was 75 mm
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- Roots type supercharger
- Weber carburetor 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 Script error: No such module "convert". at 6600 rpm.
Basic information
The 6CM's dimensions are Script error: No such module "convert". long, 1.48 meters wide, and 1.2 meters tall. It contains a single Script error: No such module "convert". (31.7 gallon) gasoline tank. It has a wheel base of Script error: No such module "convert". 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 Script error: No such module "convert"..
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 and the Targa Florio, with drivers Aldo Marazza, Luigi Villoresi and Ettore Bianco.[1][2][3][4]
Technical data
| Maserati 6CM (Monoposto) | |
|---|---|
| engine | 6 cylinders, in-line, front, installed longitudinally |
| Displacement | 1493 cc (91.1 cui) |
| Bore × Stroke | Script error: No such module "convert". |
| Compression ratio | 6.0:1 |
| Performance | 155-175 hp at 6200-6600 rpm |
| Valve control | two overhead camshafts / 2 valves per cylinder |
| Mixture preparation | Weber 55AS1 carburetor, Roots blower |
| cooling | Water |
| transmission | 4-speed transmission, not synchronized (rear-wheel drive) |
| Brakes | Drum brake |
| Front suspension | double wishbone |
| Rear suspension | Live axle |
| Body and frame | Aluminum body on box frame |
| Wheelbase | 2490mm |
| Track width front/rear | 1200mm / 1200mm |
| Tire size front | – |
| Rear tire size | – |
| Dimensions L × W × H | 3720mm × 1480mm × 1200mm |
| Curb weight (without driver) | 650 kg |
| Tank contents | – |
| Fuel consumption | – |
| Top speed | approx. 230 km/h |
| Specific output | 117 HP/l (86.0 kW dm−3) |
| Power to Weight | 0.27 PS·kg−1 (198.58 W·kg−1) |
Maserati 6CM Chassis 1561, built in 1938, at the Hockenheim Historic 2021
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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, 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
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External links
- maserati.org.au on the 6CM (pictures)
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