MV Agusta 350 six-cylinder
| MV Agusta | |
|---|---|
 MV Agusta 350 six-cylinder (1969) |
|
| Manufacturer | MV Agusta |
| Production period | 1968 to 1971 |
| class | Racing motorcycle |
| Motor data | |
| Four-stroke engine , air-cooled six-cylinder engine, DOHC with four valves hanging in the head operated by bucket tappets, oil sump lubrication, six Dell'Orto carburettors with a diameter of 19 mm, magneto ignition | |
| Displacement (cm³) | 348.8 |
| Power (kW / PS ) | 53 (72) at 16,000 min -1 (1969) |
| Top speed ( km / h) | 250 (1969) |
| transmission | 7-speed gearbox |
| drive | Chain |
| Brakes | front: double duplex drum brake 240 mm / rear: 230 mm drum brake |
| Wheelbase (mm) | 1,360 |
| Empty weight (kg) | 125 |
The MV Agusta 350 six-cylinder (1968 to 1971) and MV Agusta Be was a racing motorcycle of the Italian manufacturer MV Agusta , the cc in the class up to 350 cubic capacity of the FIM - Motorcycle World Championship has never been used in the race. Mike Hailwood rode this motorcycle in training in Monza (1968), Giacomo Agostini last tested it in training in Modena (1971).
Previous models (1957 to 1958)
350 cc
After Moto Guzzi used a V8 engine in the Moto Guzzi V8 in the 1956 Imola race, Conte Domenico Agusta commissioned his racing department to develop a six-cylinder engine that could achieve higher speeds and thus deliver more power than the tried-and-tested four-cylinder . In 1957, the first six-cylinder with 350 cm³ from MV Agusta was used only once in training for the Grand Prix of Nations in Monza by Nello Pagani . The double camshaft engine (between cylinders 3 and 4 there was a spur gear drive) had two valves per cylinder. The bore was 44 mm, the stroke 38.25 mm. Six Dell'Orto - carburetor supplied the cylinder mixture was ignited with a Lucas magneto ignition . After Moto Guzzi, Gilera and Mondial withdrew from racing at the end of 1957, the 350 Sei project was discontinued.
500 cc
The end of 1957 tested John Hartle and John Surtees a Be with 500 cc displacement. After a few laps in the first outing at the Monza race (1958), John Hartle's 500 failed with engine failure. After that this motorcycle was not used again, the four-cylinder from MV were more stable. The engine had a displacement of 499.2 cc, a bore of 48 mm and a stroke of 46 mm. Six 26-mm-Dell'orto gasifiers fed with mixture, the machine is a power of 75 PS at a speed of 15,000 min -1 are achieved. The only surviving model is now in the MV Agusta factory museum.
350 cc six-cylinder (1968 to 1971)
Although the FIM limited the number of cylinders for the various displacement classes in the future, MV Agusta developed a new six-cylinder, with four valves per cylinder, based on the old 350 from 1957. The model for further development was Honda's successful model, the RC166 . Mike Hailwood first used a 350 cc six-cylinder in 1968 in Monza training and immediately broke the existing lap record. Internal team disputes over the driver's position caused Hailwood not to use the machine in the race after all. It was not until 1969 that Agostini tested the 350 in Modena , the last time in 1971 the further development - the engine now received a bore of 46 mm and a stroke of 35 mm - in training. However, this motorcycle was never used in racing.
References
literature
- Mario Colombo, Roberto Patrignani: MV Agusta . Motorbuch Verlag. Stuttgart 2000, ISBN 3-613-01416-5 .
- Siegfried Rauch: Famous racing motorcycles. 2nd Edition. Motorbuch Verlag, Stuttgart 1980, ISBN 3-87943-590-1
- Christian Spahn: MV Agusta . Technology and history of racing motorcycles. 1st edition. Serag-Verlag, 1986, ISBN 3-908007-13-1
Web links
- Cylinder head of the MV Agusta six-cylinder (1968)
- MV Agusta six-cylinder 350 cm³ (1968)
- MV Agusta six-cylinder 500 cm³ (1958)
Individual evidence
- ↑ Technical data from: Colombo, Patrignani: MV Agusta . 2000, p. 249
- ↑ MV Agusta Club.de (accessed on September 30, 2011)
- ^ Spahn: MV Agusta. 1986, p. 261 ff.
- ↑ MV Agusta Club.de (accessed on September 30, 2011)
- ^ Siegfried Rauch, p. 160
- ↑ MV Agusta Werksmuseum: 350 6 cilindri Bialbero ( Memento of the original from January 3, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (accessed on October 9, 2011; PDF; 651 kB)
- ^ Spahn: MV Agusta. 1986, p. 264
