Segment: Clasic
Production years: 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956
The first of the Sunbeam's problems arose from the choice of transmission. The intention was to use a shaft drive like the BMW, but the design adopted had a worm gear in place of the German machine's bevels. While easier to manufacture, it was inherently weak, and on prototypes the worm stripped its thread if the engine was fully used. The second problem was vibration.
SUNBEAM S8 500 1949-1956
SUNBEAM S8 500 500
| engine specs | Type: | Parallel twin, SOHC | Displacement: | 487 cm3 | Bore X Stroke: | 2.8x2.5 in OR 71 mm | Compression Ratio: | 6.5:1 | Horsepower: | 25/6000 KW(hp)/RPM | Torque: | 0/- lb-ft/RPM OR 0 Nm/RPM | Fuel System: | Carburetor |
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| transmission specs | Gearbox: | 4-Speed | Clutch: | Single plate, dry | Primary Drive: | - | Final Drive: | Shaft |
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| chassis specs | Frame: | Twin cradle, steel | Front Suspension: | Telescopic, one way damped | Rear Suspension: | Plunger, spring loaded saddle | Front Brake: | Drum | Rear Brake: | Drum |
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| dimension specs | Overall Length: | - | Overall Width: | 30.3 in OR 770 mm | Seat Height: | - | Wheelbase: | 55.1 in OR 1400 mm | Ground Clearance: | 5.5 in OR 140 mm | Weight: | 412 lbs OR 187 kg | Fuel Capacity: | - |
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| tyres specs | Front: | 4JA x 16" | Rear: | 43A x 16" |
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| power system specs | Power pack: | - | Nominal Capacity: | - | Maximum Capacity: | - | Charger type: | - | Charging time (normal): | - | Charging time (quick): | - | Range: | - |
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