Opel straight-6 engine
Opel Straight-6 | |
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Overview | |
Manufacturer | Opel |
Also called | Vauxhall Straight-6 |
Production | 1930-1966 |
Layout | |
Configuration | Naturally aspirated Straight-6 |
Displacement | 1.8 L (1,790 cc) 2.6 L (2,605 cc) |
Cylinder bore | 65 mm (2.56 in) 85 mm (3.35 in) |
Piston stroke | 90 mm (3.54 in) 76.5 mm (3.01 in) |
Valvetrain | OHV 2 valves x cyl. |
Compression ratio | 7.8:1 |
Combustion | |
Fuel system | Carburetor |
Fuel type | Petrol |
Cooling system | Water-cooled |
Output | |
Power output | 33.5–91 PS (33.0–89.8 hp; 24.6–66.9 kW) |
Torque output | 100–186 N⋅m (74–137 lb⋅ft) |
Chronology | |
Successor | Opel CIH engine |
Opel used the straight-6 engine configuration for many years. Opel used two straight-6 engines prior to the better-known CIH engine family.
Moonlight
The Opel Moonlight roadster was the first Opel vehicle with a straight-6. It used a 1.8 L (1,790 cc) six in 1933. It was a 12-valve engine with a very-undersquare 65 mm × 90 mm (2.56 in × 3.54 in) bore and stroke, typical for the time. This engine produced 33.5 PS (33.0 hp; 24.6 kW) and 100 N⋅m (74 lb⋅ft).
Kapitän
The 1959 Opel Kapitän was the next vehicle from the company with a straight-6 engine. This was a 2.6 L (2,605 cc) unit with 12 overhead valves. Bore and stroke were now oversquare for high power output at 85 mm × 76.5 mm (3.35 in × 3.01 in). A single Opel-designed carburetor and 7.8:1 compression yielded 91 PS (90 hp; 67 kW) and 186 N⋅m (137 lb⋅ft).
See also
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