GM Family 0 engine
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The Family 0 is a family of inline piston engines that was developed by Opel Powertrain, a subsidiary of Adam Opel A.G., as a low-displacement engine for use on entry-level subcompact cars from Opel/Vauxhall.
The engine was first introduced in 1996 Opel Corsa as a 3-cylinder version. It features light cast-iron engine block, aluminum cylinder head with hollow-cast camshafts and DOHC valvetrains driven by chain. Modern versions use variable intake technology.
- 1.0 L Straight-3 (973 cc): 40 kW / 55 hp, 82 Nm @ 2800 rpm
- 1.0 L Straight-3 (973 cc): 43 kW / 58hp, 85 Nm
- 1.0 L Straight-3 (998 cc): 73.4 mm (2.89 in) bore, 78.6 mm (2.94 in) stroke, 10.5:1 compression.
- 1.2 L Straight-4 (1229 cc): 73.4 mm (2.89 in) bore, 72.6 mm (2.86 in) stroke, 10.5:1 compression.
TwinPort
New, updated version of the engine, introduced in 2003. Features TwinPort technology - twin intake ports with a choke closing one of the ports at low RPM, providing strong air swirl pattern for higher torque levels and better fuel economy.
- 1.0 L Straight-3 (998 cc): 73.4 mm (2.89 in) bore, 78.6 mm (2.94 in) stroke, 10.5:1 compression, 60 hp (40 kW) @ 5600 rpm, 65 ft.lbf (88 Nm) @ 3800 rpm.
- 1.2 L Straight-4 (1229 cc): 73.4 mm (2.89 in) bore, 72.6 mm (2.86 in) stroke, 10.5:1 compression, 80 hp (59 kW) @ 5600 rpm, 81 ft.lbf (110 Nm) @ 4000 rpm.
- 1.4 L Straight-4 (1364 cc): 73.4 mm (2.89 in) bore, 80.6 mm stroke, 10.5:1 compression, 90 hp (66 kW) @ 5600 rpm, 125 Nm @ 4000 rpm.
See also
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