GM Family 0 engine

The Family 0 is a family of inline piston engines that was developed by GM-Opel Powertrain, a subsidiary of Adam Opel GmbH, 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 / 58 hp, 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 (1199 cc): 72.5 mm (2.85 in) bore, 72.6 mm (2.86 in) stroke, 10.1:1 compression, 75hp (55kW) @ 5600 rpm, 110Nm @ 4000 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

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 (44 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.

Family 0 engines are used in:
* Opel Corsa
* Opel Tigra
* Opel Astra
* Opel Meriva

Turbo

Opel version of the Delta II-based compact car will feature turbocharged version of the 1.4 L engine with of variable valve timing, and optional gasoline direct injection. [http://media.gm.com/servlet/GatewayServlet?target=http://image.emerald.gm.com/gmnews/viewpressreldetail.do?domain=827&docid=45710] [http://media.gm.com/servlet/com.gm.mol.auth.MOLogon?key=pr_eurgmen_108560&country=eur&language=en] This small tubrocharged engine will deliver the performance of much larger naturally-aspirated engines while maintaining fuel efficiency of a small engine.

The engine will be used in:
*2010 Opel Astra
*2011 Chevrolet Cruze
*2011 Chevrolet Volt (same 1.4l engine without turbocharger)

ee also

*GM Family II engine
*GM Family 1 engine
*List of GM engines