GM Family 0 engine
| Family 0 | |
|---|---|
 Family 0 engine in an Opel Adam | |
| Overview | |
| Manufacturer | General Motors |
| Also called | Family Zero |
| Production | 1996–present |
| Combustion chamber | |
| Configuration | |
| Displacement |
|
| Cylinder bore |
|
| Piston stroke |
|
| Cylinder block alloy | Cast iron |
| Cylinder head alloy | Aluminium |
| Valvetrain | Dual overhead cam |
| Compression ratio |
|
| Combustion | |
| Fuel system | |
| Fuel type | |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Chronology | |
| Predecessor |
|
| Successor | Small Gasoline Engine |
The Family 0 is a family of inline piston engines that was developed by Opel, a subsidiary of General Motors, as a low-displacement engine for use on entry-level subcompact cars from Opel/Vauxhall.
These engines feature a light-weight cast-iron semi-closed deck engine block with an aluminum cylinder head. The valvetrain consists of chain-driven hollowcast dual overhead camshafts (DOHC) that actuate 4-valves per cylinder via roller finger followers with hydraulic tappets. These engines also feature a 78 mm (3.1 in) bore spacing and fracture-split connecting rods.
Later versions also incorporate a variable length intake manifold (VLIM) and variable valve timing (VVT).
Originally debuting as either a 1.0 L straight-3 or 1.2 L straight-4; a 1.4 L I4 variant was added with the introduction of the second generation, replacing the 1.4 L Family 1 engine. Currently, the Family 0 engines are produced in Aspern (Austria), Bupyeong (Korea) and Flint (Michigan, USA).
Generation I
The engine was first introduced in 1996 Opel Corsa, either as a three-cylinder or as a four-cylinder version. This was Opel's first three-cylinder engine.
| Name | Displacement | Configuration | Bore | Stroke | Compression Ratio | Power | Torque |
|---|---|---|---|---|---|---|---|
| X10XE | 1.0 L (973 cc) | I3 | 72.5 mm (2.9 in) | 78.6 mm (3.1 in) | 10.1:1 | 40 kW (55 PS) | 82 N·m (60 lb·ft) at 2800 rpm |
| Z10XE | 43 kW (58 PS) | 85 N·m (63 lb·ft) | |||||
| X12XE | 1.2 L (1199 cc) | I4 | 72.6 mm (2.9 in) | 10.1:1 | 48 kW (65 PS) at 5600 rpm | 110 N·m (81 lb·ft) at 4000 rpm | |
| Z12XE | 55 kW (75 PS) at 5600 rpm | 110 N·m (81 lb·ft) at 4000 rpm |
Applications:
Generation II
The second generation Family 0 began production in November 2002. It is an updated version of the Family 0 engine and 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. The crankshaft and oil galleries were also redesigned to lower power loss; thereby increasing fuel economy.
| Name | Displacement | Configuration | Bore | Stroke | Compression Ratio | Power | Torque |
|---|---|---|---|---|---|---|---|
| Z10XEP | 1.0 L (998 cc) | I3 | 73.4 mm (2.9 in) | 78.6 mm (3.1 in) | 10.5:1 | 44 kW (59 hp) at 5600 rpm | 88 N·m (65 lb·ft) at 3800 rpm |
| Z12XEP | 1.2 L (1229 cc) | I4 | 72.6 mm (2.9 in) | 59 kW (79 hp) at 5600 rpm | 110 N·m (81 lb·ft) at 4000 rpm | ||
| Z14XEP | 1.4 L (1364 cc) | 80.6 mm (3.2 in) | 66 kW (89 hp) at 5600 rpm | 125 N·m (92 lb·ft) at 4000 rpm |
Applications:
- Opel Combo C
- Opel/Vauxhall Corsa/Holden Barina (XC)
- Opel/Vauxhall Tigra
- Opel/Vauxhall Astra
- Opel/Vauxhall Meriva
Generation III
The EcoFlex engine is a version of the TwinPort tuned to provide better fuel economy and lower emissions. The 1.4 L engine was introduced in 2008 and the 1.0 L engine in 2010. For model year 2012, the EcoFlex engines have been updated with double cam phasing (DCVCP) in a Gen III block.
Certain Opel and US-market Chevrolet versions of the Delta II platform compact cars use a turbocharged version of the 1.4 L engine with double variable cam phasing (DCVCP); in the future, an optional gasoline direct injection system will be introduced.[1] Opel versions feature Start&Stop system from 2011 and a Gen III block; a lower-power 120 ps version has been introduced as well. For MY 2013, the overboost to 220 Nm has been added.[2]
| Name | Displacement | Configuration | Bore | Stroke | Compression Ratio | Power | Torque |
|---|---|---|---|---|---|---|---|
| A10XEP (LDB) | 1.0 L (998 cc) | I3 | 73.4 mm (2.9 in) | 78.6 mm (3.1 in) | 10.5:1 | 48 kW (64 hp) at 5300 rpm | 90 N·m (66 lb·ft) at 4000 rpm |
| A12XEL (LWD) | 1.2 L (1229 cc) | I4 | 72.6 mm (2.9 in) | 51 kW (68 hp) at 5600 rpm | 115 N·m (85 lb·ft) at 4000 rpm | ||
| A12XER (LDC) | 62 kW (83 hp) at 5600 rpm | ||||||
| A14XFL (LUU) | 1.4 L (1398 cc) | 82.6 mm (3.3 in) | 63 kW (84 hp) at 4800 rpm | 126 N·m (93 lb·ft) at 4800 rpm | |||
| A14XEL (L2Z) | 64 kW (86 hp) at 6000 rpm | 130 N·m (96 lb·ft) at 4000 rpm | |||||
| A14XER (LDD) | 74 kW (99 hp) at 6000 rpm | ||||||
| A14XFR (L2N) | |||||||
| A14NEL (LUH) | 1.4 L (1364 cc) | 72.5 mm (2.85 in) | 9.5:1 | 88 kW (118 hp) at 4800–6000 rpm |
| ||
| A14NET (LUJ) | 103 kW (138 hp) at 4900–6000 rpm |
| |||||
| (LUV) | 103 kW (138 hp) at 4900 rpm | 200 N·m (150 lb·ft) at 1850 or 2500 rpm |
Applications:
- 2011–present Opel/Vauxhall Corsa
- 2009–present Opel/Vauxhall Astra J
- 2010–present Opel/Vauxhall Meriva B
- 2011–present Opel/Vauxhall Zafira Tourer
- 2011–present Chevrolet Cruze
- 2011–present Chevrolet Volt / Opel/Vauxhall Ampera
- 2012–present Chevrolet Aveo/Sonic
- 2013–present Opel Adam
- 2013–present Buick Encore / Opel Mokka
- 2014–present Chevrolet/Holden Trax
See also
References
- ↑ General Motors Europe (May 2008). "A Look Into the Future of Engines and Transmissions". New 1.4 Turbo.
- ↑ http://media.opel.com/media/intl/en/opel/news.detail.html/content/Pages/news/intl/en/2012/opel/06_15_new-astra-family.html
External links
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Wikimedia Commons has media related to General Motors Family 0 engines. |
