| Family 0 | |
|---|---|
 Family 0 engine in anOpel Adam | |
| Overview | |
| Manufacturer | General Motors |
| Also called | Family Zero |
| Production | 1996–present |
| Layout | |
| Configuration | Straight-3,Straight-4 |
| Displacement |
|
| Cylinder bore |
|
| Piston stroke |
|
| Cylinder block material | Cast iron |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC4 valves x cyl. withVVT |
| Compression ratio | 9.5:1, 10.1:1, 10.5:1 |
| Combustion | |
| Fuel system | Sequential MPFI |
| Fuel type | Gasoline,E85 |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Output | |
| Power output | 55–150 PS (40–110 kW) |
| Torque output | 82–220 N⋅m (60–162 lb⋅ft) |
| Chronology | |
| Predecessor |
|
| Successor | Small Gasoline Engine |
TheFamily 0 is a family ofinlinepiston engines that was developed byOpel, at the time a subsidiary ofGeneral Motors. It was developed as a low-displacement engine for use on entry-level subcompact cars fromOpel/Vauxhall.
These engines feature a light-weightcast-iron semi-closed deckengine block with analuminumcylinder head. Thevalvetrain consists ofchain-drivenhollowcastdual overhead camshafts (DOHC) that actuate4-valves per cylinder via roller finger followers withhydraulic tappets. These engines also feature a 78 mm (3.1 in) bore spacing and fracture-splitconnecting rods.
Later versions also incorporate avariable length intake manifold (VLIM) andvariable valve timing (VVT).
Originally debuting as either a 1.0 L (973 cc)straight-3 or 1.2 L (1,199 cc)straight-4; a 1.4 L (1,364 cc) I4 variant was added with the introduction of the second generation, replacing the 1.4 LFamily 1 engine. TheFamily 0 engines were produced byOpel Wien inVienna/Aspern (Austria), by GM in Bupyeong (Korea) and Flint (Michigan, USA).
The engine was first introduced in the 1996Opel Corsa, either as athree-cylinder or as afour-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 (1,199 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 |
Applications:
The second generationFamily 0 began production in November 2002. It is an updated version of theFamily 0 engine and featuresTwinPort 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 betterfuel economy. Thecrankshaft 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 (60 PS) at 5600 rpm | 88 N⋅m (65 lb⋅ft) at 3800 rpm |
| Z12XEP | 1.2 L (1,229 cc) | I4 | 72.6 mm (2.9 in) | 59 kW (80 PS) at 5600 rpm | 110 N⋅m (81 lb⋅ft) at 4000 rpm | ||
| Z14XEP | 1.4 L (1,364 cc) | 80.6 mm (3.2 in) | 66 kW (90 PS) at 5600 rpm | 125 N⋅m (92 lb⋅ft) at 4000 rpm |
Applications:
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 withdouble cam phasing (DCVCP) in aGen III block.
Certain Opel and US-market Chevrolet versions of theDelta II platform compact cars use aturbocharged version of the 1.4 L engine withdouble variable cam phasing (DCVCP); in the future, an optionalgasoline direct injection system will be introduced.[1] Opel versions featureStart&Stop system from 2011 and aGen III block; a lower-power 120 ps version has been introduced as well. For model year 2013, the overboost to 220 N⋅m (162 lb⋅ft) 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 (65 PS) at 5300 rpm | 90 N⋅m (66 lb⋅ft) at 4000 rpm |
| A12XEL (LWD) | 1.2 L (1,229 cc) | I4 | 72.6 mm (2.9 in) | 51 kW (70 PS) at 5600 rpm | 115 N⋅m (85 lb⋅ft) at 4000 rpm | ||
| A12XER (LDC) | 62 kW (84 PS) at 5600 rpm | ||||||
| A14XFL (LUU) | 1.4 L (1,398 cc) | 82.6 mm (3.3 in) | 63 kW (85 PS) at 4800 rpm | 126 N⋅m (93 lb⋅ft) at 4800 rpm | |||
| A14XEL (L2Z) | 64 kW (87 PS) at 6000 rpm | 130 N⋅m (96 lb⋅ft) at 4000 rpm | |||||
| A14XER (LDD) | 74 kW (100 PS) at 6000 rpm | ||||||
| A14XFR (L2N) | |||||||
| A14NEL/B14NEL (LUH) | 1.4 L (1,364 cc) | 72.5 mm (2.85 in) | 9.5:1 | 88 kW (120 PS) at 4800–6000 rpm |
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| A14NET (LUJ) | 103 kW (140 PS) at 4900–6000 rpm |
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| U14NFT (LUJ) | |||||||
| U14NFT (LUV) | 103 kW (140 PS) at 4900 rpm | 200 N⋅m (148 lb⋅ft) at 1850 or 2500 rpm | |||||
| B14NEH (LUJ) | 110 kW (150 PS) at 4900-5500 rpm | 220 N⋅m (162 lb⋅ft) at 2750-4500 rpm |
Applications:
