Opel Z18XER
The Z18XER is an engine designed and manufactured by GM - Powertrain Europe , which is offered by the automobile manufacturer Opel under the name Ecotec . It is the completely newly developed successor to the Z18XE with the same stroke and, like this, is a 4- cylinder in-line petrol engine with a four-valve cylinder head and 1.8 liters displacement .
Despite this additional equipment, it was possible to reduce the weight of the new engine by three percent compared to its predecessor, while at the same time achieving greater rigidity .
Technical specifications
| Engine type | General Motors 1.8L I-4 Fam1 Gen3 | |
| design type | 4-cylinder inline | |
| principle | 4-stroke petrol engine | |
| Valves per cylinder | 4, V arrangement | |
| Stroke volume | 1796 | cm 3 |
|
rated capacity
at speed |
103 (140)
6300 |
kW (PS)
1 / min |
| specific performance | 57.3 (78) | kW / l (PS / l) |
| Max. Torque
at speed |
175
3800 |
Nm
1 / min |
| specific torque | 97.4 | Nm / l |
| compression | 10.5: 1 | |
| mean effective pressure at P max | 1092.4 | kPa |
| Max. rotational speed | 6500 | 1 / min |
| Mounting position | front transverse, inclined 7 ° 50 "forward | |
| Material cylinder block | Gray cast iron (hollow frame) | |
| Material cylinder head | Cast aluminum | |
| Material crankshaft | Cast iron with spheroidal graphite | |
| Camshaft material | Chilled cast iron, hollow cast | |
| Camshafts | 2 overhead, double continuously phase adjustable (DCVCP) | |
| Adjustment angle camshaft inlet / outlet | 60/45 | ° KW |
| Camshaft drive | Timing belt | |
| Inlet valve diameter | 31.2 | mm |
| Outlet valve diameter | 27.5 | mm |
| Cylinder spacing | 86 | mm |
| Cylinder bore | 80.5 | mm |
| Cylinder stroke | 88.2 | mm |
| Stroke-bore ratio | 1.1 | |
| Intake manifold | Plastic, two-stage suction length adjustment | |
| Exhaust manifold | welded, stainless steel, 4 in 1 with directly coupled catalyst | |
| Engine control | Siemens Simtec 75.1 | |
| Fuel quality | 91/95/98 | RON |
| Exhaust aftertreatment | close-coupled 3-way catalytic converter with 2 lambda sensors | |
| Exhaust gas limit values | EU IV | |
| Lubrication system | Oil pressure; Engine oil cooler; Piston crown spray cooling | |
| Engine oil capacity | 4.5 | l |
| Cooling system | Liquid, closed circuit; electronically controlled | |
| Coolant fill quantity | 5.9 | l |
| Ignition system | Ignition coil on candle; High-energy ignition; cylinder-selective knock detection | |
| Motor mass (DIN 70020) | 118 | kg |
| Production site | Szentgotthárd , Hungary |
use
The engine was used in the models Astra H , Meriva , Signum , Vectra C , Zafira B as well as the Alfa Romeo 159 and the Fiat Croma .
literature
- Otmar F. Scharrer: Potential influence of variable valve trains on the partial load operating values of naturally aspirated gasoline engines - a study with the engine process simulation. Dissertation Technical University Berlin, Berlin 2005 PDF