Opel Z28NEH, Z28NEL, Z28NET engines
Content
Opel Z28NEH, Z28NET, Z28NEL engines are included in the line of engines created for the Opel Vectra station wagon. These three models are the top in the motor range. They meet environmental standards Euro 3, Euro 4. This is indicated by the letter at the beginning of the engine brand "Z". These are powerful and forced engines.
Appeared in 2002. And it was tested on Opel Vectra class C car models.
Motors of this model are produced with a chain drive. In the CIS countries are not very common.
Technical specifications
| Name | Z28NEL | Z28NET | Z28NEH |
|---|---|---|---|
| Engine volume (cc) | 2792 | 2792 | 2792 |
| Max. power hp | 230 | 255 | 280 |
| Torque | 330 (34) to 1800 | 330 (34) / 4500 | 355 (36) / 1800 |
| kg/m at rpm | 330 (34) to 4500 | 350 (36) / 1800 | |
| Fuel | AI 95 | AI 95, AI 98 | AI 98 |
| Motor type | V-shaped, 6 cylinder | V-shaped, 6 cylinder | V-shaped, 6 cylinder |
| Consumption for 100 km | 11.2 | 11 | 10.4 |
| Number of valves | 4 | 4 | 4 |
| Compression ratio | 9.5 | 10 | 9.5 |
| Piston stroke (mm) | 74.8 | 74.9 | 74.8 |
| Supercharger | Turbine | Turbine | Turbine |
| Extras. information | Distribution injection system | DOHC | Distribution injection system |
Reliability, weaknesses, maintainability
These motors are quiet and economical. They start up in severe frosts from the first time. The radiator grill for it is designed in such a way that the engine receives constant cooling, as a result of which it does not overheat.
It is recommended to change the air and fuel filter every 30 kilometers. Don't skimp on oil. Due to a lack of lubricant, pistons break, scuffing occurs in the cylinders. Antifreeze must be changed every three years.
The main weak point is oil leakage from under the valve cover.
The oil cooler is most often clogged with dirt. The timing chain also often fails motorists. Its service life is usually enough for 100 kilometers. Many drivers are concerned about the cracking of the expansion tank. The rest of the engine is reliable.
It is necessary to monitor the engine of this brand: do preventive maintenance in time, replace oils, filters. Since this model is very whimsical. Repairs are expensive and take a long time. Together with the diagnosis, the duration of the overhaul takes up to 15 days, provided that there are spare parts that need to be replaced.
List of vehicles fitted with Z28 engines
Z28NEH with a capacity of 280 horsepower was installed not only on the Opel Vectra, but also on some types of Cadillacs, on SAAB cars.
The following vehicle configurations came out with installed Z28NEH (NET, NEL) engines - these are hatchbacks manufactured in 2002, 2005:
- turbocharged Opel MT Cosmo (Plus), MT Edition (Plus), MT Sport, MT GTS;
- turbocharged AT Edition, AT Sport, AT Cosmo, AT GTS;
- turbocharged MT OPC, AT OPC.
Opel sedans 2002, 2005 with units of this model:
- MT Edition, MT Cosmo;
- AT Edition, AT Cosmo.
Station wagons 2002, 2005:
- MT, MT Sport, MT Edition, MT OPC;
- AT, AT Edition, AT Cosmo, AT Sport.
Additional Information
It is recommended to use synthetic oil for 6-cylinder engines. Oil grade 5W30.
Possibility of tuning
The motor is subject to tuning. If you order a chip and a firmware program from Germany on the website www.eds-motorsport.de/, then you can increase the engine power. Along with the program comes a certificate for protection from traffic police.
A car with a tuned turbine will not produce 310 hp, but it can be accelerated to 280 in Sport mode. Picks up speed faster, does not press into the driver's seat. The roar of the turbine becomes like the sound of an airplane taking off.
Along with the power, the indicators of temperature sensors also increase.
Replacing Z28 with another type of motor
Since such engines are rare in Russia, it is difficult to find exactly the same in all respects. Can be replaced with 1,8 cc. And you also need to look at the model of the car.
For example, to replace an engine with an Opel Vectra OPC, only Z28NET from 2007 and above is suitable, and ICE models such as Z28NEL will not work. You will have to change the camshaft sensors.
It is best to buy contract engines. New or with low mileage is no longer found today. Due to the fact that the engine is boosted, its condition will depend not on its service life, but on how the owner used the car on which the unit stood.
Purchase of contract engines
Contract engines can be found on websites on the Internet. The search won't take long. The sites provide information about both the seller and the engine.
In order to close the deal, the future owner will need to call the number provided to contact the seller.
Guarantees and a test period for using the internal combustion engine equal to two weeks are provided. The cost of such an engine is about 70 rubles.
Car owners reviews
Despite the small number of cars with this engine in Russia, many owners are struck by the engine with a quick start from a traffic light, despite the automatic transmission.
Users of cars with Z28NET, NEL, NEX because it performs well both in hot and cold weather. The only negative feedback is gluttony on city roads, and also dissatisfied with the rapid wear of the valves.
