To improve the performance of your car, you can install a Niva engine from a foreign car without modifications. The VAZ-2121 has long been considered one of the best domestic cars both in terms of engine power and driving performance. But now this car model has become outdated, and many motorists are trying to somehow improve it. What engine should be installed as an analogue to the 1.7 liter petrol injection engine?
Replacement problem
The fact is that to replace the engine on a VAZ-2121, you can choose almost a dozen different engines, but they are all from foreign cars. But the main problem is that you will have to do some additional work during installation, for example, install or change fasteners, add new parts. Because of this, it is not so easy to find a budget replacement option. The choice is significantly narrowed down to just a few options. For an engine to be suitable for installation, it must meet several conditions:
Which engine should you consider first?
Technical characteristics of the Peugeot XUD9SD 1.9 TD engine
| Exact volume | 1905 cm³ |
| Supply system | prechamber |
| Engine power | 63 - 75 hp |
| Torque | 130 - 140 Nm |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder diameter | 83 mm |
| Piston stroke | 88 mm |
| Compression ratio | 21.5 — 22.0 |
Improved Niva
The injector installed on the Niva, although it reduces fuel consumption, is still not the most economical option in urban conditions with traffic jams and other delays. On the highway and during long trips outside the city, this is not felt so much, since the car works without stops and downtime. Due to the unprofitability of cars in urban environments, drivers are thinking about a good and effective replacement for the old injection-type engine in their car. The best option would be a diesel engine for the Niva. It has approximately the same power characteristics, but its fuel consumption is comparatively lower. Also, diesel is less capricious in terms of fuel quality. What options from this category of motors are worth detailed consideration?
The first and most worthy candidate is the XUD 9 SD from Peugeot. This engine was used to create a modified version of the Niva - model 212151 with a French engine. It can be installed on the Niva without any problems - the fastenings of the parts and the assembly are identical, the motor fits perfectly in size, and in addition, there are some advantages from its installation.
In fact, this is the only option that suits all parameters.
What is the best engine to install in NIVU to replace the original one?
Every motorist dreams that the engine in his car would be more reliable and stronger. Owners of NIVA
They know firsthand that sometimes just a little bit of power is not enough to pass some obstacle.
In the standard NIVA,
the engine is rather weak and everyone knows this; in one of the posts I talked about how to inexpensively increase the power on a NIVA by 40%.
Someone like this tuning
It seems unreliable and tedious.
Therefore, Niva
go a different route and install engines from other cars.
Modified options
Since it is not always possible to supply an engine of a certain foreign car, it is worth considering imported production options that require a little modification:
- The first candidate will again be the French engine from Peugeot XUD 11 series. Since the power of this unit is higher than that of the previous model, some changes will need to be made to the design of the Niva - replacing the gearbox. An acceptable option is a gearbox from Fiat Polonez. In addition, a good solution would be to replace the front supports of the power plant fasteners, pan and exhaust system. It is also worth replacing the drive elements with similar parts from the Chevrolet Niva.
Advantages of diesel
For off-road use, a diesel engine is preferable. The advantages of a diesel engine over a gasoline engine in an SUV are obvious:
- greater torque achieved at low speeds;
- The fuel consumption of a diesel engine will be lower under similar operating conditions, due to the engine operating in optimal mode;
- The service life of a modern diesel engine before overhaul is higher;
- atmospheric diesel engines without electronic injectors can run on cheap, low-quality diesel fuel;
- The installation of a diesel engine allows the use of large wheels and other main pairs.
At the same time, any diesel engine has its drawbacks: the engine is demanding of high-quality fuel, and the cost of repair and maintenance of fuel equipment will be noticeably higher than that of gasoline. A more powerful engine requires modifications to the gearbox, transfer case, and axle gearboxes. Starting a heavy fuel engine in winter has its own characteristics and often requires special heaters.
History of diesel engines on Niva
The desire to improve fuel efficiency and add strength to the model was undertaken more than once by the manufacturer itself.
Thus, in 2014, the engine from Fiat cars under the general name MultiJet was actively tested on the VAZ-2121. This power unit received the title “Engine of the Year” back in 2005, and it was actively installed on the Fiat Doblo. It is difficult to call the technical characteristics of the motor outstanding from the perspective of today:
- Working volume – 1.3 l.
- Torque – 180 Nm.
- Installed power – 85 hp.
When testing the engine, it turned out that modernization of transmission elements is required, since a unit with a torque of up to 165 Nm can be installed on the Niva. Given the crisis in the country at that time, a good idea was postponed for an unknown period of time.
Another indirect example of attempts to introduce a diesel heart was the release of a trial batch of Chevrolet Niva to the market. The Togliatti company began installing diesel engines. They even managed to get permission to keep the trademark.
The Chevrolet Niva model received a set of two diesel engines - a naturally-aspirated diesel engine and an engine with a turbo prefix. The machine had the following technical characteristics:
- Working volume – 1.9 l.
- Torque – 195 Nm.
- The installed power of the naturally aspirated engine and turbo is 100/120 hp. With. respectively.
- Fuel consumption is about 7.5 l/100 km in mixed driving mode.
With such equipment, the Chevrolet Niva lost in dynamics, and the workmanship did not satisfy customers. Perhaps for this reason, such a machine was not widely used.
Niva 3S automatic transmission, automatic (part 1)
Niva
21213. Installed ICE-3SFE (2l), automatic transmission (automatic transmission), steering rack, power steering, etc.
As was said, many engines from other cars can be installed on the VAZ-2121, but the most preferable are
: XUD9TE, D8A. 1.9 l, 90 hp, fits perfectly into the Niva, has 190 Nm at 2200 rpm, spins up to 4400 rpm, weighs a little more than 120 kilograms, will need heating of diesel fuel for the winter.
The second contender is an import diesel turbocharged FIAT-CMD with a volume of 1.93 liters. and 90 hp, the cost of a new engine ranges from 280,000 to 297,000 rubles, but this is not profitable and it is better to buy a used one.
Read
Another option can be used with BMW 1.6-1.8 liters; diesel is even much better.
Possible from a Mercedes 1.8 liter
. Many people have an engine
from Fiat Ducato 2.3 liters, however, this option is not the most budget-friendly and not the most powerful; the previous options are better suited for the Niva.
To finally tune the Niva, you can install a turbine, turbocharged Nivas, an incredible picture. However, the installed turbine can have a bad effect on the transfer case and it simply won’t hold up.
KEY-DOP
Installing a turbine on a Niva costs 35,000-50,000 rubles. It should also be remembered that the standard engine
Niva copes with the turbine, but its power is not enough; you can try to play it, but most often without success.
Basically, the work of the turbine is that, due to the exhaust gases, more friction is acquired, it brings a sensitive gain in horsepower and torque
Regarding driver safety
sitting in a VAZ 2121 car with replaced engines, we can say that there is a threat to him. In general, the Niva is a reliable car created according to Soviet GOST. However, by replacing the engine with a more powerful one, as stated, more than 120 hp, the car may simply fall apart on the road.
Diesel for Niva: solving problems of self-installation
Practical advice for installing a diesel engine
When deciding to install it yourself, you should pay attention to the following experience.
Among the possible units that the designers of both the classic car and the Chevrolet Niva considered was the Peugeot engine with the index XUD-9SD. Not the most powerful unit (from 69 to 75 hp) is highly reliable. When planning such tuning, you need to be prepared to make some modifications:
- Replace the gearbox. Among the options, a box from Fiat Polnes was offered, as it would work with such an engine. But it won’t be easy to find a unit from a car that is now rare.
- Clutch mechanism. When searching for a box, they immediately select a clutch mechanism, which must ensure transmission of rotation and match in size.
- Engine support points. When installing on the Niva, the front engine mounts required modifications.
- Pallet shape. Taking into account the dense layout of the Niva’s engine compartment, the pallet requires an original shape, and was often made individually.
- Exhaust system. Minimal modifications to the exhaust piping are required.
In some cases, to increase the safety margin, it is noted that it is necessary to install front-wheel drive parts from the Chevrolet Niva model. But with gentle operation, such modification is not necessary.
The serial Niva with this engine was produced until 2009 and was mainly exported. With a certain amount of luck, the car can still be found in advertisements for sale. A special feature of the car is its low dynamics. The car reaches the first hundred in only 25 seconds.
What diesel engines did the manufacturer install?
AvtoVAZ has long understood the need to install a diesel unit in the Niva. A series of attempts were made to install a diesel engine in the VAZ 2121 to modernize the SUV. Through experiments, we managed to install a motor from a Peugeot XUD-9SD. This version of the car was produced from 1999 to 2007 with the index 21215, and was sold outside the country (for export).
Recently, the plant released a new model of the diesel Niva, equipped with a new generation Fiat 1.3 16v MultiJet engine. To install it, the engine department had to be modified. It is not yet known how the sea trials will end and whether there will be serial production. It is also not known how much the cost of the car will increase.
Serial Niva with diesel engine
From the very beginning, engineers at the plant tried to implement the idea of installing a diesel engine on the Niva 2121 model. For the Niva it was planned to use a domestic version of the 1.5-liter turbodiesel engine. With such a unit, prototypes were unable to effectively cope with off-road driving due to insufficient power. The next step was the installation of a similar diesel engine on the 3- and 5-door versions of the Niva, but with an increased displacement to 1.9 liters. These attempts were not successful; the diesel Niva with the indicated internal combustion engines did not make it into the series.
Engine design: diesel, in-line, 4-cylinder, longitudinally mounted. Working volume: 1905 cm3 . One of the modifications of this diesel engine, when installed on the Niva, provided the vehicle with the following dynamic performance and performance characteristics:
| Maximum power: | 48 kW (69 hp) at 4600 rpm |
| Torque: | 121 Nm/2200 rpm |
| Maximum speed: | 120 km/h |
| Acceleration 0-100 km/h: | 25 sec |
| Average fuel consumption per 100 km: | 8.0-8.7 l |
The Niva with such a diesel engine turned out to be economical and performed well off-road, since the Peugeot xud9sd diesel engine provided the all-wheel drive vehicle with decent low-end torque. An additional advantage of the imported diesel engine on Niva was its reliability and relative ease of repair and maintenance.
As for the dynamics, the Niva 2121 with the Peugeot xud9sd engine accelerated to “hundreds” very slowly. The emphasis was placed on the main purpose of the car - increased cross-country ability on all-out off-road conditions. The Niva model with a Peugeot diesel engine was included in the series, but the car was produced in limited quantities and was also exclusively exported. In 2009, serial factory production of the diesel Niva completely ceased.
Other engines
Some owners install Japanese-made diesel engines on their Niva. The most common are the 3C and 3ST engines from Toyota. Both of these power plants have the same displacement, but differ in power. The 3C engine has a power of 79 “horses”, the 3ST has 100 hp. With.
Just like the design for which the XUD-9SD is intended, the car undergoes some modifications to ensure the functionality of the motor. At the same time, using the designated Japanese power plants, it is rare that parts of the box are changed. Then the gearbox remains standard, but no guarantees are given regarding the durability of its operation.
The car is not afraid of off-road conditions
Along with a Japanese-made power unit, some owners also replace the gearbox. In most cases, a 5-speed gearbox from a Toyota Noah minibus is used.
Some craftsmen install diesel power plants on the Niva from:
The main factor in the installation process is the overall dimensions of the unit. It should at least approximately correspond to the dimensions of the standard engine.
Next, structural changes are made that will allow you to secure the unit in your apartment. Some power devices have significant weight. Therefore, after installation on the car, the suspension is strengthened. It is worth considering that certain changes in the body structure made to change the engine reduce its strength. Often, after the work has been done, the body needs to be strengthened.
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Diesel for Niva
: solving self-installation problems
Passenger cars and SUVs with diesel engines are very popular abroad. For us, the idea of equipping a car with such an engine has not caught on for many years. Only not so long ago UAZ all-terrain vehicles with such an engine began to arrive on the market.
However, there were attempts to make a jeep with a diesel engine. One example of such a car was the diesel Niva. This VAZ Niva 2121 model was exported and had an index of 21215.
Equipping a car with a diesel unit has a number of positive qualities. These engines are significantly more economical than gasoline-powered units and are less demanding on fuel quality. They have excellent traction characteristics at low engine speeds. The service life of a diesel engine is not easy, which allows it to be used longer without undergoing extensive repairs.
The main drawback of these engines is the complexity and high cost of repairing the fuel system, which allows for accounting (software), since a number of units use precision-machined parts.
Installing a diesel engine on a Niva
One of the available options is the independent installation of a diesel engine on the Niva. To do this, you can use the services of large tuning studios or private professionals who modify cars. You can also install a diesel engine on a Niva yourself if you have some experience and specialized tools. You need to be prepared for the fact that in order to legally operate the car after replacing the engine, you will definitely need to register the changes made with the relevant government agencies.
In the process of selecting a diesel unit, many people wonder which diesel engine to put on the Niva. There are a sufficient number of diesel engines that can be installed on this car. Diesel engines of Japanese and European brands are most often installed on Niva with their own hands. The main requirement is the suitable physical dimensions of the power unit for placement in the engine compartment of the Niva.
The need to make changes to the design begins with the mounting features of the diesel engine. The second nuance is the increase in load on the front axle after installing a diesel internal combustion engine on the Niva, since an engine of this type is often heavier. For this reason, it is necessary to further strengthen both the suspension and the body after placing the engine. Almost always, the standard gearbox will also need to be replaced.
The list of general changes to the design of the Niva for a diesel engine includes: replacement of front engine mounts, modified sump, changes to the exhaust system. The engine cooling system is also subject to modernization. The cooling radiator is often changed (a radiator from a GAZ Gazelle car is suitable).
Changes are also being made to the chassis, individual elements are replaced with reinforced ones. For a regular Niva, they can be borrowed from Niva-Chevrolet. As for the operation of diesel engines, it is separately recommended to install a diesel fuel heating system.
You can also install a Peugeot diesel engine with the xud 11 index on the Niva, but in this case the gearbox will need to be changed. The VAZ gearbox with this engine will not last long. The solution is a gearbox from the Fiat Polonez model. Additionally, you will need to install another clutch. No less often, diesel engines from Japanese cars are installed on the Niva. Units with the Toyota 3c/ct index with a power of 80 and 100 hp are suitable. To replace the gearbox, you can use a 5-speed gearbox from the Noah model manufactured by Toyota.
The best option would be a diesel engine and gearbox, which were originally designed to work in tandem. In this case, the task is simplified due to the correspondence of all attachment points, as well as the coincidence of the axes of the internal combustion engine and transmission shafts. This approach eliminates difficulties in the process of combining a diesel engine and gearbox, and also significantly increases the service life of the associated components. There is no need to calculate what torque a particular gearbox with different diesel engines can withstand.
Advantages of installing a diesel power unit instead of gasoline or LPG. Choosing a suitable diesel engine for GAZelle and UAZ (UAZ) to replace a gasoline engine.
Comparison of gasoline and diesel engines. Advantages and disadvantages of diesel, reliability of diesel engine, features of its maintenance and operation.
Why does a diesel engine have a higher efficiency compared to gasoline engines? Torque and speed, diesel fuel energy.
Why oil leaks from the engine breather: signs and main causes of such a malfunction. How to understand why oil is flowing through the breather, troubleshooting.
Causes of noises and knocks when operating a gasoline engine in different modes. Detonation, knocking of hydraulic compensators, ignition faults and other reasons.
Diesel engine power increase module. Types of chip boxes, features of connection and operation of these blocks. Advantages and disadvantages of a tuning box.
Other engines
Some owners install Japanese-made diesel engines on their Niva. The most common are 3C and 3ST engines from Toyota. Both of these power plants have a displacement, but differ in power. The 3C engine has a power of 79 “horses”, the 3ST has 100 hp. With.
As with the XUD-9SD, the car goes through some modifications to ensure the engine's performance. At the same time, using the specified Japanese power plants, transmission elements are not always replaced. In this case, the gearbox remains standard, but no guarantees are given regarding the durability of its operation.
The car is not afraid of off-road conditions
Along with the Japanese-made power unit, some owners also replace the gearbox. The most commonly used gearbox is a 5-speed gearbox from a Toyota Noah minibus.
Some craftsmen install diesel power plants on the Niva from:
- Mercedes Benz,
- Volkswagen,
- Nissan.
The main criterion for installation is the overall dimensions of the power unit. It should at least approximately correspond to the dimensions of the standard engine.
Next, design changes are made that will allow the unit to be secured in place. Some power devices are heavy. Therefore, after installation on the car, the suspension is strengthened. It is worth considering that some changes in the body structure made to replace the engine reduce its strength. Often, after the work has been done, the body needs to be strengthened.
Additionally, the transmission will have to be replaced and modified. It’s good if the power unit and gearbox are used from the same car. Then there will be no need to adjust the mounting points and maintain the alignment of the motor and gearbox shafts. Otherwise, even a small deviation in alignment will lead to frequent malfunctions, especially in the transmission.
Disadvantages, breakdowns and problems of the Peugeot XUD 9SD
The main problem of the engine is the low location of the expansion tank
As a result, a lack of coolant leads to a breakdown of the cylinder head gasket.
If you do not follow the instructions for replacing the fuel filter, the injection pump will fail.
The fuel filter glass often breaks when replacing it, but it is not cheap
Approximately once every 100,000 km, the thermal valve clearances have to be adjusted here
Using cheap oil quickly affects the condition of the engine turbine
The network describes cases of prechambers falling out of the cylinders at very high mileage
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