Legendary ZAZ-968M And its predecessors have long been more than cars; for many, it's a symbol of the era and an object of nostalgia, and for others, a perfect testing ground for experiments in the garage. The question of which engine to put in Zaporozhets is faced by the owner almost immediately after purchase, because the regular "aircraft" is no longer able to compete with modern traffic. The native engine MeMZ-968, which produces a modest 40-50 horsepower, often does not cope even with the urban rhythm, let alone the track or steep climbs.
Modern. swap Not only does it give you a second life in the back of a humped or aurora, but it also gives you a lot of safety and comfort. Replacing a powertrain is a complex task that requires careful donor selection, mounting redesigns, and transmission adaptations. In this article, we will look at the most popular and technically sound replacement options that will allow your car to drive rather than just roll.
Before you start dismantling an old engine, you need to understand the ultimate goal of the upgrade: do you just need a reliable everyday car or are you building a project for racing? VAZ-2108, VAZ-1111 or foreign-car Each option has its pros and cons, which we will consider in detail below.
Why the regular engine MEMZ requires replacement
Staff engines MeMZ-966 and MeMZ-968 It was created in another era, when fuel economy and the lack of complex electronics were valued above dynamics. The design with air cooling and V-shaped cylinder arrangement was progressive for the 60s, but today it is morally and physically obsolete. Constant overheating, high oil consumption and low resource make the operation of the classic Zaporozhets in the metropolis a real test for the nervous system of the driver.
One of the main problems is the shortage of spare parts for overhauling native engines. Finding quality pistons, rings or crankshaft is becoming increasingly difficult, and the cost of the restored unit often approaches the price of a contract engine from the engine. VAZIn addition, the noise of the V4 and vibrations create discomfort that is difficult to eliminate even high-quality cabin noise insulation.
⚠️ Attention: Operation of the MeMZ engine with signs of overheating (interfering knock, drop in oil pressure) can lead to jamming of pistons and destruction of the cylinder block, which will make further repairs economically inexpedient.
Many owners decide to swap It's because of the desire to have predictable acceleration dynamics, and the Zaporozhets staff accelerates to hundreds in a time comparable to a trip to the moon, whereas even a simple Oka or Classic motor reduces that time by two to three times, and it's not just a matter of comfort, but also safety when overtaking on country roads.
Option No. 1: VAZ family engines (Samara and Classics)
The most popular and logical solution for replacing is the installation of engines from the VAZ-2108 or VAZ-2109These 1.5-liter 21083 engines fit perfectly into Zaporozhets’ rear-engine design concept: They are compact, powerful enough (about 70-78 hp) and, most importantly, they are available in any auto parts store in any city in the country.
To install such an unit will require a new subframe or a serious modification of the standard, since the dimensions of the inline four-cylinder engine are different from the V-shaped “aircraft”, you will also need to solve the issue of cooling, installing a radiator in the front of the car or on the sides in the wings, and laying long highways to the rear of the body.
- 🚗 Availability: Engines and attachments can be found at any disassembly for a symbolic price.
- ⚙️ Resource: With proper care, the engines go 300+ thousand kilometers without major repairs.
- 🔧 Repairability: You can repair such an engine in the field with a minimum set of tools.
An alternative could be to install engines from the "classic" ("classic")VAZ-2101-2107However, they have a longer block and are heavier, which can disrupt the weighting of the car. In addition, in the classics, the GRM drive is carried out by a chain that requires more careful maintenance, although it is considered more reliable at high loads. The choice between the eight and the classics often boils down to the availability of free time and the skills of the welder to make the mounts.
Nuances of the VAZ-2108 installation
When installing the VAZ-2108 engine, you need to take into account that the flywheel and clutch basket may require replacement with lightweight versions to reduce inertia, which will positively affect the dynamics of acceleration of the Zaporozhets light.
Option No. 2: Oka motor (VAZ-1111)
Engine. VAZ-1111 car-off Oka. It is often called the “birth brother” of the Zaporizhzhzhia engine because of the similar layout, but with an important difference – it is inline and has water cooling. This is one of the most compact options for a swap, which allows you to keep the luggage compartment relatively free. The power of 33-35 horsepower seems small, but for a lightweight ZAZ-965M or 968M body this is quite enough for confident movement.
The main advantage of this option is the minimal alterations of the body. VAZ-11113 It can be easily placed in the engine compartment, and the cooling system can be implemented using a compact radiator installed in the front bumper niche or behind the rear seat. Many tuners use this motor in conjunction with the native Zaporozhets gearbox through the transition plate, but it is more reliable to use the native Oka box with a cable drive.
⚠️ Attention: When installing the Oka engine, it is critically important to correctly calculate the gear ratios of the main pair, otherwise the car may lose traction on the rises or, conversely, not develop speed due to short gears.
In terms of efficiency, this is almost perfect, fuel consumption is ridiculous, maintenance is not required, but it is worth considering that finding a live engine from Oka is now more difficult than from the "eight", since the production of these cars has long been discontinued, and many of them have already exhausted their life.
Option 3: Import engines and exotics
For those who do not look for easy ways and have a serious budget, the world is open. importerMost often in Zaporozhets install engines from Daewoo Tico or Daewoo Matiz, which are constructively the development of ideas laid down in the Oka, but with the best quality of execution and power up to 50-60 hp. Suzuki or SubaruBut that’s the level of professional motorsport.
Installation of Japanese or Korean polesit It's often a cross-engine scheme that uses front-wheel drive gearboxes that transmit to the rear wheels through a chain or belt transmission, or through a homemade driveshaft, which are spectacular and very buoyant, but require engineering.
When installing the engine from a foreign car, be sure to use original sensors and control unit (ECU), since universal "JANUS" or "Solida" may not work correctly with specific phases of gas distribution of the imported engine.
There are separate installation projects diesel Diesel gives excellent traction at low speeds and low fuel consumption, but its weight and dimensions can become critical for Zaporozhets' light frame. Balancing the scales becomes a key task so that the car does not turn into an uncontrolled cart.
Technical aspects of installation and adaptation
The process of replacing an engine goes beyond just removing the old one and installing the new one. subframeThe Zaporozhets metal is not designed for point loads from modern mounts, so it often requires strengthening of the sparsers and attachment places of the subframe with additional plates.
The cooling system needs special attention. liquid-cooledYou need to provide for the installation of an electric fan with a forced switch on, since natural blowing in the rear compartment may not be enough. Radiators are often placed horizontally under the trunk floor or vertically in the side niches, which requires hoses to be laid through the entire body.
And the electrician, too, is the regular wiring of the Zaporozhets is too easy for an injection engine, and you'll either have to completely remake the tourniquet for the carburetor version (which is easier) or integrate it. EBOU (electronic control unit), immobilizer and sensors from the donor. Injection motors often use the brains of January or GM with flashing for specific tasks.
☑️ Checklist before installing the engine
Comparison of specifications of popular options
To make a final decision, let’s compare the main technical parameters of the engines in question. The numbers may vary depending on the condition of the particular instance and the degree of boost, but they give a clear picture.
| Parameter | MeMZ-968 (State of) | VAZ-21083 | VAZ-1111 (Oka) | Daewuos Tico |
|---|---|---|---|---|
| Volume, l | 1.2 | 1.5 | 0.65 | 0.8 |
| Power, HP. | 40-50 | 70-78 | 33-35 | 41-51 |
| Torque, Nm. | 69 | 106 | 47 | 62 |
| Weight, kg | ~95 | ~105 | ~70 | ~75 |
| Fuel consumption (road) | 6.5 litres | 6.0 l | 4.5 litre | 5.0 l |
And you can see from the table that even the weakest version of Oka or Tico beats the stock MeMZ in terms of power and economy. VAZ-21083 It gives you a multiple of the power gain, making the car a complete vehicle for the track, and the choice depends on whether you're willing to put up with a little more weight and complexity for a big boost in dynamics.
The optimal balance between the cost of improvements and the final performance for the ZAZ-968M is the bundle of the VAZ-21083 engine and the native Zaporozhets gearbox with enhanced clutch.
Legal subtleties and registration of changes
According to the current regulations, legalization swap You need to undergo the procedure of preliminary technical examination, obtain permission from the traffic police, install equipment in a certified organization and then undergo a re-check.
In practice, many owners of retro cars ignore this point, especially if the car is used as a “weekend” or exhibit. However, when meeting with an inspector on the road or trying to sell the car, serious problems can arise, including banning the use of the engine.
⚠️ Attention: Installing an engine with an environmental grade lower than required at the time of the car’s release (or lower than the current standard) can be grounds for refusing to register changes.
If you plan to use Zaporozhets as a daily vehicle, it is better to act immediately in the legal field, this will require financial costs for examinations and certificates, but ensures peace of mind and the possibility of legal sale of the car in the future.
Cost of legalization
The procedure for legalizing the replacement of the engine in a specialized laboratory, together with state duties, can cost from 15,000 to 40,000 rubles, depending on the region and the complexity of changes.
Final selection and recommendations
Deciding, What engine to put in ZaporozhyeYou're actually choosing the character of your future car. You want to keep the spirit of retro and minimal cost? VAZ-1111 or Daewoo TicoYou need a dynamic, a sense of confidence in flow? VAZ-21083For fans of engineering and custom solutions, foreign cars will do, although their implementation will require tremendous effort.
Remember, the success of the project depends not only on the power of the engine, but also on the quality of its installation. A poorly secured engine, current cooling system or "glutty" electrician will negate all the benefits of the swap.
Zaporozhets with a new heart is a unique car that attracts attention and gives emotions that are not available to owners of standard foreign cars. It is a car with character, history and soul that you create yourself.
Is it difficult to find spare parts for the VAZ engine in Zaporozhets after installation?
No, it's one of the main advantages of this swap: the VAZ-2108 engines and their modifications have been produced in millions of copies for several decades, there are parts in any store, at any disassembly, and they are inexpensive. There will be no problems with maintenance on the road.
Can I leave the native gearbox when installing the engine from VAZ?
Theoretically, you can make a transition plate between the VAZ engine and the Zaporozhets transmission, but the native ZAZ transmission is not reliable and may not withstand the increased torque of a modern engine.
How much fuel consumption will increase after the engine is replaced?
The consumption depends on the style of driving and the volume of the new engine. When installing the VAZ-2108 (1.5 liters), the consumption can increase by 0.5-1 liters compared to MeMZ, but the dynamics will increase dramatically. Engines from Oka or Tiko, on the contrary, can be even more economical than the old “aircraft”.
Do I need to digest the body to install a radiator?
Radical cutting is rarely required, and radiators are often placed in vacant niches (such as in the wings or under the trunk floor) using flexible hoses, and the main thing is to provide airflow for cooling, sometimes with additional air intakes.