How to increase the power of a car without rebuilding a NIVA 4x4 engine

Installation of turbocharging on a Chevrolet Niva

Turbine for Chevrolet Niva The second method of tuning the power plant of a Chevrolet Niva is to install a turbocharger.
Moreover, this method allows you to significantly increase power and also increases torque. Turbocharging provides significantly better filling of the engine cylinders with air due to forced injection.

With this tuning option, you should carefully select a turbine, otherwise the positive effect of its use may be significantly lower than expected.

Tuning in this way allows you to achieve an increase in engine power by 30%. At the same time, turbocharging only has a positive effect on fuel consumption, since it is reduced. And the increase in power is achieved due to better fuel combustion and ventilation of the engine cylinders.

Replacing the standard crankshaft with a modernized one

Another common tuning method is installing a lightweight crankshaft instead of a standard one. This kind of modification requires partial disassembly of the internal combustion engine design.

The features of this type of tuning include the following points:

• By reducing the shaft mass, the design efficiency is significantly increased. This is because the motor requires less energy to rotate it. Lightweight versions of the crankshaft still have high strength and reliability, which are achieved by using special alloys at the time of their manufacture.
• The power of the power plant is also increased by increasing the stroke of the rods. This is due to the fact that due to this, the volume of the combustion chamber increases slightly, and the force released during fuel combustion is greater.
• Many experts recommend replacing the piston rings at the same time.

Such modifications allow:

1. Increase power.
2. Increase smoothness.

However, it is worth considering that as the rod stroke increases, the fuel consumption rate also increases. In addition, an increase in the amount of released energy causes increased wear of the structure.

Methods for tuning a VAZ engine and

It is believed that the main goal of engine tuning is to increase the power of the car. But this is only one of the benefits that the owner of a Niva receives. In addition to an increase in torque, increased dynamics and maximum speed, driving characteristics and controllability are improved, engine efficiency increases, and fuel consumption decreases. A positive point is the increase in engine life.

Tuning the VAZ 21214 (21213) engine can be divided into two directions:

• Mechanical modification of the engine (correction of the geometry of the power unit);
• Chip tuning (software upgrade of the ECU) is possible only on injection modifications of the SUV.

In the first case, to improve technical characteristics, direct intervention in the vehicle systems is necessary.

Chip tuning is carried out by flashing the settings of the electronic control unit. The process takes from 30 minutes to 1 hour, but requires knowledge of the software and the features of working with it.

Doing the work yourself

The low wear resistance and efficiency of an SUV engine of Russian origin determines that it is practically impossible to do without mechanical modifications. Many people call such work a change in geometry.

The internal combustion engine installed on the vehicle in question can have many systems modified. Experts recommend starting with upgrading the carburetor. This is due to the fact that due to the use of imperfect production technology, its efficiency is very low. Modernization is carried out as follows:

1. To begin with, it is recommended to replace the nozzle. The factory version is installed with 1 cam, but should be installed with 2 cam.
2. The pump accelerator should be updated.
3. All sharp corners that could cause turbulence in the air flow are removed.
4. Some craftsmen also clean accessible surfaces, reducing their roughness. Due to this, the efficiency indicator is significantly reduced.

Insert: Important: It is important to clean the carburetor structure from carbon deposits and dirt. To do this, use gasoline or a rag. If the dirt has become too deeply embedded in the surface, you can use special cleaning products.

Experts do not recommend chipping a naturally aspirated engine. You can further increase engine power if you try to increase the piston stroke. This can be achieved by installing another crankshaft with a stroke of 84 mm, suitable for the VAZ 2130

. The piston has a diameter of 82 mm, but the piston pin must be offset by 2 mm. After this, the working volume will become 1.8 liters.

In the future, if you bore the block to 84 mm. with the same crankshaft, the volume will become 1.9 liters. But that’s not all, in the future you can increase the filling capacity of the working cylinders. This is achieved by boring and installing valves with an increased diameter of their plates. This operation is quite complex and requires special equipment. It is also advisable to use lightweight connecting rods and then you can have about 100 horses at the output.

Lubricant supplied through the oil pump extends engine life. To improve the performance of the oil pump when tuning the Niva engine, you need to take another pump and cut off part of the housing with the parting plane from it. The thickness of this “pancake” should be about 11 cm. Using milling, cut off the excess and leave a thickness of 10 mm.

Next, do the following to remove chamfers on the edges of the teeth:

1. We compress, that is, remove, the drive gears.
2. We trim one of the gears by 0.75 mm on each side.
3. We cut the second gear to 11.5 mm (after trimming).
4. We repeat the operation with the remaining gears (driven).

This car is distinguished by its simplicity of design, easy accessibility to all components and mechanisms, as well as its increased reliability.

Installing additional accessories

There are quite a large number of different additional accessories that can increase the vehicle's cross-country ability and improve traffic safety. Let's take an example:

1. Winch. Serious off-roading requires a winch. When installing it, you should pay attention to good fastening. This is due to the fact that a large load will be placed on the connecting element. To install a winch, you will need a special bumper that can withstand the load.
2. Additional lighting. When driving at night, standard head optics are not enough. Additional lighting can be installed on the roof or on an additional body kit. If you wish, you can make such structures yourself. Conventional headlights are installed as a light source and connected to a power source.
3. Protective body kit. To protect the body and strengthen it, an additional protective body kit is often installed. You can make it yourself or purchase special kits. Protection is installed both front and rear. In addition, many owners of the car in question install nets on windows and other similar elements. It is worth considering that a car with such modifications is very unstable on the highway and, in some cases, traffic police officers may fine the owner.

Third step: flashing the ECU

The most inexpensive way to increase the power of an off-road SUV, because chip tuning is a software modification and does not involve technical intervention. Replacing and adjusting ECU software is the essence of flashing. In this way, it is possible to change the operation of the electronic control unit, adjust the fuel supply and reduce its consumption, due to the engine’s performance in terms of power and dynamics. You can increase engine power by about 15% just by chipping.

Carburetor modernization is a common Niva tuning option

The carburetors installed by VAZ are, to put it mildly, low in efficiency. That is why many people start tuning by changing this element. The features of the work carried out include the following points:

• The pump accelerator nozzle is being updated. It often causes air turbulence, which reduces the efficiency of mixture enrichment.
• In almost all cases, a jet with an indicator of 1 cam is replaced with 2 cam. This also allows you to significantly increase the efficiency of the carburetor.
• It is recommended to clean all unevenness and roughness, as this leads to increased air resistance during operation. For this, files and sandpaper are used.
• The structure should also be cleaned of various soot or other combustion products. This may require a special cleaning agent. Some craftsmen use special baths to remove dirt.

In the case where an injector is installed, it is almost impossible to carry out modifications yourself. Only a professional who knows the features of such a design will be able to change the basic indicators to increase power or reduce consumption. Self-tuning in this case can lead to serious malfunctions.

Experts' opinion

Gena. The engine can be called the real heart of the car. Many people recommend starting tuning with it, since only by improving the engine can you make the car run over bumps and fords. I will say right away that the task is not an easy one. Improving an engine can take a lot of time and effort. Therefore, you should be prepared for difficulties. Comrades Belarusians, if you need a Belarusian diploma, then you will need to purchase a diploma, this means buy a diploma and thanks to the Belarusian diploma, you can always find a job in the CIS, buy Belarusian diplomas, comrades!

Stanislav. The Niva is a good car, even one of the best produced by the domestic auto industry. However, it has many disadvantages, among which we note the low engine power and its unstable operation. That is why, almost immediately after purchasing this car, I immediately upgraded the engine.

Vitaly. I decided to modify the standard Niva engine. There was a lot of work, so I decided to entrust it to professionals. Although I myself have some experience in engine repair, I did not undertake its complete modernization. As a result of the work done, the guys increased the power by 60 hp. Of course, not an impressive result, but still the traction has increased significantly.

External tuning

How to find out the power of a car engine by engine number

This is the most popular type of tuning, regardless of whether you have a Chevrolet Niva or some kind of Pajero Sport.

By changing the appearance, you can easily and sometimes relatively inexpensively distinguish your standard Niva from the gray, monotonous stream of cars.

• Body kits and sills. Partially decorative and practical modification. Increases dimensions, gives solidity, simplifies getting into and out of the car when installing the same lift kit;
• Radiator grille. Simple, beautiful and original. There are many ready-made radiator grille options available for the Niva from Chevrolet, although if you wish, you can make it yourself from available tools and materials;
• Optics. Installing new optics, front and rear lights helps improve the quality of visibility at night. It will also be useful to mount DRLs and fog lights if they are not available as standard;

• Anti-gravel coating. It does not greatly affect the appearance, but protects the body from damage caused by gravel and all those delights that lie on the roads or fly off from cars in front;
• Painting. The body can be painted partially or completely, using the popular airbrush method;
• Wheel disks. An integral component of any tuning. This is where you should start. If you don’t have the money to buy a new set, and the old one doesn’t look very good, use the powder painting method;

Lada 4×4 Urban: Don’t call it “Niva”!

Integrated bumpers and a minimum of chrome parts refresh the Urban.Integrated bumpers and a minimum of chrome parts refresh the Urban. Lada 4×4 Urban. Made in Russia. On sale since autumn 2014. From 449,000 rubles. They say that big things can be seen from a distance. In a year and a half, Niva... oh, sorry, Lada 4x4 will be forty years old! And now one cannot help but admit that this is the most successful VAZ and one of the best domestic cars. The ancestor of all crossovers in the world. Our first non-military all-terrain vehicle. It has gone through a lot of modifications and improvements and is still in demand today.

The current reason for the meeting is the new Urban modification. All-wheel drive with an urban accent? Why not?

IMPROVEMENTS AND DECORATIONS

We are vaguely familiar with Urban (ZR, 2014, No. 7), and now let’s take a closer look at him. The most noticeable innovation in the exterior is new plastic bumpers.

They look more organic and modern than the old, metal ones. With them, the Lada 4x4 became even shorter - 3640 mm, although from birth it had quite an urban size. For comparison: the length of the Suzuki Jimny is 3695 mm.

True, the Japanese little one is longer thanks to the spare tire on the rear door.

Developed lateral support? No, the seat profile has not changed, but the illusion of increased volume is created by the new upholstery. Improved lateral support? No, the profile of the seats has not changed, and the illusion of increased volume is created by the new upholstery. The remaining differences from just a Lada 4x4 are purely symbolic. For example, Urban is equipped with a removable towing device: under the plugs on the bumpers there is a thread into which an eye is screwed. The old-style towing eyes are also alive - still there, on the bottom. Unlike other modifications, only light alloy wheels are installed on the “city dweller”. In addition, the Urban features a grille and tailgate ornamentation. The first thing you notice in the cabin is the steering wheel with a reduced diameter: only 380 mm versus the standard 420 mm. On a car with hydraulic booster, this innovation has long been expected. With a small steering wheel, it is easier for the driver to adjust his workplace to suit himself. Electric windows, air conditioning, heated seats, power adjustment and heated exterior mirrors are included in the Urban's basic equipment.

New floor tunnel lining - with two cup holders and a round ashtray. The cigarette lighter and the toggle switch for turning on the air conditioner are also located here. In addition, between the seats there are buttons for power windows and a joystick for adjusting the mirrors. Buttons, keys and toggle switches are scattered chaotically, but there was no better place for them.

Lada 4x4 with air conditioning is a dream! For the coolness in summer traffic jams, you can easily forgive the usual noise of the heater fan.

A reduced-diameter steering wheel is installed only on the Urban. A reduced-diameter steering wheel is installed only on the Urban. The seats delight the eye with new upholstery with yellow-beige stitching. On the ceiling there is a new interior lighting lamp, borrowed from Priora.

ABOUT WALKABILITY

I remember I didn’t like driving around the city in the old Niva-21213 - the steering wheel was a bit heavy and the pedals required a fair amount of effort. Now it's a completely different matter! Weightless controls do not tire you out, and turning the small steering wheel is a pleasure. And visibility is absolutely excellent - much better than many modern cars. And parking is convenient. Not an all-terrain vehicle, but a city weasel.

An engine with distributed injection is livelier than a carburetor (do you remember that one?). It pulls smoothly, without jerking, but you still want more. Fuel efficiency also leaves much to be desired. However, the Lada 4x4 is so much cheaper than its competitors that it is awkward to criticize it for excessive gas consumption.

Noises and vibrations? There are fewer of them, much fewer! In the city, one might say, there are no vibrations at all, and the cabin is relatively quiet. Why relatively? Previously, everything was shouted over by the itching of toothy tires and the voice of the transmission.

Now the tires do not make noise, but against this blissful background parasitic noises have become audible. The “crickets” in the upholstery and the air conditioning fan are soloing, and a thin squeak from the transfer case remains. But there is progress.

On a suburban highway, Urban sensitively follows steering turns, and the rear axle does not “steer” as in the old days. Only during rapid overtaking, when the speed exceeds 100 km/h, do noises and vibrations increase.

What about off-road? Plastic bumpers are not metal. Those areas that are painted in body color are easily scratched. But the most vulnerable places are blackened, so minor damage is not so noticeable, and it’s easier to touch up..

Otherwise, the Lada 4x4 with the Urban prefix is ​​still the same good old Niva, whose cross-country ability still causes admiration.

FROM THE BEST CELLARS

A car is not wine; it doesn't get better with age. And in the case of Lada 4x4? In the year of its thirtieth anniversary, which was celebrated in 2007, up to 87% of VAZ exports were from this model. The annual production was about 35 thousand cars. Then a large-scale modernization was carried out with the expectation that the car’s potential would be enough until 2015. Was it enough?

In the first half of this year, 20,800 cars were sold - a thousand more than in the same period last year. Lada 4×4 is one of the ten best-selling models on the Russian market! And in terms of the number of domestically produced components (75%) it is the leader among Tolyatti cars.

Urban is not the last variation of the old lady. A new modernization is coming. This time the calculation is for five years: the car should remain in production until 2022. Then, if everything goes according to plan, a new generation will see the light. There are plans, there are contracts, there is a soulless designation of Lada 4x4. And there is a well-known name that now belongs to the GM-AVTOVAZ joint venture...

Popular recognition allows you to break prohibitions and call things by their proper names. Long life to you, Niva!

Integrated bumpers and a minimum of chrome parts refresh the Urban.Integrated bumpers and a minimum of chrome parts refresh the Urban.

Replacing engine components

If we consider the Niva in relation to the new years, then we should take into account that engine tuning comes in two options:

Recently, chip tuning has become very popular, which allows you to significantly increase the power indicator in the shortest possible time. However, this tuning method should be treated with some caution, which we will discuss in more detail later.

Not all SUVs of domestic origin have an on-board computer. At the same time, we should not forget that some on-board computers are in poor condition and in fact do not affect the operation of the engine.

When considering this tuning method, we note the following points:

• You can increase the power by about 10-30 hp. or more. It all depends on what parameters were set before tuning.
• It is recommended to entrust this type of work to specialists who provide services in this field of activity. This is due to the fact that incorrectly carried out chip tuning can cause various problems with engine operation.
• The technical condition of the internal combustion engine design largely determines whether chip tuning can be carried out. If the motor is in poor technical condition, then increasing the load causes rapid wear. Therefore, if the process in question is carried out correctly, a complete diagnosis is first performed.
• As a rule, the automaker sets minimum power values, leaving a margin. If chip tuning has not been carried out previously, the programmer will be able to configure the engine to increase its power. If the modification in question has already been carried out previously, it will no longer be possible to carry it out again.

In general, we can say that chip tuning is carried out in many cases when it is necessary to increase engine power. However, in order to significantly increase traction, it is necessary to improve the geometry.

Modernization of the off-road features of the Chevrolet Niva contributes to a significant expansion of the vehicle’s capabilities:

• the upper shock absorber mounts are strengthened;
• The fastening of the upper bolt holding the front axle gearbox is being modernized.

Additionally, you can install a hydraulic power steering control, double or gas springs instead of the standard ones. All this is quite expensive, but if you do this tuning, you will never regret it.

The appearance can be significantly changed using the following details:

• front and rear bumper protection;
• thresholds;
• spoiler;
• kangurins.

You can see how tuned Chevrolet Nivas look in the photos or video clips attached at the end of the article.

Engine VAZ 21213 1.7 l. carburetor/injection (21214) in-line 4-cylinder with overhead camshaft, Niva timing belt has a chain drive. Based on the 214 engine, the VAZ 2123 engine is produced for the Chevy Niva; the differences in adapting the block for installing a pulley in the engine compartment and mounting attachments are technically almost identical.

The main differences between the VAZ 21213 engine and the 2106 are the cylinder diameter is 82 mm, the cylinder head, the Niva 21213 engine block from the 2106 is smaller in height. Among the advantages of the 213 engine, it is worth noting the presence of a chain tensioner (no need to tighten it) and hydraulic compensators (no need to adjust the valves).

The simplest modernization of a Chevrolet Niva engine involves replacing certain parts. First you need to bore the sleeves. After this, you need to select pistons and special ring-shaped elements that have a certain size.

The next step is to equip the engine with a crankshaft with larger arms and smaller connecting rods. The result of the above actions will be an increase in engine volume from 1.7 to 1.9 liters, and, consequently, power will increase.

It is also worth thinking about increasing the volume of fuel going to the cylinders. To do this, the cylinder head is modified, namely, the intake and exhaust ports are bored, the valve is replaced with a larger one, the valve seats are bored or completely changed.

Let's sum it up

There are quite a large number of ways to modernize the Niva engine, all of them have their own specific features. It would seem that replacing consumables with better ones is an insignificant upgrade, but it allows you to increase engine power by several tens of horsepower. More significant upgrades also improve the technical qualities of the engine, but do not forget about the increase in load, as a result of which its service life is reduced.

It is recommended to entrust serious engine modernization to professionals. This is due to the fact that even minor mistakes made can cause rapid wear and tear of the structure and render it unusable. If the engine is in poor technical condition, then attention should be paid to the possibility of completely replacing it: the amount of work and costs are reduced. The motor must be not only powerful, but also reliable, which should not be forgotten.

Geometry improvement work

Due to the low engine efficiency and low wear resistance, mechanical tuning of the Niva 4x4 engine is almost mandatory. Such work is called work to change the geometry of the power plant. You should start modifying the power plant by upgrading the carburetor. We do the following:

1. We change jets with an indicator of 1 kam to a jet with an indicator of 2 kam;
2. Renewing the accelerator pump nozzle.

If there is dirt or carbon deposits in the carburetor, we clean it manually. To do this we need a rag, gasoline and physical strength. If the dirt is very stubborn, a high-pressure cleaner or other device designed for washing the car will help. You can also use special “baths” to remove dried dirt from parts. In this way, the fuel supply to the gas distribution mechanism can be significantly improved.

If you are the owner of an injection Niva, then independently modifying the injector is unacceptable. Only a professional with knowledge of software can perform such tuning of the Niva engine.

Do-it-yourself turbine installation in Niva

Engineers have long been of the opinion that it is the turbine that provides a surge of greater power due to the active enrichment of the mixture. It is worth considering that installing a turbine is not a complicated modification, but the high cost of the compressor may become an obstacle to such tuning.

The design of the installed turbine is usually quite simple:

• The central part is a shaft that receives rotational motion.
• The impeller of the supercharger and turbine is installed on the shaft.
• The exhaust gases become a kind of drive, which also makes it possible to significantly increase the efficiency value.

The fact that the shaft does not receive rotational motion from the crankshaft itself or related mechanisms can significantly increase the efficiency of the installation and its power. It is possible to install the turbine yourself, but due to its relatively high cost, about 40,000 rubles for the simplest model, it is better to entrust the work to professionals.

Content

When looking for a cross-country vehicle that can be tuned, you should pay attention to the Niva Urban. This model is not significantly different from the regular version of the Niva; the automaker has made minor improvements. Today, tuning of the Niva Urban 4x4 , since this car is a good base: a small base, high ground clearance, large wheels and much more. Let's take a closer look at all the features of tuning this car.

We will improve the exhaust system

Since the exhaust system can increase the power and efficiency of the engine, tuning the VAZ-2121 engine includes the installation of modern exhaust and intake manifolds.

With their help, the process of air supply and exhaust gas removal will be optimized, and the efficiency of the power plant will become higher. To increase engine power, it makes sense to install a resonator from the muffler. With it, exhaust gas removal improves, and the running engine acquires a beautiful bass sound.

Tuning the VAZ (Niva) engine also includes moving the muffler further to the rear axle, when almost the entire exhaust system is dismantled. In this case, the resonator can be installed from any car, for example, from a Moskvich.

Oil pump work

Lubricant supplied through the oil pump extends engine life. To improve the performance of the oil pump when tuning the Niva engine, you need to take another pump and cut off part of the housing with the parting plane from it. The thickness of this “pancake” should be about 11 cm. Using milling, cut off the excess and leave a thickness of 10 mm.

Next, do the following to remove chamfers on the edges of the teeth:

1. We compress, that is, remove, the drive gears.
2. We trim one of the gears by 0.75 mm on each side.
3. We cut the second gear to 11.5 mm (after trimming).
4. We repeat the operation with the remaining gears (driven).

Let's start working on the body. To do this we do the following:

1. We release the driven gear axis from the housing.
2. We form a longer axis from the drive roller.
3. We insert the resulting axle into the body.
4. We press the narrow gear onto the second drive shaft.
5. Press on the wide gear.
6. We fix the wide driven gear in the housing.
7. We install a narrow gear into the housing.

The lower classes can't, the upper classes don't want to

I won’t bother you - I have a modified 105 hp engine under the hood. with a maximum torque of 160 N.m versus 79.6 “horses” and 127 N.m for the standard car.

Who is Volodya? The head of the LSGA engineering center, Vladimir Sharandin, is a specialist in engine development and has been a good friend of mine for almost two decades.

The idea to start working on Niva was born spontaneously. We discussed another car, but the conversation itself led to the all-wheel drive of the GM-AVTOVAZ joint venture. What does Niva lack in driving disciplines? Of course, engine vigor. Especially when driving on highways. Off-road, the lower row of the transfer case helps out, but on the highway... The car frankly falls out of the modern flow. This is especially noticeable during acceleration. Trucks have now become fast and overtaking them on Niva is quite problematic. You have to fire up the SUV ahead of time, calculate the situation almost to the horizon and, without resetting, so as not to lose speed, perform a series of overtaking. Dangerous? Yes! This is the problem Vladimir undertook to solve.

It is clear that no one was going to make a youth car for street racing - the device was not for such an audience. It was about safety: the fight against prolonged overtaking and at least some reserve of agility under the gas pedal. At the same time, it was necessary not to overdo it. It was necessary to maintain all the best off-road qualities, not to overload the transmission with excess torque, keep fuel consumption at the same level and fit all this into a budget feasible for Niv owners. Oh yes, a mere trifle, the cylinder volume is standard - no work on the block, pistons, connecting rods or crankshaft. We don’t touch the bottom of the engine, we only modernize the top: cylinder head, exhaust, intake.

The Niva LSGA with a 105-horsepower engine has not lost its best qualities on off-road. The Niva LSGA with a 105-horsepower engine has not lost its best qualities on off-road.

How to increase the power of a field

The Niva car is not distinguished by hurricane dynamics and high maximum speed. Consequently, those who want to get more power and thrust from this machine have developed and tested various methods of engine tuning, differing in the difficulty of installation and use and the resulting result.

You will need

• The original Niva. The car must be in good working order and as less worn out as possible.

Instructions

1. You can independently increase the power of the Niva engine using the following methods: - install lightweight valves and their guides, a lightweight flywheel; - increase the cross-sections of the exhaust and intake channels of the cylinder head; - increase the cross-section of the intake manifold; - install a camshaft, which increases power and torque by medium and low cycles; - install a direct-flow exhaust system; - install a sports (lightweight) timing drive. - install a zero-resistance air filter; - bore the engine cylinders (in order to increase the working volume). For a carburetor engine, a Solex carburetor with diffusers 24-26 is additionally installed mm instead of the standard one. The ignition system is changing to electronic with a Hall sensor from more modern VAZ models. A motor with increased power will require the installation of a radiator with an increased cooling area. The described program allows you to remove up to 120 hp from a VAZ-2121 engine. When installing 2 Solex carburetors, it is possible to increase the power to 136 hp. 2. Many specialized companies offer the installation of turbocharging for Niva and Chevrolet Niva cars based on the GARETT GT17 turbocharger. Installation cost is about 60,000 rubles. Result: an increase in power from 80 to 105 hp, torque from 120 to 170 Nm, and a slight decrease in fuel consumption. The source of the engine is preserved, the fuel quality is gasoline with an octane rating of at least 95, and maintenance is standard for turbocharged cars. 3. Fine-tuning of the motor control system with support for chip tuning. Metamorphosis of the program in the electronic control unit eliminates shortcomings made by the developers and not noticed during testing. For a standard Niva engine, chip tuning will give an increase in power and torque of 10-15%, for a turbocharged one up to 35-40%.

The key parameter of any internal combustion engine is its working volume, measured in liters. This value has a direct impact on the power developed by the motor. And the more powerful the engine , the more dynamic the car and the higher the ease of driving it.

You will need

• – machine for boring cylinder blocks,
• – new piston group.

Instructions

1. Boring a new engine makes no sense, except for those cars that are being prepared for participation in sports competitions. In all other cases, the cylinder block is bored during a major overhaul of the power apparatus. 2. Due to the fact that the cylinder block is bored using special industrial equipment, during advance preparation for this process, the engine is removed from the engine compartment of the machine. 3. After completing this task, the motor is completely disassembled, and after this, all the parts from which it was recently assembled are checked. 4. The “bare” engine cylinder block is delivered by auxiliary transport to the workshop to an expert in boring the specified parts. The master, after researching and performing the necessary measurements of the internal surfaces of the cylinders of your block, will give recommendations on obtaining a repair piston group of a certain size, which, after purchase, is delivered to him, to the workshop. 5. After boring the cylinder block, the engine is assembled, after which a thorough repair of the engine is considered complete, and as a result of the repair, the power unit is endowed with an increased displacement and acquires increased power. Video on the topic

One of the options for increasing the engine power of a Niva car is chip tuning of the electronic control unit (ECU). Making changes to the software of the specified device optimizes the operation of the injection engine . As a result, the crankshaft rotation speed increases, operating fuel consumption decreases and engine power

You will need

• – computer or laptop,
• – adapter,
• chip tuning software.

Instructions

1. It’s no secret that the firmware of the Niva car’s ECU, installed by the manufacturer in accordance with technical regulations, significantly limits the likelihood of its power plant. 2. Let's say the fuel-air mixture supplied to the engine is deliberately lean, although the engine was originally designed to work with a richer mixture. But at the insistence of environmentalists, the supply of gasoline to the injectors was reduced. 3. In order to make metamorphoses to the existing engine , you need to connect the computer or laptop adapter to the diagnostic connector of the car. Of course, the appropriate applications must be installed on the computer. 4. Using the software, the operating parameters of the engine systems are adjusted, as a result of which the engine’s is optimized, and it becomes more responsive due to modified injection and increased power. The dynamics of the Niva car while driving also improves. 5. Paradoxical but true. Despite the increased supply of gasoline to the working mixture, the vehicle's operating fuel consumption is reduced, which has a beneficial effect on the ecological atmosphere of the environment. Note! There are programs on sale on the market that are intentionally prepared for chip tuning of Niva cars.

What Russian doesn't like fast driving? If there is no chance of buying a car with a huge number of horses under the hood, the search begins for methods to increase engine power of your car. It will be easier to do this with a carburetor engine, because in an injection engine the control is carried out from the control unit. You can “work magic” with a carburetor in your own garage with basic auto mechanic skills.

Instructions

1. Injection system - carburetor. A primitive method to slightly increase power is to replace the jets in your carburetor. True, using this option, you will increase not only power, but also gas mileage. 2. Another option is to replace the camshaft. In this case, you are changing the camshaft to a shaft with different cam angles and heights, which will provide a large amount and duration of valve opening. This will change gas exchange and increase power. But there are negative results from replacing the camshaft - increased loads on the gas distribution mechanism, valves may begin to stick. To prevent this from happening, it is necessary to install sports (titanium) valve springs. The valves can break off due to a sharp lift by the installed camshaft; therefore, the valves themselves need to be replaced with reinforced ones. 3. A more labor-intensive option is boring the cylinder head (cylinder head). When boring the cylinder head, the diameter of the intake and exhaust channels increases, and valves with huge diameter plates are installed. The disadvantage of this method is major wear and tear on the gas distribution mechanism. 4. Boring the cylinder block. By choosing this method, you increase the engine displacement and, consequently, power. The disadvantage of this method is the risk of damage to the engine cooling system. If the cylinder block is made of light alloy metal, there is a possibility of the engine overheating. 5. Nitrous oxide N20. This forcing option is the most unreliable and quite precious. Nitrous oxide is supplied to the cylinders with fuel. It is a well-known recreational gas used for anesthesia. The thesis is that under the influence of high temperature, nitrous oxide breaks down and an additional proportion of oxygen is obtained in the cylinders, which increases detonation. With this method, there is a risk of burning out the piston rings and the pistons themselves. Using it, it is better to replace the pistons with reinforced rings. Also the source of the motor is invisibly reduced. At the time of injection, engine power can increase by 50-80 hp.

Gasoline with a high octane number is produced by two methods: using difficult technological operations, which increases the cost, and by adding anti-knock additives. From 76 gasoline it is absolutely possible to obtain 92, from which fuel with an octane number of 95 is easily made.

You will need

• – anti-knock substance.

Instructions

1. Methyl tert-butyl ether, which has the form of a colorless, flammable liquid with a specific odor, is especially widely used. It is characterized by low toxicity, but has a high octane number. When adding 15% ether, the octane number increases by 12 units. Many gasolines are produced using just such an ether class additive. MTBE is highly volatile, which makes gasoline easier to evaporate in hot weather. 2. To increase the octane number, it is also possible to add alcohol to the fuel. The addition of 10% ethyl alcohol to the entire liquid allows you to change AI-92 to AI-95, while reducing the toxicity of the exhaust gas. However, you should be more careful when using alcohols, because they can cause the formation of special vapor locks that disrupt the operation of the car’s fuel system. Moreover, ethyl alcohol is highly soluble in water, which requires the use of special fuel storage conditions and monitoring of the alcohol content. If the storage data is not observed, this may cause water to appear in gasoline, which leads to increased fuel consumption and the appearance of ice jams in the fuel system in winter. 3. One of the most effective anti-knock agents is tetraethyl lead, which looks like a colorless liquid and has a boiling point of about 200 degrees. It is inexpensive and effective - at a concentration of 0.01% it is possible to increase the octane number by 3 points. Tetraethyl lead must certainly be mixed with another substance that will ensure the removal of lead oxides from the combustion chamber, which are deposited on the valves and pistons of the fuel system. However, when combined with ethyl bromide or dibropropane, the substance forms leaded gasoline, which is extremely toxic. Inhaling the fumes of such gasoline causes the accumulation of lead in the body and is the cause of multiple sclerosis. Note! High-octane fuel ensures more stable and economical engine operation, reducing the number of harmful emissions into the atmosphere. However, low-quality fuel leads to serious damage to the car. Be careful and only refuel at proven gas stations. Helpful advice: Fuel with an unnaturally high octane number is of lower quality than gasoline with a “natural” octane number.

Even such a recognized all-terrain vehicle as the Niva sometimes needs fine-tuning so that its cross-country ability satisfies the owner. To do this, increase the ground clearance of the car, which in the basic configuration is not too large. The power suspension will protect the body from damage during impacts and will help jack up the car if it gets stuck.

You will need

• Lift kit, wheels of increased diameter, elements of power body kit.

Instructions

1. the Niva chassis , simply replace the wheels and tires. In the base, the car is equipped with not the best version of tires, because the main criterion when choosing it is low price. For off-road use, choose wide tires, with a huge number of stiffening ribs on the tread. It is desirable that there are special ribs on the sides, which are called lugs. 2. If it is necessary to increase the wheel offset, change the wheels to match the tire size, install a reinforced hub on double-row bearings, and on the hub stands made of a special alloy, which will help increase the wheel offset. When increasing the wheel diameter, change the main pairs of axles, increasing gear ratio. It is easy to calculate the new gear ratio - to do this, find the ratio of the new wheel diameter to the old one and multiply by the initial gear ratio. From the available options for the main pairs, choose the set that is closest in terms of your collections. 3. If increasing the Niva ’s ground clearance by replacing wheels is unsatisfactory, lift the car’s suspension using special spacers for its elements. To do this, purchase a lift kit, which for the front suspension is a set of washers installed under the spring and the upper arm, while swapping the steering knuckle arms so that they can move normally and not touch other suspension elements. For the rear suspension, special spring cups are provided, which are mounted on top, and brackets are installed below, which extend the shock absorber by 5 cm. 4. To protect the car from possible damage, install a power body kit on it. As usual, it consists of a front and rear bumper, a guardrail and power sills. When choosing reinforced bumpers, consider the likelihood that you will have to lift the Niva on it with the help of a rack and pinion jack. When choosing a “kenguryatnik”, keep in mind that its main function is not to give a hostile appearance, but to protect the headlights and radiator. When traveling to the forest, install branch guards, which are cables stretched from the roof rack for the roof rack. They will truly protect your windshield. Video on the topic

There are two ways to increase the octane number of gasoline: simple - by adding anti-knock agents (special additives) to it, and difficult - using a special technology that will increase the cost of the product. It is possible to “make” AI-92 from AI-76 gasoline, and AI-95 from AI-92. However, this also has its negative side. Low-quality fuel at unknown gas stations, where the octane number is unnaturally increased, leads to serious and expensive car damage.

You will need

• – methyl tert-butyl ether;
• – ethyl and methyl alcohol;
• – tetraethyl lead.

Instructions

1. Add MTBE (methyl tert-butyl ether), which is a flammable colorless liquid with a specific odor, to the gasoline. This is one of the means now especially used to increase the octane level. MTBE has a high octane number and is non-toxic. When adding 10-15 percent to gasoline, the increase will be approximately 6-12 units. Many high-octane gasolines are produced using this or a similar ether-class additive. The disadvantage of MTBE is its high volatility, because in hot weather it can evaporate from gasoline. 2. Add alcohols (ethyl and methyl) to gasoline. Say, a 10 percent addition of ethyl alcohol to AI-92 increases the octane number to approximately 95 units. In addition, the toxicity of exhaust gases is reduced. But the use of alcohols leads to an increase in intense vapor pressure. This may contribute to the formation of vapor locks in the fuel system pipeline. In addition, an important task is the excellent solubility in water and hygroscopicity of ethyl alcohol. This requires special storage conditions for the mixture and periodic monitoring of the contents of the alcohol component. If this is not observed, water may appear in gasoline, and this leads to increased fuel consumption, poor combustion, and if its percentage is high, ice jams may appear in winter. 3. Add tetraethyl lead Pb(C2H5)4. TES is considered one of the best anti-knock agents. It is an oily, colorless liquid with a boiling point of approximately 200°C. The use of TES as an anti-knock agent began in 1921, and today it is one of the most effective and inexpensive means of concentration 0.05%. It gives the chance to increase the octane number of gasoline to 15-17 points. Tetraethyl lead is not added in its pure form, since during combustion it forms carbon deposits - lead oxide, which is deposited on pistons, valves and other parts. To remove it from the combustion chamber, ethyl bromide, dibromopropane, and dibromoethane should be used. When burned, they form volatile compounds with lead, which are easily removed from the combustion chamber. A mixture of thermal power plants with these components and a special dye is called ethyl liquid, gasoline with such components is called leaded. Today, the production of leaded gasoline is prohibited because it has a high degree of toxicity. Lead, accumulating in the body, causes multiple sclerosis because it is poisonous. Leaded gasoline is prohibited for use in vehicles equipped with a catalytic exhaust gas converter. They are damaged when the engine is running after a few hours. Antiknock agents are also isooctane, neohexane, isopentane, benzene, toluene, and acetone. Video on the topic

To this day, there are still quite a lot of VAZ cars of the classic layout and front-wheel drive with carburetor engines on domestic highways. Car owners often face the question of how to increase its power. There are a lot of methods for solving this problem.

Instructions

1. Zero resistance air filter Start with something simple: install a zero resistance air filter, the so-called “nulevik”. It is easy to purchase in auto parts markets or in online stores. Installation method: Start by dismantling the old filter housing and the air duct that supplies warm air in cold weather, the crankcase gas exhaust pipe. Install the zero resistance filter according to the attached instructions. An addition of 3-5 percent of power is guaranteed to you. 2. Direct-flow muffler Install a direct-flow muffler. Start by removing the resonator and old muffler. Leave the exhaust manifold, the so-called “pants”. Installation will not take much time; the clamps and hanging rubber bands will remain the same. Choose the pipe diameter according to your preferences. But there is one drawback: the noise during acceleration and release of gas may not be liked by people around you, and problems with traffic police inspectors are not excluded. 3. Increasing the compression ratio Remove the cylinder head, mill it in a specialized workshop by 0.5-1 mm, thereby reducing the volume of the combustion chamber and increasing the compression ratio. Get a 12-15 percent increase in power. Please note that you will have to use gasoline with an octane rating of 95-98 after the procedure described above. 4. Installing a sports camshaft The sports camshaft ensures optimal supply of a full charge of the mixture to the cylinder, which increases the valve lift height. To increase engine power, tuning cams are installed, which are characterized by an exceptionally smooth profile, ensuring correct operation of the gas distribution mechanism. The specificity of sports camshafts is that their use pushes back the detonation line, especially at low crankshaft speeds. There are many types of sports camshafts designed for various purposes: - low torque shaft for city driving; - multifunctional "city-highway" shaft; top shaft "track". A camshaft with less valve lift provides positive results at low crankshaft speeds, while a camshaft with huge lift allows for increased power at high frequencies.

A carburetor is a special device in the power supply system of carburetor engines, which is designed to mix air and gasoline, which creates a combustible mixture. In modern cars, carburetor systems have been replaced by injection systems.

You will need

• - tools.

Instructions

1. In order to achieve maximum power, the carburetor at the inlet (drivers call it a “huge hole”) must have minimal resistance, since otherwise it will be difficult to achieve a good mixture and fill the cylinders at high and medium cycles. However, when the carburetor throttle valve is sharply opened, the speed of air flow and vacuum in the diffuser decreases significantly, and the amount of fuel sucked in decreases, causing the combustible mixture to become leaner. Leaning of the mixture leads to the fact that at low cycles the power tends to zero (this fact becomes more noticeable with huge D of the main diffusers). 2. By installing a standard SOLEX 073 carburetor, you get a wonderful increase in high and medium cycles, but at the same time increase fuel consumption, and besides, there is a failure in low cycles. Carburetor tuning in this case consists of increasing the flexibility of movement in high and medium cycles, achieving filling in low cycles, as well as in transition modes. 3. Increasing carburetor power is more than just replacing old jets with new ones with a huge cross-section. This, in addition to everything else, is a metamorphosis of calibration data, the “filling” of the carburetor, as well as the introduction of additional systems into the design of this device. To do this, drill additional metering channels in the carburetor body, then equip the carburetor with additional equipment and configure this device. Note! To achieve maximum power on a sports car, several carburetors should be installed at once. Helpful advice The uniformity of the distribution of the fuel mixture among the cylinders largely depends on the intake manifold. Often the reason for the uneven separation of the mixture lies precisely in the design errors made when designing the collectors. In order to solve this problem, it is enough to remove part of the partitions located between adjacent channels.

Modern engines are limited in their parameters, because manufacturers are trying to make them not so much strong as economical, environmentally friendly and reliable. Consequently, by sacrificing the last parameters, the power of virtually any engine can be significantly increased.

Instructions

1. Chip tuning is one of the most primitive and accessible methods. It consists of replacing the motor control unit with a tuned one, developed by a specialized company. Or in reprogramming an existing electronic unit. Depending on how well the new program or the latest unit was made, engine power increases up to 50% with slightly increased fuel consumption. 2. Installation of a sports exhaust and air intake system that reduces power loss. This is an air filter with zero resistance, a polished intake manifold, direct-flow mufflers with an increased cross-section of pipes. A set of such measures, on average, gives an increase of 10% in power, certainly without affecting the efficiency, environmental friendliness and safety of the engine. True, the cost of such parts is several times higher than standard devices. 3. Installation of a compressor or turbocharger. These devices compress the air-fuel mixture, forcing more fuel into the cylinders. Depending on the boost pressure, power can be increased by 1.5-2, or even 3 times. The difference between a compressor and a turbocharger is that the compressor is driven by the crankshaft of the engine, and the turbocharger is powered by the energy of the exhaust gases. In proportion to the increase in power, fuel consumption also increases. The motor begins to experience significantly larger loads, and consequently its source decreases. 4. Increasing the engine displacement and metamorphosis of the compression ratio are one of the most common techniques often used by athletes back in the USSR. Boring the cylinders, installing crankshafts and camshafts with different alignments, replacing the head gasket allows you to double the power even without the use of supercharging in cases where, say, its use is prohibited by competition rules. An over-bored engine begins to consume more fuel, and an increased compression ratio requires the use of only high-octane gasoline. Currently, this method is used infrequently, because it is cheaper and easier to install a more powerful engine on a car than to bore a dilapidated one. 5. Use of lightweight pistons, connecting rods and other moving engine parts. This allows you to reduce energy losses to set them in motion. It is very difficult to produce such parts independently, and ready-made kits are not sold for all models. The cost of such kits is also very high, because the finished kit not only contains lightweight parts, but also provides for an increase in the compression ratio and metamorphosis of the valve timing in order to obtain a fixed increase in power. 6. Recently, the possibility has arisen of converting the engine from an 8-valve to a 16-valve by purchasing and installing a new cylinder head. A head with 4 valves per cylinder improves the filling of the cylinders with the fuel mixture, which has a positive effect on engine power. As usual, a new cylinder head requires replacing the air filter and spark plugs, because the old ones will no longer cope with their functions. Video on the topic Please note! The transmission and gearbox of the Niva are not designed for high power. 120-130 hp withstand without special tasks. With a subsequent increase in power, you will have to strengthen or change the gearbox, drives, gearboxes, etc. Useful advice The upgrades described in paragraph 1 can actually be carried out in a garage. Turbocharging installation and chip tuning are performed only in specialized workshops

Mechanical modification of the Niva engine

For a 4x4 class car, which is the Niva, mechanical tuning is mandatory. The reason is the low performance of standard components in terms of geometry and wear resistance.

Engine tuning should begin with improving the carburetor. Here you should replace:

• Jets. Instead of 1 camera (t110 in ZD150), 2 cameras are installed (t125 in ZD135);
• Accelerator pump nozzle.

Be sure to clean the carburetor from carbon deposits. This can be done manually using a rag, gasoline and physical force, high-pressure washers designed for home car washing or specialized baths for cleaning parts. All of the above will allow you to debug the fuel supply mechanism to the timing belt (gas distribution mechanism).

Mechanical intervention in the injector is unacceptable; its adjustment is carried out using special equipment and software.

The second stage is tuning the timing belt and other mechanical components of the engine. You should immediately start correcting the geometry of the power unit. To do this, it is necessary to increase the diameter of the valves. It should be noted that sealing them increases motor power by up to 10%.

The same operation is carried out with the pusher wells of the intake and exhaust channels. This entails replacing the pusher itself. It is recommended that its diameter be at least 1 mm. This upgrade is very important for the 4x4 layout. The next step is to replace the injectors and control unit.

You can increase engine power by replacing the standard crankshaft with an advanced modification, as well as installing new piston rings. Installing a new crankshaft will give increased stroke to the pistons. In this case, they must be bored. Although many experts argue that this significantly increases fuel consumption, this operation cannot be avoided when replacing the crankshaft. All of the above operations also add power to the motor.

All of the above will significantly improve the technical performance of the Niva and reduce the wear of spare parts. The smoothness of the ride is also improved.

Refinement of the gas distribution mechanism

The timing also largely determines the power and other technical features of the engine. Tuning the gas distribution mechanism consists of increasing the diameter of the valves followed by sealing. As practice shows, such modernization allows increasing power by almost 10%.

In many cases, when improving the engine part in question, the pushrod is replaced. Its improvement consists in increasing the intake and exhaust tappets, which can significantly increase the engine power rating.

The modifications under consideration make it possible to improve the smoothness of the ride, reduce wear of parts, and significantly increase the power rating. Of course, there are other methods of engine modification that can achieve attractive values. An example is the case of modifying the oil pump, which also makes it possible to make the engine more torquey.

How much will such a service cost from a specialist?

The price depends on whether the car owner will pick up the controller, in this case the cost will be 12,000 thousand rubles. If the controller remains with the master, then this service will cost the driver 10,000 thousand rubles. And for the Niva 21214M version the cost will be 7,000 thousand rubles. Of course, in different regions and cities, prices for chip tuning may increase or decrease, but not by much.

If you still decide to do engine tuning yourself, be sure to watch this video:

Chip tuning of a Chevrolet Niva significantly increases its capabilities, but do not forget that only a professional can perform this procedure efficiently. If you are confident in your abilities and (or) want to save a tidy sum, you can try tuning the car yourself, but the risk of serious damage rests entirely on your shoulders.

Many of those owners who drive a Niva Chevrolet note one, but quite significant drawback on this car - the rather low final engine power. Due to the fact that the car has increased cross-country ability, its weight is quite large, and 80 “stock” horses are simply not enough.

VAZ 21213

"Niva Taiga" History and tuning of VAZ 21213

Story

Just think - the Volzhsky Automobile Plant did not make changes to the design of the VAZ 2121 Niva, released in 1977, for almost 16 years! Such an original car has justified itself. However, nothing lasts forever - in the early 90s, the Niva began to become obsolete. Therefore, it was decided to carry out some modernization of the existing car.

The first result of this modernization was the appearance of a restyled version of the Niva - VAZ 21213, which entered mass production in 1994. The car received the name “Niva Taiga” from the designers. However, it turned out to be so similar in appearance to its predecessor that car enthusiasts pretended that they had not noticed the appearance of the new model, continuing to call the “Taiga” “Niva”.

Indeed, the external similarity between the VAZ 2121 and the VAZ 21213 is obvious - they are still the same three-door, four-seat all-terrain station wagon. But there are still differences. And with a more detailed study, they become increasingly easier to notice. Thus, the rear door was extended to the bumper, thereby reducing the loading height. The rear light block, which the Niva inherited from the VAZ 2106, was replaced with its own square one. The atmosphere inside the cabin has also changed - its comfort has increased (largely due to the installation of updated front seats), a new dashboard has appeared (borrowed from the VAZ 2108). Otherwise, the appearance of the Niva Taiga remained the same as that of the VAZ 2121.

Niva with turbine

The most common way to add power to an engine is to install a turbine or compressor, which will significantly increase the volume of air entering the power plant.

Installing a turbine is not a complex tuning solution, since the turbine itself has a fairly simple structure. The supercharger and turbine impellers are mounted on the same shaft, and the exhaust gases are the drive. Thus, we can observe the most efficient use of energy from combustion products in a car. The absence of interaction between the crankshaft and the turbine shaft also increases the efficiency of the power plant.

In general, the Niva engine can and should be modified, and then your car will become more powerful and last much longer. This is what we should strive for!