Tuning the VAZ 2114 engine: how to increase the power of the car’s power unit

VAZ engine chip tuning

A change in the design of an internal combustion engine can be called a significant modernization, which will lead to a change in its basic characteristics. However, this tuning method is quite expensive; it can only be done independently if you have certain skills and experience, and the end result is impossible to predict. Some VAZ vehicles are equipped with on-board computers that regulate the operation of the internal combustion engine. The installed program determines the main characteristics of the engine: it affects power, speed limit, fuel consumption, idling and other features of engine operation.

When considering chip tuning, we note the following possible results:

• Increase power by 5-10%. At the same time, the possibility of increasing power depends on what settings were set at the factory, that is, whether a power reserve was left, as well as on the condition of the engine. There are cases when engine power was increased by 20%, which can significantly reduce the service life of the unit.
• Fuel consumption can be reduced by approximately 5%. Reducing fuel consumption will lead to a smooth increase in speed, that is, a quick start from a traffic light will no longer be possible. Therefore, this modification is suitable for the driver who is more concerned about savings than the driving sensations.
• Make idle smoother and more stable.

Tuning the VAZ 2114 engine by installing new firmware should be carried out exclusively by professionals, since mistakes made can lead to significant engine failures. Recently, there is no need to remove the on-board computer to read information from it and rewrite the program - the connection is made through a connector, for this a computer and a special adapter are used. During operation, only partial disassembly of the panel in which the connection connector was hidden is performed.

The work on flashing the chip looks like this:

1. Engine diagnostics are carried out to identify faults. 2. After determining the state of the internal combustion engine, a computer is connected to the chip. 3. When you connect a computer, tables with the configured settings are loaded. 4. The programmer loads preset settings, for example, to increase power by 10%. 5. After making the settings, the engine is tested and adjustments are made.

It should be understood that unique settings are selected for each engine, which depend on the state of the internal combustion engine and other factors. It is possible to carry out the work in question independently, but only if you have certain knowledge and experience. Mistakes made can lead to settings being reset and invalid parameters being set. It should also be taken into account that after chip tuning, it is necessary to perform engine diagnostics, since otherwise there is a possibility of severe wear due to the introduction of incorrect parameters.

Table of factory characteristics of the VAZ-2114 engine

How to increase engine power

To make the correct engine tuning, you need to choose one of several ways to modify the power unit. There are four types of engine modifications that will not cause harm to the latter and will not reduce the life of the engine.

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• cylinder boring;
• installation of a new air filter device;
• turbine installation;
• chip tuning or electronic modification of the engine's brains.

You also need to take into account that as the engine power increases, fuel consumption will also increase. Therefore, before you decide to tune your engine, think about whether you need increased fuel consumption.

Increasing the volume of engine chambers

Let's consider the first method of engine tuning - increasing power by increasing the volume of the combustion chamber. To do this, the diameter of the cylinders is bored, and the surface is carefully ground to a mirror finish. The procedure is carried out on a special machine.

They replace regular pistons with forged ones, and the rings with lighter ones. Replace the connecting rods that connect them to the crankshaft.

Experienced mechanics recommend replacing oil injectors if forged pistons are installed. This is necessary for good oil cooling to occur. Since old injectors become unsuitable for further operation.

Installing a new air filter

To properly tune the engine, install an intake filter with reduced aerodynamic resistance. This ensures that air enters the mixer with the least effort. As a result, power increases by four horses.

Attention! In this case, fuel consumption is reduced, which has a beneficial effect on the car owner’s wallet.

Tuning by installing a new air filter is done as follows:

1. Grind the internal intake channels.
2. They install receivers.
3. Change the throttle valve to a new one with a larger diameter.

A direct-flow muffler is installed at the exhaust. All work is carried out in service centers. Under no circumstances should boring channels be carried out in a garage.

Turbocharging installation

Engine power is increased by installing turbocharging. Despite its great efficiency, many car enthusiasts do not dare to take this step due to the high financial costs. Installing a turbocharger requires contacting specialized workshops.

First of all, you need to choose a turbine suitable for the VAZ 2114 engine. There are two types of this device:

• low pressure turbocharger. By installing such a compressor, there is a chance to increase power by 15 percent. However, you will have to tinker with installing such a device;
• high pressure turbocharger. Increases power by 30 percent.

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Another point why car enthusiasts do not dare to install turbochargers: the life of the engine is reduced. Since the motor is operated at full power at all times. Wear on parts increases and the engine heats up.

Therefore, you need to install a good engine cooling system. Under no circumstances should you pour water into it, as many car owners like to do. Always use antifreeze to cool power units.

Tuning the gas distribution mechanism

By tuning the gas distribution mechanism, you will not harm the VAZ 2114 engine. In addition, the 8-valve engine will reduce fuel consumption. And the power will be increased.

To tune the engine timing, do the following:

1. Bore the valve seats.
2. The intake and exhaust valves are changed to lightweight ones.
3. The bushings are also changed to light ones.
4. Install the split gear. But it must be configured correctly so as not to subject the engine to major repairs.

Next, let's look at what needs to be done with the split gear to increase the power of the motor.

Split gear method

To make the correct adjustment of the split gear, you need to set the piston to a point called TDC. To lower the speed or bring the speed to an average speed, make the gas-dynamic boost angle smaller and increase the angle of the opening exhaust valve.

To increase speed, the shaft is turned in the opposite direction of rotation of the crankshaft. In this case, the angle of gas-dynamic pressurization becomes larger.

There is another type of increasing the power of a domestically produced power unit. This is chip tuning. Specialists are involved. To improve engine tuning, the electronic engine control unit is reprogrammed. This is done using equipment called a programmer.

Experienced mechanics advise carrying out chip tuning in specialized workshops.

Changing the intake system

A more significant change can be called the modernization of the intake system. This method allows you to significantly increase the power of the installed engine. The essence of the method is to improve the filling of the cylinders, which reduces the intake resistance.

When considering the features of engine operation, we note the following points:

1. As the piston moves to the bottom point, resistance occurs in the air flow path, which leads to the loss of several horsepower. 2. In order to reduce resistance, the intake system must have fewer joints and irregularities. It is worth noting that ultra-precise measuring instruments should be used to identify irregularities, since a deviation of just a few tenths of a millimeter can lead to a loss of power.

In addition, tuning the VAZ 2114 engine involves installing a larger filter or one with zero resistance. Oddly enough, using a more expensive filter can significantly increase power. High resistance leads to loss of power. However, you should not neglect protecting the engine from the ingress of fine impurities. The installed filter must cope with the assigned tasks of cleaning the flow and fuel.

Features of exhaust system tuning

The vehicle exhaust system is increasingly being modernized. Oddly enough, the created resistance during exhaust gas removal leads to a significant loss of power. Moreover, almost all elements of the exhaust system affect the power indicator. This is due to the following features of this system:

• As the piston rises in the cylinder, it begins to push out exhaust gases.
• The exhaust gases can be considered as a continuous line.
• If strong resistance occurs in one of the areas, it leads to a significant increase in pressure in the system.
• If the pressure in the system increases, it becomes more difficult for the piston to push through the exhaust gases, which means a loss of power occurs.

Typically, sports cars are associated with loud noise from the muffler. This phenomenon is due to the fact that in order to increase engine power, a muffler with fewer barriers is installed, since in this case the resistance in the system can be significantly reduced. It is the barriers in the muffler that are responsible for reducing the sound emanating from the car. The solutions that are used for tuning the VAZ 2114 engine are as follows:

1. A larger muffler with fewer barriers is installed. 2. A large diameter exhaust pipe is installed. 3. In some cases, a more advanced exhaust gas removal system is installed.

Such a modification can lead to an increase in power by 10-20 horsepower. The result is not impressive, but it is worth considering that dismantling and installation work will not take much time, and the cost of modification is relatively low. When looking for an inexpensive way to improve an engine, you should pay attention to this method.

Useful video

You can get additional interesting information from the video below:

Published September 23, 2019

Many young car enthusiasts are thinking about how to increase the power of an 8-valve VAZ 2114 engine with their own hands. They do this because most often they buy a car with a weak engine due to lack of money. They are counting on increasing capacity. Tuning cannot be done on some old domestic engines. But the VAZ 2114 8-valve is suitable for tuning.

Therefore, next we will consider what can be done with the engine to increase its power.

Content

Changing the camshaft and cam profile

Tuning the VAZ 2114 engine provides for a significant modernization of the engine.

An example is modification of the camshaft and cam profile. The peculiarities of such tuning include the following points:

• A modified cam profile allows the valves to rise higher and stay open longer.
• Keeping the valve open for a long time leads to an increase in the filling of the cylinder with the fuel-air mixture.
• You can change the camshaft yourself, which requires turning or milling equipment, or you can purchase a ready-made version. One should take into account the fact that on sale you can find quite a few different camshafts that are suitable for the car in question. The main thing is to choose the right type of camshaft.

The modification in question will be inexpensive and will have an insignificant effect on the engine life.

However, the need to reconfigure the engine operation should be taken into account.

Increasing the volume of the cylinder block

Skilled mechanics can increase engine power by boring the cylinder block and increasing the piston stroke. Note that such tuning of the VAZ 2114 engine is not carried out often, as it requires significant investments.

The process of increasing engine volume can be characterized as follows:

• First you need to completely dismantle and disassemble the internal combustion engine. Only a mechanic with extensive experience can perform such work. Any work carried out during dismantling may lead to the fact that it will not be possible to reassemble the engine after the work has been carried out.
• After dismantling, the cylinder blocks are bored. As a rule, there is quite a lot of metal between the cylinders, as well as the cooling system channels. A few millimeters can be removed in order to increase the volume of one cylinder. However, it should be taken into account that all cylinders must be bored equally, otherwise the internal combustion engine will not work correctly.
• Due to the increase in the diametrical size of the cylinders, larger diameter pistons must be used. This point also significantly increases costs.
• To increase the piston stroke, a new camshaft, connecting rods and other elements of the piston system are installed.

The design of an internal combustion engine is quite complex.

In this case, all dimensions are maintained with a deviation of several hundredths of a millimeter. Therefore, it is almost impossible to independently increase the volume of an already installed engine without certain equipment and skills.

Power increase

Increasing the power of the VAZ 2106 engine is carried out in several stages. Of course, you can catch up on power characteristics superficially, but if we talk about full-fledged tuning, then it is worth understanding that the power unit is subject to modification entirely. This process takes more than one hour or day, so you should be patient. Why is it worth increasing the power of the engine - of course, with boring.

Boring

The VAZ 2106 power unit is bored on a special boring stand. But first, it’s worth deciding on the spare parts that are installed in the cylinder block. The best recommendation is the 82mm piston group from API.

At the same time, the pistons are 160 grams lighter than standard ones, which reduces the weight of the power unit. So, for these pistons you will need sets of oil scraper rings, also produced by this company.

As for the crankshaft, it is worth understanding that in order to achieve maximum power effect, it should also be replaced. Of course, the part itself costs a lot, so most car enthusiasts who perform tuning on their own leave the old crankshaft.

But, nevertheless, if the motorist decides to go all the way, then you can install a crankshaft, which is offered by the Polish manufacturer DDT. It is worth understanding that it must first be sharpened before the first repair, since the main journals will not fit into the yokes.

Another modification is the replacement of the camshaft and valves. The inlet and outlet valves can be purchased from API, but the seats for them will have to be machined using standard ones. The camshaft can be installed new, natively produced, or a lightweight one from DDT.

Ignition installation

The next stage of improvement is the installation of contactless ignition. Today, it can be easily found in any automobile market at an affordable price. Thus, you will have to replace not only the lock, but also the spark plugs, as well as the ignition coil and high-voltage wires. In this case, the best and most budget-friendly cables are those from Tesla.

Coolant circulation system

The cooling system should also be replaced. At the same time, it changes completely. There are several companies that produce tuning kits for cooling systems for classic VAZ cars. These include such well-known manufacturers as Mastersport, Brembo, AWD, Intenzo and others.

The cooling system tuning kit consists of:

• High power water pump (in some cases can be found with a forced electric activation function).
• Thermostat.
• Set of silicone cooling system pipes.
• Aluminum radiator with increased area.
• Electric fan.
• Coolant system sensor with wiring.

If you install such a kit, the engine will be better cooled even at high speeds, which will protect the engine from overheating.

Carburetor

As a rule, to increase power, an additional carburetor is installed on the VAZ 2106. This is done in order to increase the amount of fuel in the cylinders, but it does not do without additional air injection.

Turbine

Since an additional carburetor was installed on the engine, it will be necessary to restore the balance of air and fuel. This is achieved by installing turbocharging. Of course, the easiest way to install a turbine is from a MTZ tractor, but a lot will have to be changed. Therefore, there are already monoturbines on sale that are designed specifically for installation on classic cars. The average cost of such a ready-made kit is about $500.

Clutch

If we are talking about increasing the power characteristics of the VAZ 2106 engine, then it is imperative to change the clutch kit. It includes the following elements:

• Release bearing.
• Clutch drive disc.
• Clutch driven disc or basket.

The optimal option for installation is considered to be a clutch kit made by Sachs, which fits perfectly into the mounting locations, and torque transmission is significantly improved.

Other

The latest modification can be considered an improvement in air supply to the cylinders. To do this, motorists install a “zero” resistance filter element on their cars instead of a standard air filter. Also, along with this modification, it is recommended to additionally modernize the carburetor damper, but not everyone does this.

In addition to upgrading the carburetor, you can improve the injection systems in another way - installing a monoinjector, but you will have to replace the cylinder head and mount an electronic engine control unit. This procedure is quite expensive, so owners of “sixes” opt for installing a two-carburetor system.

Tuning in the service

The issue of engine tuning has been relevant over the past few years. This point determines that many car services provide a similar service. Often, a car service center carries out chip tuning, but they can install a turbine, increase engine capacity, carry out cylinder head and many other works.

When ordering a service from a specialized company, you should consider:

1. The price of the work will be quite high. At the same time, you also need to add the cost of new parts. As a result, in many cases it is easier to install a new engine than to change the old one. 2. The quality of the work performed will be at the highest level. A rather important point is that the modernization will be carried out by experienced motorists and mechanics. Many aspects cannot be foreseen when doing work independently. 3. The work is usually completed in a shorter time, since the people who carry it out have extensive experience and devote all their free time to this matter.

The above points determine that the best results can be achieved if you seek help from a specialized center.