We increase the power of the VAZ-2112 16 valve engine with our own hands - tuning detected!

The VAZ 2112 model began production more than 15 years ago. The car was a fairly successful project in terms of design, since it was due to it that it clearly carried out all the commands given by the driver through the steering wheel. Since then, this car has not ceased to be improved, equipping it with the best components and devices.

The year 2004 became very important for domestic manufacturers, since during this period the car engine was replaced with a more powerful one (124 hp). Its volume also changed – it was now 1.6 liters. At the same time, the height of the crankshaft was changed: it increased by 2.3 mm, which made it possible to improve the running capabilities of the piston by 4 mm.

Features of the VAZ 21124 engine

In addition to the new engine, the car received a slightly different name - VAZ 21124.

Tuning VAZ 21124

What is characteristic is that during the start, the traction at the bottom became more noticeable in it, and the engine operation differs from previous versions in a special calmness (now there is no place for harshness in it).

Often, owners of sixteen-valve units are faced with a problem when the valves in the piston are bent. In the VAZ 21124, the possibility of such a problem is completely excluded: there are special recesses in the piston bottom, as well as sports shafts that control the rise of the piston.

DIY chip tuning

Chip tuning of the VAZ 21124, like other cars, involves flashing the factory engine with camshafts. In order not to harm your “iron horse,” it is preferable to entrust such improvement to professionals, that is, seek help from a specialized center. However, once you understand this procedure, you can tune the car yourself.

Connectors for tuning

The principle of doing chip tuning using Stolnikov 8.9/280 or Nuzhdinov 8.85/273 camshafts with your own hands is as follows: a direct-flow exhaust system (4-2-1 manifold), a receiver and a 54–56 mm damper are installed in the VAZ system. This helps to increase engine power. Replacing the standard piston with a lightweight one from the Lada Priora will also help increase engine efficiency. Thus, changes are made in the system, resulting in a reduction in fuel consumption and an increase in the power of the power unit.

If the power is still not satisfactory after the above manipulations, you can install a wide-phase camshaft and upgrade the cylinder head. In addition, those who like to drive at high speeds can add a compressor and four-throttle starting turbines to the car, which are necessary for stable engine operation and increased sensitivity of the gas pedal.

It works as follows: each cylinder of the engine gets one of the throttle valves, which eliminates resonant air vibrations and, as a result, stable operation of the engine from bottom to top. In this case, attention should be paid to the fact that in addition to such a throttle system, you will need:

• special collector;
• pipe;
• zero resistance filter;
• fuel pressure control;
• absolute pressure sensor;
• System firmware for a four-throttle engine.

After chip tuning of the VAZ 21124 is carried out, the engine power will increase to 180–200 hp.

Changing engine displacement

The most favorite tuner engine is 124

This method is one of the simplest and most convenient. Such tuning will significantly increase engine torque without changing your driving style. It can be increased by boring the cylinders or increasing the piston stroke.

• By increasing the cylinder capacity, you will immediately increase engine power . This is based on the fact that there is a reserve in the thickness of the cylinder walls and they can be bored using a special machine. Bored cylinders will burn the greatest amount of fuel in the same amount of time, thereby increasing the throttle response of the engine.
• increase the piston stroke by using a new crankshaft, which has a large eccentricity, and selecting appropriate pistons and connecting rods for it. As a rule, lightweight connecting rods in this case are installed, since weight in this case plays an important role. The new piston group allows to significantly increase efficiency and, accordingly, power. At the end of such tuning, it is advisable to install a lightweight flywheel in order to relieve the load on the crankshaft and clutch, which will certainly have a positive effect on the dynamics and acceleration of the car.

Boring cylinders on a machine.

Compression ratio

• The very concept of compression ratio implies the ratio of the combustion chamber to the total volume of the cylinders. This will simultaneously significantly increase efficiency, engine power and reduce fuel consumption.
• These indicators can be achieved by installing a new camshaft with completely different geometric parameters. Thus, the new element is able to increase the volume of the combustion chamber, while the engine volume remains unchanged. Such work is best carried out together with the installation of a turbine (see below - note). However, remember that this work is not cheap.
• You also need to know that when installing such a camshaft, the octane number of the gasoline being poured must be increased, as well as improving the engine oil being poured, which has the lowest friction coefficients. When carrying out such tuning, compression units can increase to 10 units.

Throttle valve

Many owners of VAZ two-wheelers resort to engine tuning by increasing the diameter of the throttle valve. Of course, to increase the volume of the air mixture, such tuning is advisable. In stores you can find dampers with a diameter from 52 to 56 mm. However, please note that by increasing the diameter of the damper, you will also have to change the pipes. Quite often, failures occur not because of problems with volume, but because the throttle valve is clogged, in which case it needs to be cleaned.

Dampers of different diameters.

• Characteristics of VAZ-2112 engines 16 valves: comparison of 124 and 21120

Inlet receiver

Thanks to the largest volume of the intake receiver, more air will flow in, which means it will work more smoothly. After this modification, the engine compliance even above 5 thousand revolutions will remain stable.

Engine characteristics 21124

Years of production – (2004 – today) Cylinder block material – cast iron Power system – injector Type – in-line Number of cylinders – 4 Valves per cylinder – 4 Piston stroke – 75.6mm Cylinder diameter – 82mm Compression ratio – 10.3 Engine displacement VAZ 21124 – 1599 cm3 Engine power 21124 – 89 hp. /5000 rpm Torque - 131 Nm / 3700 rpm Fuel - AI95 Fuel consumption - city 8.9 l. | track 6.4 l. | mixed 7.5 l/100 km Oil consumption - 50 g/1000 km Engine 21124 oil: 5W-30 5W-40 10W-40 15W40 How much oil is in the VAZ 21124 engine: 3.5 l. When replacing, pour 3.2 liters.

Engine malfunctions and repairs 21124

AvtoVAZ continues to develop 16 valve engines and in 2004 the VAZ 2112 engine was replaced with a 124 engine. It uses a Kalinovsky high block, it is 2.3 mm higher compared to the old block 2112, the piston stroke has increased from 71 mm to 75.6 mm, due to this the volume has become 1.6 liters. On the same block, behind the air filter, above the gearbox casing, there is a platform on which the VAZ engine number 21124 is stamped. By adapting the 124 engine to Euro-3 standards, its environmental performance has increased, low-end traction has appeared, the engine has become quieter and a little noisier than the twelfth . Engine 2110 124 1.6 l. injection in-line 4-cylinder with overhead camshafts, the gas distribution mechanism is belt driven. The service life of the 21124 motor, according to the manufacturer’s data, is 150 thousand km; in practice, the motors run about 200 and even 250 thousand km. This engine solves the problem of 16-valve engines - the VAZ 21124 engine does not bend the valve, for this purpose there are holes on the bottom of the piston and with standard shafts or sports ones with moderate lift, the owner has nothing to fear. Among the disadvantages, it is necessary to tighten the timing belt once every 15 thousand km. If the VAZ 21124 engine is troublesome, there is a knocking or noise, do not be afraid, this is a common situation for AvtoVAZ, read the description of the problems HERE, there is also an answer to the exciting question why the VAZ 21124 engine is overheating According to general reviews, the 124 engine is considered one of the best VAZ engines and is recommended for purchase, especially if serious modifications are planned. In 2007, a new engine was released, replacing the 124th engine - the well-known Priora engine. In addition, based on the 124 engine, the Super-Auto company produced a 1.8 liter VAZ 21128 engine, something is also said about it)

Gasoline supply

I think there is no need to explain the importance of maintaining a stable, constant gasoline pressure in the injector rail:

• During normal city driving, the standard fuel regulator is sufficient at high speeds, but a situation arises that with the injectors constantly open, it leads to a general decrease in pressure in the rail
• As a result, the fuel supply decreases, poor atomization results, and engine malfunction
• Therefore, boosting the engine requires increasing the pressure by 0.5 - 1 atmosphere, it all depends on the degree of boosting the engine
• Naturally, it will be necessary to adjust the injection program to ensure the correct mixture composition
• Today, in the latest (so-called “transitional”) models, as well as new 1.6-liter engines, a drainless system is used; the RTD is located in the tank with the fuel pump assembly and creates a higher pressure of 3.8 Atmospheres

Injectors

A natural process when, when boosting the engine, a situation often arises that the performance (amount of fuel supplied) is simply not enough:

• In this case, you will need to replace the nozzles, install more efficient ones, or install a second row of nozzles
• Option two is quite difficult and time-consuming, and it is not always possible to implement it even in a standard block.
• Therefore, it is easier to install more efficient injectors, having a productivity from +15% to +50% (and it is undesirable to use publicly available injectors used on GAZ cars; apart from high productivity, they have no more advantages)
• The disadvantages are the speed and non-linear characteristic at the beginning of its range, where a regular car has XX
• In addition, as a rule, 4-2-1 “spiders” are installed on souped-up cars, which work well in a wide speed range
• Spiders of the 4-1 system did not take root in civilian tuning due to the narrow range of their effective operation
• And the principle of operation of the exhaust is based on the vacuum created in front of the closed exhaust valve, this contributes to improved purging of the cylinder

Add a commentAdd a commentWe recommend readingVAZ 2109: do-it-yourself engine tuning

The VAZ 21124 engine with 16 valves appeared in 2004, by reconstructing and improving the 2112 engine and was mounted on cars produced by the AVTOVAZ concern, models 2111, 2112, 2111.

The updated internal combustion engine received an increased displacement - 1.6 liters. The increased engine volume of the VAZ 21124 was achieved by increasing the distance between the axes of the main and connecting rod journals of the crankshaft by 7.3 mm (it was 30.5 mm, now it is 37.8 mm). Moreover, the increase in volume occurred without changing the diameter of the cylinders; it remained the same - 82 mm.

Thus, the designers' intention was achieved - bringing the environmental characteristics to the European level. Let's consider its description in more detail.

Engine tuning 21124

There is no point in considering chip tuning of a 124 engine, it will not make any noticeable changes on a standard car, the firmware is needed for more thorough and correct tuning, after the engine has been modified, we will start with it. The simplest and most standard way to increase the power of the 21124 engine is to replace the camshafts with Stolnikov 8.9 280 or Nuzhdin 8.85, install a 4-2-1 direct-flow exhaust, a receiver and a 54-56 mm damper, this will give us a total of more than 120 hp, and for more efficient operation of the motor, we replace the piston with a lightweight Prior one. This will further increase power and reduce fuel consumption. If these numbers are not enough, it is recommended to modify the cylinder head and install wide-phase shafts, which will give an output of 150+ hp.

Compressor for VAZ 21124 16V

As an alternative, and also to obtain similar power over the entire range, you need to install a compressor. The most common compressor for VAZ is the St. Petersburg kit based on the PC-23, but the Internet is full of videos on compressors both on the 8 valve and on the shesnar, in one of the most famous videos, the owner of the motor on the compressor clearly explains all the nuances of installation and what is required for the successful implementation of the project using the example of an eight-valve engine. This compressor can also be installed on a 16 valve engine.

Attention MAT (18+)

It is possible to increase power without using a turbine up to 200+ hp, using a 4-throttle intake, but the most optimal options suitable for urban use are the methods described above.

Installation of a zero resistance filter

A zero-resistance filter, or simply “zero filter,” is mounted instead of the air filter and its housing. It is designed to reduce the resistance of incoming air into the system. Large filter throughput allows you to increase engine power by a couple of percent. Remember that the correct choice of filter and impregnation for it is the key to proper engine operation.

This tuning is one of the most affordable.

Channels and valves

• The exhaust and inlet channels are supposed to be ground , increasing the diameter at the inlet, and not changing the diameter at the outlet. We remove all irregularities and various joints that can in any way slow down the flow.
• Valves - it is better to use special lightweight or increased diameter ones. It is also expected to use the stiffest or sportiest springs, as well as lightweight valve plates.

The difference between the lightweight valve (left) and the regular one.

Specifications

The power unit was installed on VAZ cars: 21104, 21114, 21123, 21124 and 211440-24 (“Super-auto”).

Fuel supply

Conventional injectors are not enough to operate the engine at high speeds. Since they are constantly in operation, the working pressure in the ramp is simply not enough. In order to increase engine power, you should install the most efficient nozzles, which can increase the volume of sprayed liquid several times. Such changes work most effectively with the 4-2-1 release technology.

Turbocharging

• The most effective, widespread and most expensive type of tuning is the installation of a turbine. After all, it is known that in order to increase engine power, it is necessary to supply the largest amount of a mixture of air and fuel into the cylinders.
• However, to increase the volume of fuel, a mandatory increase in the amount of air will be required, which is what the turbine does. The exhaust gases enter the turbine impeller, then it rotates and drives the compressor, which in turn pumps air into the cylinders.
• Since the air is pumped under pressure, its quantity increases significantly, which leads to an increase in fuel combustion, which results in an increase in power.
• Remember that installing a turbine will lead to a mandatory upgrade of the cooling system (diagram of a standard cooling system here).

The most expensive method of tuning a VAZ-2112.

• We increase the power of the 8 valve VAZ-2114 engine with our own hands - myths and reality

Description

The VAZ 21124 engine is part of the line of 16-valve power units produced by AvtoVAZ JSC. It is an in-line 4-cylinder power unit with overhead camshafts and electronic fuel injection (injector).

The gas distribution mechanism is driven by a belt, which must be changed every 45,000 km. At the same time, the manufacturer recommends inspecting it for damage and eliminating sagging every 15 thousand km of the distance traveled.

The VAZ 21124 engine is assembled on the basis of a tall (197.1 mm) cylinder block modification 11193-1002011, the use of which made it possible to increase the piston stroke to 75.6 mm. This led to an increase in the useful volume of the cylinders to 1.6 liters, torque and power of the power unit.

The developers of the 21124 motor managed to eliminate a significant drawback inherent in many motors. If the drive belt breaks, the power unit does not bend the valve. This was achieved by equipping the pistons with special holes that prevent contact between the piston and the valve in an emergency.

The use of hydraulic pushers made it possible to eliminate the need to adjust valve mechanism clearances. True, at the same time, the sensitivity of the engine to the quality of engine oil has increased.

Design features

The main part of the engine, the cylinder block (catalog number 11193-1002011), also differs in size from its predecessor. It is factory painted blue. Its height, the distance from the crankshaft axis to the upper plane, became 197.1 mm, versus 194.8 mm on the 2112 model.

The dimensions of the holes for the block head mounting bolts have changed; they are from the hoist with M10×1.25 threads. The main bearing supports on the 124th engine, from the second to the fifth, are equipped with channels designed to supply oil that cools the piston during operation.

The crankshaft installed is the same as on models 21126 and 11194, with the marking 11183 cast on the sixth counterweight. Due to the crank radius of 37.8 mm, a piston stroke of 75.6 mm was provided. A toothed pulley is installed on the shaft for timing belt drive. The belt is 25.4 mm wide and has 136 teeth, parabolic in shape. Belt service life is 45,000 km.

The pulley is designed to drive additional units using a V-belt. Three types of belts are used, differing in length, depending on the equipment:

• If the drive is only for the generator, the belt length is 742 mm.
• With power steering - 1115 mm.
• With power steering and air conditioning 1125 mm.

The pulley is designed in such a way that it acts as a damper, reducing the torque loads acting on the shaft. Another function is to determine the position of the crankshaft using a sensor and a gear mounted in the damper.

The improvement affected the pistons. Their bottoms are made with valve recesses 5.53 mm deep to avoid the valves hitting the piston bottom when the timing belt breaks.

On previous VAZ 16v models without recesses or with recesses of shallower depth, in such a situation there was a risk of bending the valves, which led to expensive repairs. So, concerns and frequently arising questions about whether the valves bend on this engine have been removed.

Maintenance

Maintenance of VAZ 21124 engines generally comes down to periodic replacement of consumables - engine oil and coolant.

The main requirement that must be fulfilled is to inspect the engine for leaks. As a rule, replacement of technical fluids is carried out after eliminating detected leaks within the time limits specified in the maintenance regulations:

• engine oil - after 15,000 km;
• The coolant is changed if it has radically changed its original color. Typically, the coolant acquires a rust color after 25-40 thousand km. Before replacing, it is advisable to flush the cooling system.

Results

As you can see for yourself, there is nothing complicated about tuning the engine on a VAZ-2112 yourself. However, remember that independent modifications that somehow increase its power have the greatest impact on its gradual wear. Therefore, on a modernized engine, much more attention should be paid to the quality of maintenance, engine oil and fuel used.

–> VAZ Masters / Tuning / Engine care

Easy tuning of the VAZ 2112 engine

Malfunctions

VAZ 21124 engines have the same set of characteristic disadvantages characteristic of all VAZ engines. The most common:

Air leaks through the crankcase ventilation hoses and the hose connecting the intake manifold and the vacuum brake booster.

If this does not help, check the serviceability of the fuel injection system.