SJRacing - tuning components for your car

Specifications

Before we begin to describe the process of refining and increasing the power of the VAZ 2109 carburetor engine, it is worth understanding what power units were installed on the vehicle, and also consider the main technical characteristics.

During the production process, the “nine” was equipped with three options for carburetor engines:

21081 (1.1 8V)

2108 (1.3 8V)

21083 (1.5 8V)

Engine VAZ 2108 | 2108 engine repair and tuning

Characteristics of the VAZ 2108 engine

Years of production – (1984 – 2004) Cylinder block material – cast iron Power system – carburetor Type – in-line Number of cylinders – 4 Valves per cylinder – 2 Piston stroke – 71 mm Cylinder diameter – 76 mm Compression ratio – 9.9 Engine displacement 2108 – 1295 cm cube Engine power 2108 – 64 hp. /5600 rpm Torque – 95 Nm/3400 rpm

Fuel – AI93 Fuel consumption – city 8.6l. | track 7.1 l. | mixed 8.2 l/100 km Oil consumption - 50 g/1000 km Overall dimensions of the VAZ 2108 engine (LxWxH), mm - 540x422x561 Weight of the VAZ 2108 engine - 127 kg Oil in the VAZ 2108 engine: 5W-30 5W-40 10W-40 15W40 How much engine oil 2108 1.3: 3.5 l. When replacing, pour 3.2 liters.

Resource: 1. According to the plant – 120 thousand km 2. In practice – up to 200 thousand km

TUNING Potential – 80-90 hp. Without loss of resource - n.d.

The engine was installed on: VAZ 2108 VAZ 2109 VAZ 21099

VAZ 2108 engine malfunctions and repairs.

The 1.3 engine is basic for the eighth model, developed from scratch, the design of the VAZ 2108 engine has nothing in common with the 21011 1.3 liter engine. On the basis of this engine, engines for the Samara family with a volume of 1.1 liters were created. and 1.5 l. The engine is a carburetor in-line 4-cylinder with an overhead camshaft, timing belt 2108 has a belt drive. The service life of the VAZ 2108 engine, with careful and quiet operation, correct and constant maintenance, exceeds the 120 thousand km established by the factory and reaches 180-200 thousand km.

Let's move on to the disadvantages of the engine: there is wear and tear on the cooling system parts, you will often have to change the oil filter and adjust the valves, there is also the problem of oil leakage through the valve cover seal, the fuel pump and the distributor sensor. Unreliability of Solex-type carburetors, especially EPHH. If the timing belt breaks on 2108 1.3, the valve bends. In addition, due to the age of cars, problems with ignition are not uncommon, and the fact that the carburetor in the VAZ 2108 is not working indicates exactly this. There are other problems associated with the same ignition, one of the most common is detonation of the VAZ 2108 engine, which occurs when the ignition is too early. But the cause may also be low-octane, low-quality gasoline. When detonation occurs, black smoke comes out of the exhaust pipe, and the engine also loses power.

Tuning carburetor engine VAZ 2108 1.3 l.

Modification of this unit is not as common as tuning 21083 1.5 due to the lack of meaning; all other things being equal, the 083 engine will always be ahead, it initially has greater volume, power, torque and huge potential for modifications at the same or lower costs. Occasionally, boring for a 79 mm piston is practiced, resulting in a volume of 1.4 liters, but the walls will be very thin, overheating is possible, and accordingly the service life is sharply reduced. The simplest and most inexpensive tuning of a 2108 1.3 engine is to buy a 21083 1.5 l engine or block 083 and finish it to the desired level.

Boring the VAZ 2108 engine and how to boost it correctly

The option of obtaining a volume of 1.4 liters is practiced. installation of Kalinovsky pistons 76.5 and Kalinovsky crankshaft 75.6, connecting rods from the same with shrinkage of 2.3 mm. Cylinder head from 083 or 16 valves from Kalina. On the shafts, intake and exhaust the car will go faster than the new Priora.

Injector for VAZ 2108 engine

On a car with a 1.3 engine, you can install an injector from a 1.5 liter 21083, everything will work on standard firmware.

Rotary engine VAZ 2108

Building a good sports engine for a VAZ 2108 1.3 is a complex and resource-intensive thing; installing a powerful rotary engine right away is another matter. The eight can be equipped with an RPD-415 engine with a power of 140 hp. Disadvantages of a rotary engine: price (about $3000), short service life (even lower during active driving), fuel and oil consumption is much higher than a standard internal combustion engine. Advantages of RPD: high dynamic performance, acceleration to 100 in less than 9 seconds, speed of more than 180 km/h.

ENGINE RATING: 3

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Tuning process

Do-it-yourself VAZ 2109 engine tuning begins with removing the engine from the car. So, you will have to turn off the power supply, ignition system and other systems. So, let's look at all the stages of modifying the engine yourself. It is impossible to carry out complete tuning with your own hands, since you will still have to contact a car service at some stages.

Removing the motor

To remove the engine you will have to go through a certain process of disconnecting and dismantling the auxiliary systems. So, let's get started with the process:

1. Remove the battery and holding shelf.
2. We remove the air filter and carburetor.
3. We remove the ignition elements that are located in the engine compartment.
4. Drain the coolant and engine oil.
5. We unscrew the gearbox from the internal combustion engine.
6. We dismantle the radiator to make it easier to remove the engine.
7. We take out the engine CV joint.
8. Unscrew the engine mounts.
9. We remove the hood and dismantle the engine.

The described process is not complete, but only the basic actions that need to be done.

Disassembling the power unit

Disassembling the power unit is done in a few hours. So, first you need to dismantle the cylinder head cover and the oil pan. It is best to carry out this operation on a special stand.

After this, we begin to remove the main components. Unscrew the bolts securing the cylinder head and cylinder block. Then, we set the head aside and work directly with the cylinder block. So, let's look at what you have to remove:

1. Unscrew the yoke and remove the crankshaft. First we dismantle the pulley.
2. We dismantle the water and oil pump.
3. We take out the piston group. We dismantle the connecting rods. If there is, you need to remove the sleeves.
4. Now, the block is ready for further manipulations.
5. The last step is washing the parts and the block.

Once the block is disassembled, you can proceed to disassembling the cylinder head.

1. Remove the camshaft cover.
2. We remove the camshaft.
3. We dry out the valves.
4. Remove the springs and seals.
5. We take out the valves.
6. We knock out the saddle and guide bushings from the head.
7. We wash the parts and the base of the head.

Determining Rework Priorities

To increase the power of the VAZ 2109 carburetor engine, you will need to purchase a piston group, valves, camshaft, connecting rods and crankshaft. All these parts must be lightweight and manufactured by tuning manufacturers.

Thus, the piston group, valves and seats are suitable for ATI. It is best to install bronze guide bushings made by the American manufacturer K-line. The crankshaft and camshaft are purchased from the German company TDR.

Working with the cylinder block

To begin with, the cylinder block must be bored for new pistons, respectively, with a size of 82 mm. Then, the crankshaft and new bearings, which come with the main part, are installed.

To make everything work like a clock, you need to install a lightweight tuning clutch manufactured by Sachs. After the clutch is attached to the shaft, balancing must be done. It is advisable to carry out the operation on a special stand.

We assemble the piston assembly, namely, we attach the pistons to the connecting rods. Then, you can begin the so-called “dressing” process. This refers to the attachment of connecting rods with pistons to the crankshaft. We install the crankshaft oil seals and bearings. We install the yoke and you can fix the pallet. Then, the remaining auxiliary components, such as the pulley, water pump and roller, are assembled.

Head tuning

Tuning a cylinder head is actually assembling new parts onto old seats. So, a disassembled cylinder head is assembled from an old body and new tuning elements. There is nothing complicated in this process.

Assembly of the unit

After the main systems and components have been assembled, you can proceed directly to the process of assembling the engine together. So, in reverse order, the cylinder head, valve cover, pulleys, and timing belt are attached to the cylinder block.

After assembly, it is recommended to run the engine cold, but since not everyone has a running stand, most motorists carry out this operation hot, directly on the car.

Refinement of auxiliary systems

After the main components of the power unit have been assembled, you can begin installing auxiliary systems. So, first of all, we install the fuel injection system. An old Solex carburetor should not be installed, since it will not supply the required amount of fuel to the combustion chambers. Therefore, it is necessary to find an improved Solex Mega-2 carburetor or the Czech version - IKOV.

It is worth modifying the ignition system. Instead of standard spark plugs, it is worth installing Brisk spark plugs marked A2. Also, standard high-voltage wires are replaced with a tuning version produced by Tesla.

Do not forget about the cooling system, since an increased number of crankshaft revolutions will speed up all processes, and accordingly increased heat emissions. Therefore, a kit cooling system is installed on the VAZ 2109, which includes: silicone pipes, a sports pump and a two-chamber thermostat. It is also recommended to install a sports radiator made of aluminum. This will lighten the weight of the car by several kilograms.

The final modification is the installation of a “zero” resistance air filter. Installation of this unit is quite simple; it is “aired” onto the standard fastenings of the old case. The air intake is oriented so that there is a direct air supply.

Also, in addition to standard modifications, an air supercharger can be installed on the engine. Of course, such a modification wears out the engine elements faster, so it is recommended to install a “snail”.

After all modifications have been made, the engine is installed on the vehicle, and running-in and adjustments are carried out.

Tuning the VAZ 2108 engine - increasing carburetor power + Video

The engines of the VAZ 2108 model are neither perfect nor reliable, so the owners of these cars try to improve various engine performance as much as possible. We will talk about effective tuning options in this article.

1 Technical changes in the VAZ 2108 engine system

First of all, the owners of the VAZ 2108 car are trying to increase the engine capacity, which will increase its power. To do this, it is necessary to increase the piston stroke by 3-3.8 millimeters. As a rule, this is achieved by replacing the crankshaft and pistons, however, depending on the specific engine modification, you can proceed in several ways:

• install forged pistons of increased size and shape,
• mechanically modify standard pistons,
• install pistons from model 21213 and replace the system connecting rods.

For a standard production VAZ 2108 engine with a volume of 1.6 liters, it is best to use a crankshaft measuring 75.6 millimeters; on 1.5 liter engines, a crankshaft measuring 71 millimeters is best.

Standard serial engine VAZ 2108

The diameter of the standard pipe in the injection-type VAZ 2108 engine system is 46 millimeters. To improve the supply of the fuel mixture to the cylinders during tuning, it is necessary to increase the throttle diameter by 5-8 millimeters. If you increase it to a larger size, there is a risk of damaging the throttle pipe. In addition, when installing a throttle valve with a larger diameter, you must ensure that there is a thermal gap between the pipe body and the valve. As the diameter increases, more air will enter the cylinders even when the unit is opened slightly.

Tuning a VAZ 2108 carburetor with your own hands comes down to grinding, sharpening and smoothing the corners in the system.

DIY carburetor tuning

All this will improve air circulation and carburetor performance. First of all, the carburetor must be disassembled and divided into two halves, which can be washed with a special solution. Next, using a file, the screws of the air damper axis are ground down, which create unnecessary resistance to air flows; in addition, the air damper itself can be sharpened. After this, you can bore the throttle valves in diameter and replace the “cam” drive from the pump booster with a sports version.

2 Replacement of the air filter and modernization of the VAZ 2108 muffler

Air is an important component when boosting an injection engine, so a high-quality air filter is necessary. Unfortunately, domestically produced filters are not of high quality, so it is recommended to replace the standard filter with a higher quality model. Filters of the brands KN, JR, etc. are excellent for “eights”. Their cost varies between 50-60 USD. e. These are sports filters of zero resistance with a good service life.

Installing a quality air filter

The process of improving the supply and circulation of the fuel-air mixture and tuning the VAZ 2108 engine also involves modifying the intake channels and engine valves. It is recommended to use larger volume or lighter valves. For sports tuning, it is also necessary to replace the valve springs, for example, from Shrick, complete with titanium valve “plates”. If standard valves are used, they must be properly sanded and “ground in” in the workshop. As for the inlet channels, they can be carefully sanded to remove irregularities, joints, etc. At the inlet, the diameter of the channels should also be increased.

Replacing valve springs

Another detail that is worth paying attention to when tuning the VAZ 2108 engine is the exhaust system. The easiest way to install a new sports muffler on the VAZ 2108 is PowerFull, Asso, Remus, Nex, etc. However, installing a muffler without redoing the entire exhaust system will only provide a loud sound and no practical benefit. Therefore, most often they install a forward flow according to the “spider” scheme. The “spider” is complemented by pipes of increased diameter (at least 60 millimeters if the engine is 1.6-liter).

3 A few words about chip tuning VAZ 2108

To get the maximum effect from tuning, you need to correctly change almost all injection calibrations and adjust other parameters for certain changes in the system, driving style, etc. The firmware must be configured for the most optimal supply of the fuel mixture and advanced ignition angles in any engine operating modes .

Chip tuning to change injection calibration

VAZ engines of the 2108-09 series have a January 5 ECU, which is best flashed using the J5 Online Tuner engineering unit or a later version of J7. This block allows you to configure parameters in real time. The most important tuning step is to ensure the optimal composition of the fuel-air mixture throughout the entire engine speed range. Flashing can be done either with your own hands, using universal loaders such as Combiloader, etc., or in specialized tuning studios.

Lightening the knots is the key to success

It will be necessary to lighten the following engine elements as much as possible: – pistons; - crankshaft; – connecting rods; – flywheel.

On sale you can find already lightweight parts produced specifically for engine tuning. In addition, increasing the engine volume will add several horsepower. But it is extremely undesirable to use maximum cylinder bore. It’s just that in case of the next major overhaul you will have to install new liners. And this is quite a large expenditure of money.

Replacing the carburetor with an injector

If you have a carburetor fuel injection system, then it is best to replace it with an injection one. As a result, you will get a lot of advantages, against which the disadvantages are not very noticeable. The advantages include:

– the ability to flash the ECU for the desired operating mode; - fuel economy; – possibility of installing turbocharging; – reduction of emissions of harmful substances (although few people care about this).

Turbocharging works best with injection engines. Carburetors have a trait - they are sensitive to the amount of air. It is also possible to install fourth-generation gas equipment on the car. You should not put the fifth one, as it is expensive to maintain and repair, but in terms of capabilities it is on par with the fourth. The power loss will be only 3%, but the savings on fuel will be noticeable.

Turbine installation

This is something that can increase engine power several times. A high-quality turbine from a reliable manufacturer will improve engine performance many times over. It is only desirable that the engine be in perfect condition, otherwise it will not be possible to get the most out of it. The turbine is driven by exhaust gases, so it only works when the engine is running. You could even say that the motor works on its own.

From the impeller in the exhaust manifold, the movement is transmitted along the axis to the compressor, made using gears. This type of compressor is not afraid of high temperatures and is quite durable. As a result, air under high pressure is pumped into the power system, which increases engine power.

There are many nuances in the operation of a turbine. For example, at certain engine speeds a dip occurs. In this case, the operation of the turbocharger is not felt. By overpaying a little, you can purchase a turbine in which two compressors are installed, in which failure occurs at different engine speeds. As a result, they compensate each other, and the driver does not experience discomfort from this behavior of the motor.

Source: www.kakprosto.ru

Engine power on the VAZ 2109 and increasing it yourself

Engine VAZ 2109

Most of the “nines”, which a certain part of motorists drive today, are equipped with a carburetor engine. In this case, many people are not satisfied with the engine power of the VAZ 2109 and some are trying to increase it. The car is taken to a service station, where various methods of increasing power are carried out. In this article we will find out what you can do with your own hands if the engine of a VAZ 2109 does not develop full power.

Some features of engine tuning

In the process of improving the performance of the VAZ 2109 engine, the following actions can help:

• Weakening the friction force in a chain consisting of a ring, piston and cylinder.
• Reducing the weight of some parts, such as connecting rods, pistons, and so on.
• Reducing the thickness of the piston rings, as well as reducing their number.

Injection engine tuning

If everything is more or less clear with the modernization of a carburetor engine, then an injection engine will require several different tuning methods. In this case, no mechanical intervention is needed, because in order to change the technical characteristics, it is enough to adjust the ECU settings.

Engine tuning for VAZ 2109

Modernization of an injection engine is also called chip tuning. Here are the main advantages of the so-called chip engine:

• The manufacturer sets average values ​​for the engine and other important vehicle parameters. This is done in order to comply with the general rules and requirements of car markets around the world. Cars have a certain hidden reserve that can be revealed thanks to chip tuning.
• Engine power can be increased without using any mechanical operations. At the same time, such parameters as the maximum speed of the car, its dynamic characteristics, and so on change.
• Chip tuning allows you to change fuel consumption, increase engine speed, and adjust the ignition just by changing the settings.

How is chip tuning carried out?

• The ECU is removed from the car.
• From there, the memory chip is removed, which has saved all the set parameters.
• Information is read from the chip using a programmer.
• Next, the necessary changes are made to the chip and new values ​​are recorded.

Note. Often you can change the values ​​in the chip without removing it by connecting the ECU to a special plug.

Some argue that after increasing the power of an injection engine, fuel consumption increases sharply, but this is an erroneous opinion, because this is observed for a short period of time, and then everything returns to normal. The service life of the engine does not decrease after chip tuning. Above, general instructions were given regarding tuning the VAZ 2109 engine. This information concerns modifying the engine settings with your own hands, without the participation of specialists, which makes it possible to save a lot of money. The fact is that the price for any professional modification of the technical parameters of a car at service centers is very high. Why pay that kind of money if, together with photos and videos, you can do everything yourself.

Ways to increase engine power on a VAZ 2109

VAZ 2109 increase engine power

There are several known ways to increase engine power today. Below are the most popular ones.

Carburetor

If the VAZ 2109 with an injection engine has no problems with power, then the same cannot be said about the carburetor version. As you know, the VAZ 2109 car is equipped with a DAAZ 2108 carburetor, assembled at the Dimitrovgrad plant. The manufacturers of these same carburetors certainly don’t grab stars from the sky, and the products that come out of their factories, frankly speaking, are different. The fact is that some carburetors can last more than 7-8 years without problems, while others cannot last even 3 years. In addition, as mentioned above, engine power depends on the carburetor. If bad gasoline or dirt gets into a regular carburetor, or the driving style of a novice driver does not meet the standards, the carburetor (see Repairing a VAZ 2109 carburetor at home) prevents the engine from functioning normally. In this case, the power drops sharply.

Note. The reason for the ineffective operation of the carburetor can also be non-original jets. Increasing engine power by modifying the carburetor

It is worth noting that replacing a standard VAZ 2109 carburetor with an imported one will not make any significant difference in terms of increasing engine power. Only revision will help.

Note. A comparative test of the Italian Weber carburetor, which is suitable for the VAZ 2109 and DAAZ, did not give any difference. In addition, the imported carburetor “gobbled up” more fuel during operation than the domestic one.

On the other hand, some fans installed a standard Niva carburetor and the difference in power was felt. And this is not surprising, because the Nivov carburetor has more calibration data. Tuning the standard carburetor of a VAZ 2109, if done correctly, will give a noticeable increase in the dynamics of the car and significantly increase engine power. Let's get started:

• We disassemble the standard DAAZ and get to its second camera.
• We remove the spring, which is located in the vacuum drive of the throttle valve.

Note. Removing this same spring will help, with a slight increase in fuel consumption, to guarantee an increase in the dynamic characteristics of the car. Simple, cheap, but cheerful.

• Another method involves modifying the same vacuum drive. A homemade wire ring is inserted under the nut that secures the damper drive levers in the second chamber. It turns out to be a kind of protrusion between the wire and the lever. Tighten the nut.

Note. This modernization gives an increase in dynamics with a slight increase in fuel consumption.

VAZ 2109 increase engine power

• We change the diffuser of the primary carburetor chamber. If the standard diffuser is marked with a value of “3.5”, feel free to set it to “4.5” and enjoy the increase in power, albeit for the sake of economical fuel consumption.
• We change the pump nozzle, which has a value of “30”. We dismantle it and install a sprayer with a value of “40”.
• Some craftsmen manage to install an additional carburetor on the car. Having managed to successfully synchronize the opening of the dampers, an increase in engine power with two carburetors is guaranteed.

Zero resistance air filter

The so-called “nulevik” is capable of helping to increase the dynamics of the VAZ 2109 car. It can be easily purchased on the auto parts market at a very affordable price and installed:

• We dismantle the housing of the old filter and air duct.
• Remove the crankcase gas exhaust pipes.
• We install a new air filter and get an increase in power by 3-5%.

Muffler

Some advise not to bother with the carburetor and filter, but to immediately start installing a direct-flow muffler. So:

• We remove the resonator and the old muffler.
• We dismantle the exhaust manifold, but leave the “pants”.
• We install a new muffler (see Replacing a muffler on a VAZ is done with high quality), selecting the diameter of the pipe according to your preferences.

Note. Installing a direct-flow muffler, although it gives a noticeable increase, has a drawback. The fact is that when accelerating and releasing gas, the noise increases significantly, which may not be liked by others and traffic police inspectors.

Increasing the compression ratio

• The cylinder head is dismantled.
• The cylinder head is milled on a special machine (changes should not exceed 0.5-1 mm).
• Having thus reduced the volume of the combustion chamber, we increase the compression ratio.

Note. The increase in power in this case is 12-15% more, which is very good. Do not forget that after this modernization you will no longer have to fill the tank with ordinary fuel, but with pure gasoline with an octane rating of AI95-98.

Sports camshaft

Installing a sports camshaft will ensure maximum supply of the air-fuel mixture to the cylinders, and this will increase the valve lift height. During this modernization, we do not forget to install also modified cams, which are distinguished by their exceptionally smooth profile. Such tuning cams will ensure reliable operation of the timing belt.

Note. A distinctive feature of the sports camshaft is that the detonation limit is significantly pushed back, which is clearly visible at low crankshaft speeds. Types of sports camshafts

Today there are several types of sports camshafts:

• Low torque camshaft designed for city driving.
• Universal camshaft designed for driving in city and highway conditions.
• Overhead camshaft designed for highway driving only.

Transmission

Engine power VAZ 2109

If the methods described above gave only percentage indicators of increasing engine power, then improving the gearbox affects the dynamic characteristics, which is most important. An engine, even with the most powerful potential, may not show all its strength if it is not strictly combined with external conditions. The principle of modifying the gearbox is that you need to allow the engine to work as long as possible in the so-called “right” zone of the tachometer scale. This can be achieved by modifying the gear ratios so that they are located closer to each other:

• In this case, if the speeds are switched “up”, the revolutions will not drop as much as before, and the engine will not lose vigor and will show brisk acceleration.
• When shifting gears “down,” even at a relatively high speed, you can safely achieve more intense acceleration, because you no longer risk jumping into the red zone of the tachometer.

Note. VAZ models are the second gear synchronizer, which is entrusted with the mission of equalizing the angular speeds of the primary and secondary shafts. The driver of the car, in order to ensure some reserve of traction after switching to 2nd gear, must crank the engine thoroughly in advance, while still in 1st gear, listening to the “roar” of the engine.

VAZ 2109 engine power

A typical transmission upgrade is carried out as follows:

• All original shafts and gears are manufactured.
• They are installed in the gearbox instead of the old ones.
• A short-stroke rocker is installed.
• The clutch basket and driven disc are replaced.

Thus, by tuning the transmission, you can achieve changes. The engine will constantly be in good shape and after “twisting” it at initial speeds, it will be possible to accelerate so that the 4th, 5th and even 6th speeds will become appropriate (if there were one on the VAZ 2109). The instructions and tips given above are a real and practical way to upgrade your engine yourself. During the work process, it is recommended to use visual aids: photos and video materials. As you know, the price of engine tuning at a service station is quite high. It turns out that you can save a lot of money on independent modernization.

Source: masteravaza.ru

How to increase the power of a VAZ 2109 engine (carburetor) with your own hands

The vast majority of Nines are powered by carburetor engines. Many actively praise the injectors, but, nevertheless, this did not affect the total number of carburetor versions.

The VAZ 2109 car has a DAAZ 2108-1107010 carburetor. Dimitrovgrad residents do not grab stars from the sky, and the carburetors coming out of their assembly line are frankly different. One can serve five to ten years without complaints, while another, for no apparent reason, can suddenly refuse to work. True, the problem is not always a manufacturing defect.

Often such difficulties arise from dirt or bad gasoline. Or from a not very smart driver. There may be incorrect “non-original” jets, which also leads to problems.

How to increase the engine power of a VAZ 2109 carburetor?

Some VAZ owners believe that an imported carburetor can significantly affect the increase in power of the VAZ 2109 engine. But comparative tests of the domestic DAAZ and the Italian Weber showed that there is no huge gap at all. In addition, the Weber consumes more fuel and has higher CO emissions at higher speeds.

The maximum speed is also higher with “our” Solex carburetor. If up to 80 km/h there is almost no difference, then above a hundred Weber immediately begins to lose ground. And his single-cameraness is to blame.

To change the power, the VAZ 2109 carburetor is tuned.

Let's consider the options (in this case for Solex):

• You can start modifying the accelerator pump.
• Replace the standard carburetor with another one that has more calibration data. Suitable, for example, from Niva.
• Take jets and tubes with a larger diameter cross section. But the main thing here is not to overdo it. Otherwise, the correct formation of the mixture will be disrupted and the engine will not start at all.

Recommended article: 2nd generation Ford Focus on the secondary market

Improve the mixture formation process by refining diffusers, chambers and throttle valves. In general, tuning a VAZ 2109 carburetor with your own hands is a very real task.

Alex S January 5th, 2014

Published in: Useful tips and car devices

Tags: Advice for motorists

auto-all.com

Modification Basics

The goal of any changes is to increase power and improve dynamic performance. The tuning unit becomes more durable. The concept of high-quality modernization includes the installation of updated elements:

• cylinder head;
• sports receiver;
• intercooler or turbine;
• camshaft;
• piston group.

In the process of working on the cylinder head, the shape and diameter of the intake valves and combustion chamber change. Often, the VAZ-2109 is equipped with spare parts from other cars, for example, an additional carburetor and manifold, which are taken from the Oka. Such a modification is not possible if your VAZ-2109 has an injection model of the power plant.

The carburetor VAZ-2109 models have only one advantage - the power unit is capable of running on low-octane gasoline. It is a little easier to repair than the injector. You should not radically change the power unit if you have a carburetor type - modify it rather than install a new injector. Such a change is very costly in terms of finances and does not justify itself. It is better to use other methods of modernization.

Methods for tuning the power unit

There are many ways to improve engine performance. Before work, keep in mind that in case of an error you will have to completely change the unit. Each method of changing motor characteristics has its own advantages and disadvantages. Here are a few relatively safe tuning methods:

1. Installing a zero resistance filter. Craftsmen often call this component “zero”. If you choose the right filter, the dynamic performance and motor power will increase by 5%. If you equip your car with a zero drive, then you will have to carefully monitor it and clean it in a timely manner. Otherwise, installing the element will be pointless and dangerous. A dirty filter poses a risk of engine damage. Focus on a price of 5 to 6 thousand rubles per filter. Instances that cost less will not work normally.
2. Together with injection power units, it is often recommended to use direct-flow mufflers. This part should only be used in the gas exhaust system if you have carried out a thorough modernization of the engine. Another option when such a muffler would be appropriate: if the car has a turbo air injection system (additional compressor). The straight-through muffler will only affect power in conjunction with other upgrades. In other cases, installing it is a pointless waste of money. It will make the car noisier and a roar will be heard when driving.
3. Another effective way to increase engine power is to install a sports range on the gearbox. At the same time, a 6th gear will be added, and the car will accelerate more dynamically due to a change in a number of gear ratios. The overall engine power will not change, but the dynamic characteristics will become noticeably better. At the same time, replace the piston group and install a more powerful engine. Deep reworking of the engine and gearbox will allow for a qualitative change in the power plant. You will feel the dynamics already when you first start the engine and accelerate. Such tuning will be expensive, but it will be worth it.
4. Chip tuning is most often recommended for injectors. Using a simple laptop, a small amount of equipment and application programs, the ECU is configured. The advantage of this method is its low cost - you do not have to carry out mechanical work or interfere with the elements of the unit. If you make a mistake, it will be enough to replace the on-board computer. It will cost less than replacing an engine if another type of tuning fails. After flashing the ECU, you will immediately notice a change in engine performance.

There are many techniques with which you can change the characteristics of a carburetor and injection model. Most work is carried out mechanically. If you have never encountered routine engine repairs until now, and you have little understanding of the principle of its structure, then entrust the modernization to professionals. They will offer you a change program and do the job efficiently.

Source: ladaautos.ru

Engine tuning options

VAZ 21093 engine tuning

As mentioned above, engine tuning involves several methods. They all have both their advantages and disadvantages.

Engine modernization in the first way

This option involves installing and replacing the following components:

• Lightweight connecting rods, which fit the size 121 mm.
• A lightweight crankshaft, the piston stroke of which should be 78 mm.
• Lightweight piston rings.
• Cylinder head borrowed from Lada Kalina.
• Forged pistons having a diameter of 82.5 mm.
• Camshaft size 11.3 mm.

Note. This modification of the engine gives considerable power, which in l/s is equal to 98. This also makes it possible to reach a maximum speed of 183 km/h.

Easy tuning of the VAZ 2109 engine

Method two

This method involves upgrading the engine by interfering with the operation of the transmission and carburetor. In this case, such modernization will not require too high financial costs, unless, of course, the work is carried out on its own. So:

• The first step is to install a new filter, which should have a diameter of 70 mm. This filter must have a direct-flow outlet device. This will make it possible to increase engine power by 10 l/s.
• We install a 5-speed transmission.
• We install a new oil cooler.

Option three

This method of engine modernization involves the installation of the following parts:

• New oil nozzles.
• Lightweight pistons.
• Lightweight crankshaft.
• New gearbox.
• Lightweight flywheel.
• Improved grip.

In addition to the above, a lot of new components are installed on the car, including a non-contact ignition system, a sports muffler (see: We do high-quality replacement of the muffler on a VAZ), a copper radiator, and so on.

Carburetor

This part of the car is given special attention when improving the engine. In particular, the carburetor is replaced along with other parts:

• First of all, the spring is removed from the vacuum drive of the second chamber damper. This gives a good increase in power.
• You can also modify the vacuum drive by inserting a homemade wire ring into the design.
• The diffuser is being replaced.
• The pump nozzle is being replaced.