How can you increase the power of a VAZ 2106 engine with your own hands?

How to increase engine power in a VAZ 2106: description, photo, video

Many motorists have wondered how to increase the power of the VAZ 2106 engine. Since the design features of the power unit are quite simple, the process of modifying the engine is also not complicated, and a motorist with average knowledge of the design can handle it. But, before you start describing the process itself, you need to know what technical characteristics the 2106 engine has.

How to perform engine tuning on a VAZ 2106

The Six was a real breakthrough in automotive technology for its time. But today the characteristics of its engine are not at all impressive. Its power is only 75 horsepower. The maximum acceleration to hundreds is as much as 16 seconds! And the speed limit is 150 kilometers per hour. Naturally, modern car enthusiasts are thinking about how to tune the VAZ 2106 engine. Reasonable questions arise:

• Will modifications to the six-six engine be beneficial?
• What ways are there to modify the VAZ 2106 engine?
• What will be the consequences for the rest of the system?

Let's look at these questions in order.

Specifications

The VAZ 2106 engine has standard technical characteristics that are inextricably linked with all representatives of the “classic” line. If you look from a design point of view, then all VAZ 2101-2107 internal combustion engines on a carburetor basis are similar to each other. Before proceeding directly to the modification, let’s consider what technical characteristics the power unit labeled 2106 has:

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.

FORCING VAZ 2101-06 and M-412 ENGINES (part 3)

Cylinder head design and preparation

The engine cylinder head, together with the cylinder, forms a supra-piston cavity in which all thermal processes of the working cycle take place. The complexity of the cylinder head design is due to the many functions it performs, as well as a number of requirements placed on it: providing a combustion chamber shape that helps improve the combustion process to achieve maximum values ​​of mean effective pressure;

sufficient rigidity and strength;

possibility of placing a camshaft;

smooth transitions and uniform wall thicknesses to increase reliability under mechanical and thermal loads;

ensuring minimal resistance in the intake and exhaust tracts;

ensuring uniform circulation of coolant with more intensive cooling of the hottest walls around the exhaust channel;

possibility of placing inlet and outlet pipes and other auxiliary equipment.

The cylinder head of the M-412 engine is made of aluminum alloy AL-4 with a hardness of at least HB 75. The good thermal conductivity of the aluminum alloy predetermines the possibility of engine boost associated with an increase in the thermal stress of the cylinder head and equipment placed on it. For athletes who have completed the sports category and reached the finish line of several competitions due to the reliability of a standard engine, it is time to think about increasing the dynamics of the car and increasing its maximum speed.

In table Figure 28 shows the calculated values ​​of the compression ratio of the M-412 engine for different milling depths of the cylinder head. (Compression ratio of the standard M-412 engine = 8.8.)

Dependence of the compression ratio of the M-412 engine on the depth of milling of the block head

Dependence of the compression ratio of the VAZ-21011 engine on the depth of milling of the block head

The VAZ plant produced cylinder heads with three markings cast on the left side above the parting plane. Heads marked 2101-1003015 and 21011-1003015-10 (a unified head currently installed on engines of all models) have the same combustion chamber volume - 32 cm3. The cylinder head marked 21011-1003015 was installed until mid-1976 only on VAZ-21011 engines. This should be taken into account when assembling parts for engine assembly.

Conclusion

Upgrading and increasing the power of a VAZ 2106 engine is quite simple, so even a car enthusiast without technical education can cope with this procedure. There are several options and ways to modify the power unit. So, it all starts with boring and ends with replacing the air filter. All of the above recommendations will increase the power of the power unit by 50-80 horsepower.

Source

What's the result?

As you can see, engine tuning, including classics, in terms of the scope of work largely affects the BC and cylinder head. However, we should not forget that the carburetor will also need tuning. It is not surprising that a forced engine requires more gasoline and air, that is, the carburetor also needs to be upgraded and tuned.

As for the parts for the internal combustion engine, everything will depend on the specific tasks. If the budget allows, it is best to install special connecting rods, replace cast pistons with forged ones, replacing bearings, etc. is also recommended.

Finally, I would like to add that if all the work is done correctly, then even a significant increase in engine volume does not greatly affect fuel consumption. Moreover, consumption may drop. The fact is that better traction, elasticity and throttle response of the engine after modifications allow you to spin the power unit less in lower gears for acceleration and maintaining the usual driving pace.

The main thing is to correctly configure the carburetor and ignition system, taking into account the changed working volume of the internal combustion engine. As a result, a forced engine increases the operating comfort of the vehicle, and the procedure itself is often cheaper than swapping an engine or, moreover, installing a turbocharger on a carburetor with minimal modifications to an existing power unit.

Possibility of installing a turbocharger on an engine with a carburetor. The main advantages and disadvantages of turbocharging on a carburetor car.

Refinement and modernization of the carburetor. The main disadvantages of the carburetor injection system and how to eliminate them, settings. Intake manifold tuning.

Boosting the engine. Pros and cons of modifying an engine without a turbine. The main methods of boosting: tuning the cylinder head, crankshaft, compression ratio, intake and exhaust.

How to increase engine power in a VAZ 2106: description, photo, video

The VAZ 2101, 2103-06 or Niva models, well known in the CIS, are usually called “classics”. The power units on these machines are carburetor and today are very outdated, however, given their prevalence, there are many who want to modify these internal combustion engines.

Taking into account the fact that the engines themselves are quite simple and do not have electronic control, such tuning of a VAZ classic engine can be done even by yourself in a garage. The main thing is that you have at hand all the necessary tools for disassembling the internal combustion engine, the necessary spare parts, as well as the availability of knowledge and skills.

The result may be boosting the engine to 110-120 horsepower. There are even examples with a power of about 150 hp. (depending on the quality and depth of modifications). In this article we will look at how to increase the engine power of a VAZ classic.

Replacing the camshaft

To fill the combustion chamber as completely as possible with the fuel mixture, a special “sports” camshaft is installed. The shape of the cams of such a camshaft and the angle of their rotation are capable of opening the engine valves more strongly and for a longer time, and the split gear mounted on the camshaft helps to most accurately set the valve timing.

This allows you to achieve higher torque and power within certain speed limits of the power unit. In this case, the detonation boundary shifts so much that even at low speeds the fingers do not “knock”, which means that the service life of the unit increases. If you watch a video of the operation of the modified six engine, you cannot help but notice the improved throttle response of the engine after modification.

Boring an internal combustion engine

Let's consider the first option, forcing. To do this, you need to bore the cylinders.

The standard version of the eight-valve six engine has a volume of 1,600 cubic centimeters, four hundred per cylinder. When boring, you will have to remove a certain layer of metal on the cylinder walls. This can only be done on special machines.

You can remove as much metal as the walls will allow. But do not forget to take into account the peculiarity - in the factory design the walls were designed for a certain mileage, and boring will significantly reduce this figure.

The essence of the forcing method is boring on a special machine and installing a new, enlarged piston. This modification option will make it possible to increase the power by more than a dozen “horses”.

Tuning (boosting) VAZ engines

When compiling the material, photographic materials were used from the Internet resources Injector-VAZ, SVR Conversions, Team-RS, Dvigateli-VAZ.ru, MotoProm, Kartuning, OKB “Dynamics” and many others.

Some materials may be duplicated with the main content of the site. This is a very popular article. It, with bills (but mostly without), was stolen and posted on a good dozen “tuning” sites and in the automotive press of the state of Ukraine. (I’m even somewhat flattered that so many people steal from me - it means there is something. In this regard, I allow free reprinting without reference to the original source for all representatives of sexual minorities of the passive type).

You judge the quality of the “services” of such “tuners” who themselves cannot put two words together about what they offer people for a lot of money. People, be careful!