Modification of the throttle valve VAZ 2110 8 valves

Other

Makes and models of cars for which MD tuning was done

Audi - 100, Q5 BMW - X3, X5, 520i, 525, 528, 740 Cadillac - Escalade Chery - Amulet, Fora, Tiggo, Tuzo Chevrolet - Aveo, Blaizer, Cruze, Lacetti, Lanos, Niva, Suburban, Tahoe Chrysler - Sebring Daewoo - Espero, Matiz, Nexia, Rezzo Daihatsu - Terios Dodge - Caravan, Dacota Ford - Expedition, Explorer, Focus, Maverick, Mondeo Honda - Accord, CRV, Legend Hover Great Wall - H3, H5, Wingle Hummer - H3 Hyundai - Accent , Elantra, Getz, Santa-Fe, Solaris, Sonata, Terracan, Tucson IX35 Infiniti - G35x Sport, Qx4 Isuzu - Rodeo Jac - Refine Jaguar Jeely - Otaka, MK KIA - Ceed, Cerato, Picanto, Rio, Sorento, Spectra, Sportage Lexus - LS-430, LX-470, RX-300 Mazda - 3, 6, CX-7, Tribute Mercedes-Benz - E, C, G, CLK 320, SLK 230, Vito Mitsubishi - Airtrek, Carizma, Challenger, Delica , Galant, Lancer 9, 10, Montero Sport, Outlander, Pajero, Pajero Sport Nissan - Avenir, Almera Classic, Almera N16, Nout, Quashqai, Primera P12, Serena, Teana, Tiida, X-Trail Opel - Astra, Omega, Vectra Renault - Kangoo, Logan, Megan, Sandero Samand - Iran Khodro Škoda - Fabia, Octavia Tour, FSI Ssang Yong - Korando, Kuron Subaru - Forester, Forester Turbo, Impreza, Outback Suzuki - Grand Vitara, Jimny, Samurai Toyota - Altezza, Avalon , Cami, Camry, Corolla, Fortuna, Fun Cargo, Harrier, Land Cruiser Prado, 100, 200, Starlet, RAV-4, 4Runner, Windom Volkswagen - Caddy, Bora, Polo, Vento TagAZ - Tager, Vortex Tingo VAZ - all models GAZ - Gazelle UAZ - Patriot

After the problem with idle speed, described here, I began to look for solutions. I started with the throttle valve, since it is the easiest in my opinion, since I don’t yet have heating for the throttle valve and adsorber, this entry in the BZ Source helped me with the implementation. I removed the throttle and cleaned it using carburetor cleaner aerosol.

Practice. Effect

Unfortunately, I myself forgot to measure the acceleration “before and after”. But on the well-known YouTube site I found a video of one guy who was just doing this procedure. At first he had a completely stock VAZ-2112 coupe. Acceleration from zero to 100 km/h was around 11.9 seconds. Then he installed a larger throttle (56mm) and it turned out that the acceleration from 0 to 100 took one second less than before, namely 10.9 seconds.

So, let's figure out what are the advantages of this tuning. Firstly, there are no difficulties during installation; it is installed in place of the standard one without any modifications. Secondly, the response to the gas pedal has become more responsive. Thirdly, low price. Fourthly, this tuning does not require any sports brains or tuning.

Disadvantages of a large throttle:

• I personally had troubles with XX (idling speed);
• twitching appeared at the “bottoms” (low revs);
• the car begins to respond more sharply to small movements of the accelerator pedal, as a result, comfort in the cabin disappears and fuel consumption increases.

Conclusion: this spare part is needed by those who “chase power.” Who cares about horses under the hood rather than comfort? Such tuning will not appeal to a careful driver who is used to driving quietly and calmly.

Gasoline is used as fuel in the internal combustion engines of VAZ-2109, VAZ-2110 and other models produced or produced by the Volzhsky Automobile Plant. However, in the cylinders it does not burn on its own, but in a mixture with air. The throttle valve is needed to prepare the air-fuel mixture in the required proportions. It is located behind the air filter in front of the intake manifold.

Basically, the throttle valve is an air valve that regulates the amount of air entering the engine. The principle of its operation is to change the cross-section of the air channel. When it is fully open, air flows freely into the intake manifold. To determine the opening angle, a throttle position sensor is used, which is connected to the engine control unit. Based on the signals transmitted by the sensor, the control unit issues a command to increase the amount of fuel injected, the working mixture is enriched, and the engine operates at maximum speed.

Throttle valve device

The design of the throttle body is not as simple as it might seem at first glance. Among other things, it is also part of the engine cooling system. It has channels for coolant circulation. It is also equipped with pipes, one of which is connected to the engine crankcase ventilation system, and the second to the gasoline vapor recovery system.

Idle speed control

The idle air control is an electromechanical device whose task is to maintain a certain crankshaft speed when the throttle valve is fully closed. For example, while the engine is warming up or the load changes, when additional equipment is turned on. The design of the idle speed controller is as follows: inside the housing there is a stepper electric motor, to which a spring-loaded conical needle is connected. When the engine is idling, the needle, moving back and forth, adjusts the cross-sectional area of ​​the bypass air channel through which air passes when the damper is fully closed.

The throttle valve can have two types of drive:

1. mechanical, like VAZ-2109, VAZ-2110, VAZ-2114;
2. electric, which is used on most modern cars.

Throttle bore

Stayed after work, planned for a couple of hours...

I worked too diligently and meticulously on the cone and steps, there was little time left for the rod, but it turned out to be very strong, and it was not possible to grind it down completely... I wanted to somehow get home and put the damper in place at night without comme il faut)))

Result: I've been riding for 3 days already, honestly, I haven't really felt any results... Maybe, maybe, etc. at rpm from 2000 to 3000 the car drives a little more lively, but maybe it was the wind at the back, a hillock, etc.))) I think we still need to cut grooves, then maybe we’ll feel the result. And the engine should probably be set to 1.6))) then it will drive more vigorously than 1.4)

But as a matter of fact, there are a lot of reviews on the Internet for these improvements, some for, some against. I just decided to try it because I don’t have to spend money on it, I have the tool, just time. Until you try it yourself, you won’t know what the result will be.

Throttle position sensor

This sensor is a potentiometer. When you press the gas pedal, the position of the damper and the voltage supplied to the controller changes. When closed, the voltage is 0.7V, when fully open it is 4V. In accordance with these data, the sensor controls the fuel supply.

If a malfunction of the position sensor occurs, the controller will not be able to correctly determine the position of the damper. This results in the following malfunctions:

• in all engine operating modes, the speed begins to fluctuate; at idle, the speed will be increased;
• when you switch off the gear (neutral) while driving, the engine may stall;
• Sometimes the CHECK light may come on.

To check the functionality of the position sensor, you can use a multimeter. With the ignition on, the probes are connected to connectors B and C. Changing the position of the damper should lead to a change in voltage.

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Results after MD tuning

We decided to test the effectiveness of MD tuning. First we conducted an experiment on a machine with a cable. The verification consisted of the following stages:

• Full filling of the gas tank;
• Driving approximately 20 km;
• The gas tank is full again, fuel consumption is 2.01 liters;
• Performing MD tuning on a 46 mm throttle assembly;
• Riding again 20 km;
• The gas tank was full again, fuel consumption was 1.61 liters.

As you can see, the implementation of MD tuning made it possible to save approximately 20% of fuel. Low-end power has also increased.

Next, we decided to conduct the same experiment on a car with E-gas. In this case, the throttle upgrade saved approximately 9% of fuel. In addition, the response to the gas pedal has accelerated.

Why is it necessary to modernize the throttle valve on VAZ-2109, 2110, 2115

Spare parts stores sell throttle assemblies with valves of increased diameter (52, 54 and 56 mm) for VAZ-2109, 2110 or 2115 cars. According to the sellers, by installing such a valve instead of the standard 46 mm one, the car owner will receive significant advantages: the car becomes more responsive to the gas pedal, problems with idle speed disappear, the car's dynamics improve, and this is especially noticeable if you replace the standard air filter with a zero-resistance filter. The main argument that they try to convince car owners is that the engine requires more air to operate efficiently, for which it is necessary to replace the standard throttle assembly with an improved one. They even give figures: the diameter of the VAZ-2109 or VAZ-2110 receiver is 53 mm, and a damper with a diameter of 46 mm allegedly “strangles” the engine.

Many VAZ-2109 and VAZ-2110 owners succumb to persuasion and replace the standard device with an improved one. After this, indeed, the engine works better and the car drives more dynamically. The reason for the improvements actually turns out to be much more prosaic: instead of the old, dirty throttle body, which had long been in need of thorough cleaning, the owner installed a new one. As a result, the engine returned to normal operation, which is perceived by the owners as the promised responsiveness and agility of the car.

What to do additionally

After modernization of this type, it is necessary to perform a number of additional manipulations:

1. Rechip the ECU, since using a new part the old program will not work adequately. It will not be able to properly control the ratio of air and fuel in the mixture.
2. Install a sports receiver. But before installation, be sure to consult with specialists or simply contact a car service center for help.
3. Replace existing camshafts with more advanced ones.

Refining the throttle assembly is a serious procedure, there are a lot of different disputes regarding it, those who have tried such tuning in practice praise the result, but theorists swear. But the opinion of practitioners still prevails, and the fact that after modernization fuel is saved by 30% is already a proven fact.

Modification of the rear lights of the VAZ-2114

There are many options for modifying taillights. Here are a few of the most popular:

• individual LED elements;
• LED rings;
• LED inserts and overlays.

For individual elements of LEDs, LED strips or rings are used; for the body, reflectors of different sizes and corresponding colors are excellent, which can be purchased without much difficulty in automobile stores. The paint is also selected according to your taste and desire. In order to place the rings in separate cylinders, you can use tin cans, after carefully cutting out the desired size. If you decide to mount LED trims inside the headlights, then do not forget that they are mounted on top of the rear optics.

In any of the listed options, you cannot do without soldering iron skills. If you don’t have the skills, but want to modify the taillights, then it’s better to contact a tuning studio, where professionals will do all the work for you.