Do-it-yourself VAZ 2107 carburetor tuning options

Surely any owner of the "seven" encountered one or another malfunction in the carburetor. The outdated VAZ model requires special attention and care, especially for carburetor versions of cars.

Tuning carburetor VAZ 2107

To improve the performance of their "iron horse", the owners in most cases attempt tuning. Tuning the "classics" has become a habit for many Russian drivers - after all, it is almost always possible to improve both the ride quality and the appearance of the car without large financial investments.

Tuning a VAZ 2107 carburetor is one of these possibilities. Often, when finalizing the carburetor, tuning of the entire power unit is not required, which can be considered significant savings when working with an old car.

Carburetor tuning is needed for a car for several reasons:

• savings on engine tuning;
• reduction in fuel consumption;
• increase in engine power;
• give the car more traction.
  

  Various versions of domestically produced DAAZ carburetors are installed on the VAZ 2107

It is worth noting that the car owner can perform most of the procedures with his own hands - of course, if he has practical car maintenance skills.

Options for refining a regular VAZ carburetor

There are two main options for self-refinement of the carburetor, which is installed on the "seven" by the factory. The advantage of any of them is obvious - no need to buy a new carburetor. However, the owner must know the design of the standard device well in order to be able to correctly complete the revision.

Structural revision

Structural revision is considered one of the most common ways to "mobilize" all the forces of an old carburetor. This is how the problem of engine power is solved - immediately after refinement, the driver will feel cardinal changes in the power traction of the car.

Structural revision can only be carried out on a carburetor removed from the vehicle. It is recommended to pre-clean the body of the device from dust and traces of gasoline.

Refinement of the design of the carburetor on the VAZ 2107 involves the following steps:

1. Removing the vacuum pump connection spring and throttle valve in both chambers.
2. Making a drive from a thin wire and connecting the damper to the pump levers directly - that is, replacing the springs with wire.
3. Replacing the diffuser of chamber No. 1 with a larger one (from 3,5 to 4,5).
4. Installing a new atomizer on the accelerator pump (atomizer must have a value of at least 40).
   

   The essence of the procedure is to replace some elements of the device with more productive ones.

On this, the minimum design refinement of the carburetor on the VAZ 2107 can be completed. However, experienced car owners still recommend replacing jets - both air and fuel. This will provide the carburetor with more stable flows of the two components of the emulsion (gasoline and air), especially if you install jets with a higher throughput (1-2 sizes larger than the regular ones).

Wider air jet openings will create a richer mixture faster

The work done will not only increase the engine power, but also save on fuel consumption. Although in some cases, as motorists note, replacing the springs with wire does not allow the dampers to close in time, which can lead to an increase in gas mileage.

Video: work process

refinement of the carburetor VAZ 2107 (ozone)

Tuning when using a repair kit

Using a carburetor tuning kit is suitable for those cases when the driver is no longer satisfied with the operation of the power unit - slow acceleration or loss of power when driving uphill. At the same time, the cost of a conventional repair kit is low, while the effect of its use can be felt immediately.

The repair kit includes all the parts necessary for tuning

Such a refinement includes a series of actions with a completely disassembled carburetor:

1. A repair kit is purchased for the factory carburetor DAAZ.
2. Sandpaper of the finest grit polishes the main diffusers. Small diffusers are also polished, but with a fine-grained file.
3. All parts from the repair kit are installed or changed, after which the carburetor is assembled.
4. If necessary, fuel consumption is adjusted (using quality and quantity screws).
   

   Grinding reduces friction between nodes and allows you to optimize the performance of the carburetor

This tuning method requires maximum attention and caution. If at least one element of the repair kit is installed incorrectly, then the stable operation of the carburetor is out of the question.

Video: using a repair kit

Refinement of the Ozone carburetor for everyday use

Installing a sports modification

Not all owners of the "sevens" know that the Dimitrovgrad Automobile Aggregate Plant, in addition to standard equipment, also produces sports versions of carburetors.

So, the VAZ 2107-1107010-07 Solex-Sport carburetor is just considered such a version that can give the car a significant acceleration. Its main advantages are that significant improvements have been made in the design of the installation:

• jets with a higher throughput are used;
• increased productivity of the accelerator pump;
• improved cold start characteristics;
• the design of the drives for opening the chambers has been changed.

Thus, the modification "Sport" allows you to use all the power capabilities of the engine. However, fuel consumption will be about 10% higher than when driving with a typical DAAZ carburetor.

"Solex-Sport" is the first domestically produced sports carburetor for VAZ cars

The process of installing a sports carburetor on a VAZ 2107 is no different from installing a standard one - after all, the manufacturer made sure that the new device had the same dimensions and connectors for connections.

The traditional installation scheme is as follows:

1. Install a new gasket in place of the carburetor seat.
   

   The gasket is put on the collector studs
2. Put the carburetor on the studs, press it to the gasket.
3. Tighten the fastening nuts, but not all the way - just screw them onto the studs.
   

   The carburetor is put on the studs and pressed on top with nuts
4. Put the throttle actuator (spring) on ​​the corresponding connector of the carburetor.
5. Connect all suitable wires and hoses to the carburetor body.
   

   When connecting, you must be guided by the data from the service book for the car
6. Finally tighten the fixing nuts.
7. Connect economizer.

However, not all car owners believe that it is advisable to install the Solex sports carburetor on the "seven".

you stupidly buy a Solex 21073 from a 1700 field and you don’t need anything else. Alteration will require only 200r. and not as they ask for 5800r, this is a scam for suckers. it is possible to improve the dynamics of acceleration with almost a small increase in fuel consumption. not like on these Solex sports

Popova Natalia

https://otvet.mail.ru/question/66262989

Carburetor from a more powerful car

When choosing a carburetor from a more powerful version of the VAZ, one should keep in mind both the engine size and its resource. The carburetor must always match the powertrain, otherwise the fast and easy ride that the driver hopes for will not work.

So, on the "seven" you can install more powerful carburetors from the "Niva", "Lada Priora" and other VAZ models, however, installation will require some modifications in terms of fastenings and connections, since the carburetor bodies have a different structure.

A more powerful carburetor may well be installed on the VAZ 2107 engine

Experienced VAZ 2107 car owners do not recommend mounting carburetors from imported car models on a car. Such work will take a lot of time, besides, imported installations are several times more expensive than domestic ones. And the desired result may not appear for one simple reason - some minor mistake was made during the installation process.

Therefore, it is advisable either to simply buy a new domestic carburetor, or to put two carburetor installations on the VAZ 2107 at once.

How to put two carburetors on a VAZ 2107

Two simple regular DAAZ carburetors will give the car more power. In addition - and this should be put at the forefront - two carburetors working in pairs significantly reduce fuel consumption. It is this factor that is most relevant in our time, when gasoline prices are rising every month.

Installation of two carburetor installations is recommended in the following cases:

• an increase in the power characteristics of the car is required;
• it is necessary to reduce fuel consumption;
• there is no dynamics during acceleration and overtaking;
• there is a need to reduce the toxicity of emissions.

The installation process is best done in a car repair shop, as the work is considered difficult. If you make a mistake, you can disable the power unit.

The installation of two carburetors on the VAZ 2107 involves some modifications to the engine compartment

To work, you will need the following tools and parts:

• two carburetors of the same model (DAAZ);
• two collectors (preferably from the Oka car);
• set of wrenches;
• passages;
• drill;
• Angle grinder ("Bulgarian");
• vise.

In addition, it is better to stock up on various auxiliary materials in advance: hoses, tees and antifreeze.

Operating procedure

The installation of two carburetors on the VAZ 2107 begins only after the antifreeze has been completely drained from the system and the old carburetor has been dismantled:

1. Unscrew the manifold fasteners, remove it.
2. In place of its fixation, install two collectors from the Oka, fasten them with nuts. To do this, cut the threads on the cylinder block in the appropriate places.
   
   

   Two small collectors from the Oka car are installed in place of the regular one.
3. Put two carburetors on the manifold studs.
4. The first immediately check for the opening of both chambers (by pressing them with your hand), see if the edges of the collector stick out. Similarly, check the second carburetor. If the edges of any collector stick out a little, it must be removed, clamped in a vice and the excess parts removed with a drill.
   
   

   After installing and aligning the manifolds, carburetors are attached to them
5. Make gasoline tees from hoses and docking elements.
6. Connect through them the fuel supply system to the carburetors.
7. Connect the vacuum brake booster.
8. Install the gas drive from the cable to the desired connector.
9. Pour antifreeze into the system and start the engine.
   

   After connecting all the necessary hoses, antifreeze is poured into the system and the engine is started

Video: two carburetors on the "classic"

Tuning VAZ. Two Solex carburetors. Tuning VAZ. Two Solex carburetor.

In most cases, the carburetors will need to be adjusted so that they have the same performance.

On the VAZ 2107, you can use different types of carburetors. However, with self-tuning, you should not forget that the best equipment for a car is what is installed at the factory.