Direct flow as the basis for engine tuning and installation of a direct flow intake for the Lada Priora engine

Hello everyone, I decided to combine all the posts into one. And so, from the moment I bought the car, the exhaust made itself felt as it covered 155,000 km. First of all, the rear muffler burned out. After inspection, it became clear that it could no longer be repaired. CBD GAL015 Muffler VAZ 2172, 21723 hatchback, stainless steel. steel "CBD" RUB 1,254.26 —————————————————————————————————————————— —- After 3 months of driving without problems, the muffler roared again, this time the resonator fell off. It also rotted from the inside beyond the possibility of repair. Resonator assembly CBD RAL007 Resonator VAZ 2170 Lada Priora with corrugation, 21101/103/104/12/11/70 from 2008 onwards. stainless steel steel "CBD" 1895.28 rub. ————————————————————————————————————————————- Well, according to tradition, it remained The last part to replace is the cat manifold. This time there was no sound, just the check p0422 Low catalyst efficiency came on. After throwing it off a couple of times it appeared again. The car began to feel sluggish when accelerating and gasoline consumption increased to 8.9 liters per hundred. I thought for a long time what should Spider4-1 do? Subaru sound? turbo manifold? As a result, seeing that my budget is not a fountain, all this went by the wayside. and was purchased on Avito for a used cat manifold, ideally Euro4. 1500 RUR AvtoVAZ 21124-1008089-00 Manifold gasket 124 issue 1.6V metal (VAZ-VATI) 145.57 RUR AvtoVAZ 21100-1203021-12 Muffler flange GASKET

2110.1118.2170 83.95 rub. AvtoVAZ 11190-1203075-00 Locking plate for resonator nuts 1119, Serdobsky Machine-Building Plant, PO ZAO, Serdo 37.67 rubles Plus three copper nuts m8 60 rubles Additionally, in place of the standard catalyst screen, I put a screen from the vest. 8450006428 Vesta catalytic collector screen RUR 730.55 The screen from Vesta looks more modern than the standard Prior one. To install it, you need to drill 2 holes and cut an M6 thread. Attached from the bottom normally. And bend it a little from the bottom so that it doesn’t rest against the engine shield. In general, after installation everything looks cheerful. I like. And most importantly, the car has become an order of magnitude more energetic, with a more powerful response from the engine to the gas pedal. Along the way, with a dead catalyst, the ECU reduces the dynamics for the sake of the environment. And when he is a living machine, it’s just sad. In general, there is no smell of exhaust now and inspection can be passed without any problems. Consumption became 7.5l And the check is not lit) ———————————————————————————————————————— ——- And that repair of the standard system = 4999.06 rubles —————————————————————————————————————— —————- And I was fired up with the desire to make a double exhaust. The desire was initially after replacing the rear can. I was thinking from the beginning of buying a ready-made kit from the stinger. but the budget, as always, limited me at that time and I thought, with a price tag of 6000 rubles, I could do no worse! And I did: First of all, I And by chance, in traffic, I saw a Priora 95 region and a 2nd exhaust on Moskovsky Avenue))) Lexus Style

and then I was inspired to do the same. But after googling what it cost, I realized it was expensive (((I monitored Avito and found original used nozzles from a Lexus RX 2014 at an affordable price)) 600 rubles for the left one and 850 rubles for the right one. The advertisements were in different disassemblies and the chance to buy a pair was 50/50, I took a chance and bought it)) And so now there are attachments, they need to be implemented. but as? They are large and cannot be pushed through the hole. Moreover, they are welded to the diffusers. I found a solution: break out the weld from the diffuser cover. Next, we adjust the diffuser to the bumper and then connect it back with rivets. Based on the gaps, it is not ideal and it is understandable because they are from another car. and that’s 1450r for nozzles ============================================================= ===================== The nozzles are now in place, but there is no exhaust in them, what should I do? To begin with, the budget is as always minimal. I decided that the exhaust on the right side would be controlled (namely, I would install a throttle), a stronger and a straight pipe. On the left side there will be a new bank drain. Having thought about this whole thing. Started manufacturing For this I bought: A11-1200017 SILENCER MOUNTING BRACKET 2 pcs 87.06 RUR (for the right side) then standard rubber bands 2170 140 RUR (for the right side) CBD STAL102 Stronger universal CBD 50550.90, aluminum body 704.10 RUR bolts 8x60 70r + copper nuts 60r damper drive selected choke cable from 2108.150r plus throttle cable stops from 2111 8klop 2pcs 30r and that +1241.16 —————————————————————— —————————————————- Additional hardware: a broken throttle body from a Mercedes W210 was found at work. All unnecessary elements were sawed off and the holes for M8 bolts were enlarged, from the factory M6. The plates for it were made of steel because you can’t weld pipes to aluminum. With the plates, we just outline the damper, cut it out and drill holes. the plates were cut from a sheet of iron from 4mm scrap metal. there is a damper and then I took the pipes from an old resonator that had rotted. I sawed off the defective elements. I took the pipes for the nozzles from 2107 lower pants. (from scrap metal) fastenings for new ears on the right side, also from a standard dead resonator.

Direct flow as the basis for engine tuning and installation of a direct flow intake for the Lada Priora engine

You will need : drive the car into the inspection hole, prepare tools (13mm socket, 13mm wrench, mounting blade).
Removing the Priora muffler:

1. Unscrew the nut of the bolt securing the clamp that connects the pipes of the additional and main mufflers, using a 13mm socket. Using the same tool, we hold the bolt on the other side from turning.
2. Remove the clamp by loosening the nut of the other clamp mounting bolt.
3. Remove the O-ring by pulling the muffler back and moving it to the side.

To release the Priora muffler mount:

1. Remove the muffler bracket from the hole in the front cushion by prying it with a mounting spade.
2. Remove the muffler bracket from the hole in the rear cushion, pry it up with a mounting blade and lean on the muffler pipe.
3. Remove the main muffler.

Installation of the muffler on the Priora is carried out in the reverse order, after first replacing the rubber muffler cushions (gingerbread) with new ones. Finally, we rock the muffler and check that it does not touch the body or fuel tank.

What you need to prepare

You will need a fairly small set of tools, which, without a doubt, can be found in any garage. The list is as follows:

• key to 13;
• drill;
• drill 1.5 mm;
• Phillips screwdriver;
• screws 2 pcs. (4 millimeters);
• standard clamps for fastening the exhaust pipe;
• 2 muffler pillows;
• mounting bracket.

When preparing a drawing, it is important to take into account the length of different types of bodies. If, for example, you assemble an exhaust according to the dimensions for a station wagon or sedan and install it on a hatchback, the pipes will protrude too far.

The difference should be taken into account, and then the bumper and pipes will look more harmonious and elegant.

Advantages of dual exhaust

You may ask, what is the point of tuning the exhaust system if it already functions flawlessly? The bifurcated muffler has special advantages:

• Increasing the intensity of exhaust gas removal by reducing resistance, and as a result - increasing engine power;
• Additional reduction of noise level during operation of the exhaust system;
• Giving the car an aggressive, spectacular “sporty” appearance;
• Providing a smooth, unique “noble” sound to a running car.

There are two options for installing a dual exhaust on a Lada Priora - purchasing a bifurcated muffler in a specialized store and making your own system from individual elements. The first tuning method is quite expensive, but the second requires only certain skills, some parts and the simplest tool.

Execution of work

The manufacturing process of the structure itself is shown in the video, which is located at the end of the article, so we will not dwell on it in detail. We'll tell you more about installation.

The machine is installed on a ramp or pit. The further procedure will be as follows:

• completely remove the factory muffler along with the clamp securing it to the resonator;
• the finished exhaust system (its right part) is suspended on original cushions;
• leave the left one unfixed;
• the common output is connected to the resonator with a clamp;
• the left exit is applied directly to the spar and the location of the fastening is marked;
• drill holes there for the bracket and mount it;
• the outlet is fixed.

Before fully tightening all the screws, you need to make sure that the dual exhaust system is located at the correct angle to the ground.

Finally, it is worth recalling that since the new pipe runs in close proximity to the fuel supply system, it must be wrapped with a cord made of asbestos - this eliminates the risk of fire.

This video explains how to make a double pipe:

First of all, the dual exhaust on a car is a sign of its power. As a rule, many foreign automobile industries are endowed with this attribute, the power and torque of engines are quite large and require a more complex system for intensive removal of exhaust gases from the cylinders.

Twin Pipe Types

The following options are currently most popular among domestic car enthusiasts:

• bifurcated outlet installed after the muffler;
• parallel installation of two pipes with mufflers behind the resonator;
• system with 2 resonators and the same number of mufflers.

Moreover, in the latter case, a twin pipe can also extend from each of them.
As you can see, each option has its own advantages and disadvantages, so the choice remains with the car owner. In this article we will tell you how to make the simplest double exhaust for a Priora. In this scheme, the pipe will be routed after the muffler, that is, the option is purely decorative.

This solution can be implemented in several ways. It will be easiest to weld a branch from the main pipe. However, this option has many disadvantages, which, however, do not affect the quality of the motor. But the fact is that at high speeds less gases will come out of the added pipe. That is, any knowledgeable person will understand that the dual exhaust is pure decoration.

It is better to assemble a structure in the shape of a slingshot, in which pipes of equal length and cross-section, directed in different directions, are installed after the muffler.

Workflow Stages

Types of Dual Homemade Silencers

Let's consider the simplest and low-budget method of installing a dual exhaust on a Lada Priora with the installation of outlets from the muffler pipe under the rear beam of the car. Note that here you can choose one of two options:

• Distribution of pipes of different lengths with welding of branches to the main muffler.

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Two pipes of different lengths are welded to the main muffler pipe

• Welding two pipes with similar lengths, angles and number of turns to the main muffler pipe.

Two identical pipes are welded to the muffler pipe.
Remember that different lengths of pipes, although they affect the amount of gases released (this will be especially noticeable at high engine speeds), do not affect the operation of the engine itself.

Preparing for work: tools and materials

To carry out a full cycle of work, we will need to prepare a set of simple tools and a number of inexpensive materials:

• wrench (socket, open-end, socket) to “13”;
• electric drill with 1.5 mm drill;
• Phillips screwdriver;
• self-tapping screw 4 mm - 2 pcs.;
• standard exhaust system fasteners (clamp + ring);
• muffler cushion - 2 pcs.;
• fastening bracket (holder - bracket).

  
  Clamp with O-ring, homemade bracket, muffler cushion

At the preparatory stage of work, you need to take the necessary measurements and draw up a simple diagram of the design of the double exhaust. There is simply no universal drawing that would be suitable for each individual project. Professional craftsmen advise taking all measurements at the place of work, transferring the data onto paper in a form convenient for you.

Diagram of a homemade dual exhaust outlet bracket

Note that the exhaust system of the Lada Priora sedan and station wagon differs from the same equipment installed on hatchback cars in the length of the main muffler pipe. Installing a dual exhaust on a car with such a body for the first two modifications will result in the system pipes protruding from under the bumper by 150–160 mm.

How to make it yourself

Let's look at the process of installing a bifurcated muffler using the example of a finished sample - all the steps we performed are suitable for installing any structure of this type. The only nuance that can affect the progress of work will be the possible deviation of the pipes of the independently manufactured system from the fastening elements of the original muffler. However, this is not a problem, since all brackets can be easily made and installed with your own hands.

We install the car on a lift or inspection hole, prepare all the necessary tools, be patient and get to work:

1. We dismantle the original main muffler by disconnecting the clamp at the point of its attachment to the resonator (additional muffler).
2. We will hang the right part of the new structure on its seat, installing it on the existing cushions (replacing them in case of critical wear). We do not attach the left side of the muffler yet, but only connect the common terminal of the dual exhaust to the resonator, slightly “baiting” the clamp and the O-ring.

   
   Installation of a part of the structure on the seat of the original muffler

3. Let's attach the left bend to the side member on the bottom of the car, mark the attachment point of the bracket-bracket.

   
   Left part of the structure, mounting bracket and muffler cushion

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4. Using a drill, drill two holes and securely fasten the bracket with self-tapping screws.

   
   Preparing holes for installing the bracket-holder

5. We hang the muffler outlet on the bracket using a fastening rod, after inserting the cushion into the holder bracket.

   
   Installing an additional muffler outlet

6. In our case, the elements of the dual exhaust need to be connected to each other using a clamp with O-rings (do not tighten too much). We exclude this stage of work when installing a solid structure.

   
   Connecting the branches to each other using a clamp

7. It remains to check the angle of the dual exhaust outlets relative to the ground. After making sure that they are at the same level, tightly tighten the clamps at the junction of the inlet pipe with the resonator and at the junction of the two pipes (if such an element is in the design).

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Checking the angle of the taps relative to the ground

Pros and cons of direct flow:

Larger pipe diameter, i.e. greater throughput and, as a result, increased power;

Fewer unnecessary bends and seams, i.e. the exhaust system has better throughput - increased hp;

Better quality materials, i.e. thicker steel, possibly titanium - increased service life.

The noise level increases - problems when undergoing maintenance in terms of noise level;

Most often, there is no catalyst, or it is a sports one - problems when undergoing maintenance according to environmental standards;

The vehicle's ground clearance decreases due to wider pipes;

Greater engine freezing in winter;

Lack of standard spare parts in case of an accident in the rear.

On many forums they write that if the direct-flow system is installed correctly and all the components are well selected, then no brain-inducing roar appears. The exhaust only produces a noble, bass sound, so you can safely drive into courtyards at night and no one from the balcony will throw a mat-controlled hammer at you. In principle, I agree with this. Watching videos of tuned cars from drifting, circuit and drag racing competitions, no hellish exhaust was noticed. Well, when the tachometer needle approaches the red zone, then the standard muffler will howl so hard that your ears will bleed

Advantages and disadvantages of installing a spider on a VAZ 2170

After installing the “spider” on the VAZ 2170, Priora owners note the following positive changes in its operation:

• the car accelerates faster;
• the maneuverability of the car on the road improves;
• the engine sound is reminiscent of a sports car engine;
• the engine becomes more powerful up to 10 hp;

However, often a change in the design of the exhaust system associated with the installation of a spider can also have negative consequences:

• engine noise often becomes higher and is transmitted into the car interior;
• there is a need to reflash the electronic engine control unit after installing the spider.

Who installed the spider stinger 421 (short) on a Priora 16 cl? Do you need to cut or cook what?

Muffler replacement

The exhaust system operates under conditions of high humidity and constant heat load, as a result of which metal elements are eaten away by rust. Usually, after 2-3 years of operation, even a high-quality unit is not able to perform its task, and the noise in the cabin increases sharply. The strong roar of the engine creates discomfort for the driver and passengers, so the problem must be solved immediately.

Welding work is not the best option. After such repairs, the muffler will not last long. It is better to replace it with a new one as soon as the first signs of malfunction are noticeable. In addition to loss of power and roaring exhaust pipe, this could be knocking on the underbody or fuel tank.

To ensure correct installation of the unit in its original place, it is better to contact a service center or sports tuning company for dismantling and replacement. Removing and installing a resonator (muffler) in car services costs 550-2000 rubles , the exhaust pipe - from 1000 rubles .

Purchased and homemade direct flows

A straight-through muffler can easily be purchased on the auto parts market, where it will not be difficult to select this element of the exhaust gas removal system for any car. The cost of such direct flows varies, and the quality of workmanship also differs. An inexpensive muffler is usually made of thin-walled sheet metal, so it can burn out very quickly. In addition, in such products the amount of filler is often insufficient (it may not be present at all), so with such a muffler the car will roar loudly.

A high-quality direct flow, made according to all the rules and from good materials, will be very expensive, and not everyone will agree to purchase it, especially for an old domestic car.

But there is always the opportunity to make a direct-flow muffler with your own hands. Its design is simple, and not so many materials are required for its manufacture.

There are two ways to make a forward flow with your own hands - remake a standard car muffler and create it from scratch. The first method is convenient because then you don’t have to think about how to secure the product, since all the fasteners will remain. The disadvantage of this method is the fact that the mufflers are made of thin metal, so welding will not be easy.

As for the second option, having the necessary materials on hand, you can make a muffler of any size and with good metal thickness, which will ensure a long service life. But to install a direct-flow gas exhaust system on a car, you will have to think about the mounting method.

Standard muffler - article number and price

The VAZ 2170 Priora is equipped by the factory with spare part item number 2170-120010. Made of light sheet steel with a thickness of 0.8-1.1 mm. Connecting inlet pipe with a diameter of 48mm. Inside the muffler chamber (an oval tank - popularly known as a barrel) there is a series of parallel chambers for the last stage of dampening the force of the sound wave of the exhaust gases. The exhaust pipe allows you to install different types of muffler attachments to add uniqueness and change the sound characteristics of your car's exhaust. The price of such a standard muffler is in the range of 1200-1600 rubles. Of course, you can go much further.

The best resonator manufacturers

Each resonator has a set of pros and cons that manifest themselves during operation. They are noted by car owners and service station technicians. When choosing, you need to pay attention to the features of each model.

Description. The CBD brand belongs to a domestic company that specializes in automotive parts, in particular for the exhaust system.

The range of resonators is divided into two categories. There are standard models that are made specifically for a specific car brand, as well as universal ones that can be connected to most exhaust system pipes.

During production, all quality requirements are met, including GOST, as well as international standards.

The manufacturing process uses carbon or aluminized steel, which are resistant to wear and rust.

This, combined with modern manufacturing technologies, has led to an increase in the service life of spare parts.

Equipment. May vary depending on series. Some resonators are supplied complete with a muffler and other elements. The standard kit includes the spare part itself, fasteners, as well as adapters, a gasket, and a can. There are resonators sold separately.

Roar, shooting, condensation and other reasons to look under the car

It's easy to spot muffler problems. It is difficult not to notice extraneous sounds coming from under the car, or a sharp change in the tone and volume of the response to pressing the gas. It is not uncommon to notice fluid leaking or even splashing from the exhaust pipe. All these are signs of malfunctions, but do they all indicate problems in the exhaust system?

Fluid in the muffler

Fluid dripping from the exhaust pipe is a common occurrence. However, it is worth distinguishing what kind of liquid it is. If it's water, there's nothing wrong with it. When the ambient temperature changes, moisture from the air condenses on the surfaces of the muffler. If a steel muffler is used, this can lead to corrosion, but usually the Priora exhaust system uses aluminized steel or stainless steel, which means that damage from water will be minimal. In cases of heavy accumulation of water, experienced motorists usually drill a drainage hole in the “barrel” of the muffler.

If there is excessive accumulation of water in the muffler, in winter you may encounter icing of the exhaust pipe

If antifreeze drips from the exhaust pipe, the fault should be looked for not in the muffler, but in the engine. The reason may be wear of the cylinder head gasket, as well as depressurization of the block itself. Antifreeze in the exhaust pipe is a symptom of serious problems, and if it is detected, you should immediately diagnose the engine.

Pops and shots from the exhaust pipe

Popping noises coming from the muffler indicate a malfunction. However, this is also a malfunction of the engine, not the exhaust system. Shots or pops from the exhaust pipe indicate that the mixture of air and gasoline does not burn out in the cylinder block, which means that when you hear them, you should check the spark plugs and spark plug wires, as well as the serviceability of the gas distribution mechanism. Problems with combustion of the mixture are not a symptom of a muffler failure, but they can be its cause.

Video: this is what pops from the muffler sound like

Knocking from under the car

A knocking sound from under the bottom of the car while driving or rattling from vibrations is an unpleasant phenomenon. The muffler may touch the gas tank or the underbody. There are several possible reasons for this.

1. First of all, check the rubber muffler hangers. Their wear leads to loosening of the entire exhaust system. These mounts are sold at most auto parts stores. Their price usually does not exceed 100 rubles per piece. Replace the suspension with new ones and the knocking will stop.
2. It is worth checking whether the clamp connecting the main muffler and the additional muffler is loose. If necessary, replace the fastening bolts and nuts. For replacement, it is best to use fasteners made of heat-resistant materials.
3. Using the wrong model of muffler with pipe bends that differ from the original spare part can lead to contact between the exhaust pipe and various components of the car: the body, the gas tank and even the suspension. Be careful when choosing a muffler.

Lowered the car - the muffler is knocking

When installing a short-travel suspension on a Priora, tuning enthusiasts often encounter a situation where the suspension beam, which has moved closer to the body, begins to touch the muffler. This problem can be solved by replacing the muffler hangers with new ones of a more suitable shape.

Loud roar at revs

If a vehicle's exhaust system loses its seal, it cannot effectively reduce the volume of exhaust emissions. In this case, the exhaust often takes on a “pseudo-sports” sound. Therefore, if the muffler growls, you should look for a gap in it. It can be on the muffler body or on the pipes. It makes sense to check the connections and their fastenings. If the metal from which the muffler is made is of low quality, the exhaust pipe may burn out due to temperature. Time, corrosion and the quality of domestic roads cause damage to the exhaust system.

Pressure and temperature can cause holes

A burnt or broken muffler is easiest to replace. If depressurization occurs at the joints, you can limit yourself to replacing the sealing ring and the necessary fasteners.

Is there an alternative

Will Priora work without a catalyst? Of course it will be! The absence of a catalytic converter will not affect its performance in any way, as some “experienced” craftsmen claim. Yes, the car will no longer meet established environmental standards, but it will not work any worse.

If you don’t want to spend money on a standard catalyst, you can always buy a universal device, which will cost you half the price, taking into account installation. Essentially, it is the same catalytic converter with the same functions and similar design. And they are produced mainly in the same factories as the original ones, and their price is lower due to the absence of various trade markups.

Well, if you want to easily tune your Priora, buy a good flame arrester for it. It is installed instead of a catalyst. With it, the engine power will increase due to improved exhaust gas flow, and the sound of the power unit will acquire sporty notes.

Exhaust system tuning stages

Let’s first look at the spider 4-2-1 or 4-1, it doesn’t matter. The spider, unlike the catalyst, is completely empty inside; one, two, the design of the spider is welded in such a way that the exhaust gases exiting, each passing through its own channel in a 38mm pipe, then connected into 2 pipes 43mm and then all into one 51mm, or for high power on a 60mm pipe. That is why it received the name PAUK 4-2-1, that is, all exhaust gases exit without any resistance, and moreover, in pipes with a diameter larger than the standard manifold. Thus, we get an increase in power, or rather, reveal the potential of the engine.

The next item is a direct-flow resonator. Many people think that there is no point in changing it: “I’d rather install only a spider and everything is OK,” but we should not forget that 10-12 hp. we get it only when we install a complete exhaust kit including a resonator and muffler. Why don't we recommend installing a spider without a resonator? The first is problems with installation, since spiders are manufactured specifically for their own resonator, which means installation with a standard one requires welding. Secondly, the diameter of the standard resonator is 48-51mm and the tuning is 51-60mm. In addition, the standard resonator dampens the potential of the motor since it also contains some kind of filter and flame damper, but the direct-flow resonator has no filter - there is only a flame and a sound damper, which again allows the gases to escape without resistance.

So we got to the muffler. Many people believe that by not installing a spider and a resonator, but by replacing only the muffler, this is tuning the exhaust, which means that “the car is crazy about it.” We hasten to destroy this myth. NO – one muffler will not make cars run better, but will only change the sound, which will be of no use in terms of performance, because All engine choking occurs even earlier in the exhaust catalyst and resonator. This is comparable to festive pipes, which must be blown as hard as possible, until they turn red, so that sound can come out of them. In a muffler, again, it all comes down to resistance and pipe diameter. It is still possible to assemble the exhaust without a muffler, but it is better to do this on the Priora and Grant, where the standard pipe diameter is 51mm. Here the sports muffler does not provide much power, but on 2109, 2110 and 2114 it is better to change the muffler as well, since these cars have a 48-pipe system. A straight-through muffler carries 1-2 hp, but they can add a sporty sound and good appearance.

Let’s consolidate the information and destroy a couple more myths. If you start tuning the engine, then start with the exhaust system and install the complete kit. And the only thing you can think about is the muffler. As for myths, many say, and in particular people over 35-40 years old, that by exhausting you reduce the life of the engine, the rings on the pistons wear out and the consumption increases, all this is just a “MYTH”, all the listed disadvantages have no connection with tuning the exhaust system, they relate only directly to the driver and driving style.

In general, tune your engine, starting with the exhaust system, which costs little money, but gives a great start to understanding what exactly you want from the car. And if you have already increased the power and this was not enough for you, try visiting the gearbox tuning section