To resort to making a forward flow on your own means to increase the traction of your car. But now the vehicle will be louder due to the splash of a powerful stream of gases. The sound will be similar to the movement of sports cars. But it is important that the “bank” does not just roar, but makes a pleasant sound. How to properly perform forward flow with your own hands and eliminate excess noise? Consider now.
What is forward flow?
If you don’t know how to make a forward flow with your own hands (photos of the work are presented in our article), then you should master the information from the very beginning of this simple process. Today, many workshops are engaged in the modernization of vehicles. And if in any city you can only change the oil, repaint your car and bring other innovations, then in more professional workshops you can recycle an ordinary car into a sports car. One of the ways to modernize is to install a forward flow.
Forward flow is the part that makes your vehicle sound. In this case, all operations can be performed independently. You just need to take a set of tools and materials. And if we talk about statistics, then forward flow can be found more on domestic cars. Innovations are usually introduced by the owners of "nines", "sixes" and other models of AvtoVAZ. Do-it-yourself forward flow to the VAZ is made quite simply. And even if the operation is carried out incorrectly, you will not lose a lot of money. If you do everything right, then the effect will greatly please you.
What is a silencer?
It is a plug that is installed to reduce the sound of forward flow. In size, this part must match the final diameter of the exhaust pipe. The silencer is taken a little smaller in size, because the plug is inserted into the “jar” itself. In addition, several bolts are used for fastening, so that if necessary, it can be removed with simple improvised tools. And if you want to carry out this procedure on a car, then such a process will not take much time.
Some features you need to know before installation
If you do not know how to make a forward flow to the VAZ with your own hands, then this is not a problem. Of course, many drivers will want to purchase a ready-made add-on, but there are several nuances here. Before you start making or installing a finished muffler, you need to study the principle of its operation and the functions of the elements.
Prior to installation, the muffler/carburetor combination works as a unit to maintain the correct amount of air inlet and outlet. When a forward flow is installed, the system is unbalanced. This can lead to further problems in the engine. The main rule that you need to know and follow is that a do-it-yourself forward flow does not give any effect other than amplifying the sound, unless other work is done to improve other nodes. This may include improving the quality of the power system in the engine, adjusting the fuel supply, air filtration and much more.
Sport and standard muffler: what's the difference?
Direct flow, made by hand, is a pipe that does not have any turns. Although in some places it can narrow and expand. In this case, the exhaust can allow the exhaust gases to fly out without any obstruction. The standard muffler, which is installed on all cars, is a system that allows you to reduce noise from gases. It is for this reason that there are many twists and turns here.
What is a muffler for?
Everyone knows that the exhaust gases after the combustion chamber enter under pressure into the exhaust manifold, and from there through the rear of the car in pipes they reach atmospheric air. At the same time, a fairly loud process is created with forward flow, and without it it will be quieter. In addition, a do-it-yourself forward flow adds up to 5 percent of power to the motor. Exactlytherefore, many are trying to install this design in order to modernize the car. It is worth noting that the volume of the sound can reach 120 decibels (this is within the legal limits).
Dignity of forward flow
Among the main advantages are the following:
- The diameter of the pipe increases, which increases the scavenging of the cylinders.
- Power up.
- There are fewer bends in the connection, which means the throughput is also increased.
- Only high-quality materials in the form of stainless steel are used in the manufacture. This allows you to increase the service life.
Design flaws
Among the main disadvantages are the following:
- Increased noise level.
- These designs usually do not have catalysts, so they cannot be used due to environmental regulations.
- Engine takes longer to warm up in winter.
- The clearance of the car is decreasing.
The main parts of the once-through system
The direct-flow system on any car will work correctly only when all the details are optimized for the model. Installing only the silencer itself will give a partial result. In general, the system will consist of the following components:
- Collector. It is made of stainless steel, which reduces weight and makes it possible to make a configuration with resolution zones. This allows you to remove the resistance to the flow of gases.
- Catalyst. This is usually replaced bysports version (flame arrester), which has an increased throughput. It is also possible to replace it with a simple pipe.
- Resonator. Here it is possible to completely remove this part or replace it with a sports one.
- Silencer. Dimensions and length will depend only on whether the resonator is worth it or not.
How to make a do-it-yourself muffler? Such a homemade muffler today is widespread among many motorists. And each of them boasts some specific installation technology. Below we describe one of the most popular options.
Required Materials
Among the basic materials and tools that you may need, we note the following:
- Iron pipe with 52 mm diameter hole. This option is perfect for Russian cars produced by AvtoVAZ.
- Welding machine.
- A grinder who can cut metal.
- Metal brush (50 pieces).
Work process
After all the materials are ready, you can start upgrading your muffler. In this case, it is important to follow the sequence of the simplest actions:
- The old muffler is being dismantled from the car. Using a grinder, a groove is cut along the length of the resonator.
- All internal elements are cut with a grinder. This will include pipes, stiffeners and much more. In this case, the pipes are cut out, leaving witheach side 30 mm. This is necessary so that the new one can be welded to the old one.
- The prepared new version of the pipe is cut to size. They should be such that the part fits perfectly into the muffler.
- Holes are made on the pipe every 20 millimeters. They can be made in the form of cuts or holes.
- The resulting notched component is welded to the ends of the resonator tube.
- Free space is sealed with brushes. You can buy them at any hardware store.
- The initially cut out part of the resonator is covered with a lid and welded on.
- The end of the muffler is cut off.
- A new pipe is installed and welding takes place.
If you decide to do a forward flow on a motorcycle with your own hands, then the procedure will be the same as for a car.
Recommendations
Very often, many experts recommend protecting the muffler, and then treating it with a primer and some kind of paint. All this allows you to increase the service life and remove all kinds of problems in the future. This must be done before installation. As a result, you get a high-quality home-made forward flow, the cost of which will be quite low.
But how to make the muffler quieter?
Quiet forward flow with your own hands cannot be done right away. Many after installing such a muffler want to make it quieter. In this case, such a simple design as a flute is used. It is a perforated pipe up to 25 centimeters long, at the end of which a washer is welded. The latter plays the role of a stub. The structure is bolted inside the forward flow itself.
How to make a flute yourself?
If you have a desire, some knowledge and skills, you can make a flute for a direct flow with your own hands using a minimum set of materials and tools. You get a fairly cheap option that will be better than the Chinese counterpart. In this case, you will need a stainless steel pipe with a diameter of 20 millimeters, as well as sheet metal up to one millimeter thick. Arc welding is best. Do not forget about safety rules.
A plug with holes made of sheet metal is welded to the pipe. Next, bolts are screwed in the amount of several pieces. When manufacturing, it is best to accurately measure the diameter of the forward flow at the cut so that the plug does not fit tightly enough, but there is no gap. It is important to remember that such a setting can also reduce engine power. After all, it will definitely not work to make the process of removing gases quieter without loss. That is why you should immediately think about whether you need this addition or if you want to stay at the same power, but at the same time constantly endure loud sounds from your engine.
Instead of a conclusion
So, we figured out how to make a forward flow. As you can see, making a homemade sports muffler is quite possible even with a minimal set of tools.
