Tuning of car exhaust system

In the modern automobile world, the exhaust system performs not only the function of exhaust gas removal, but is also an integral element of tuning. Many complete this system with their own hands. Some ask for help on SRT. In today's article, we will consider what nuances should be paid attention to by tuning the exhaust system.

Device

First, let's look at what this system consists of:

• An exhaust manifold.
• Gofra, absorbing vibration (not installed on all cars).
• Resonator.
• Muffler.
• Connecting tubes.
• Elements of fasteners (rubber bands, hooks).
• Sealing elements (heat-resistant gasket).

Exhaust Manifold Replacement

It is better to refine the system of exhausts from the collector. It is through it that gases pass for the first time after being released from the cylinders. In the common people this element is called a "spider" (for such a characteristic form of construction). It can be of two types:

• A long.
• Short.

In the first case, the pipe scheme is constructed according to the formula 4-2-1. Tuning of the exhaust system "Priora" is accompanied by the installation of a short "spider" with the formula 4-1. What does this refinement provide? Due to the more complex geometry, the gas discharge pattern changes. Practice shows that after installing a short spider, the power increases by 7 percent. But it is worth noting that this increase is noticeable only on the turnover of over six thousand. In the lower ranges, the car's torque is close to the factory torque.

Increase in diameter of pipes

With increasing power, the amount of exhaust gas also increases. If you have a turbocharged engine on the factory exhaust (which was normally designed for an atmospheric engine), you will not notice a noticeable increase in power, as the unit will "suffocate" with its own gases. Due to the small diameter of the pipes, they are not able to go out at the same speed as the air intake into the manifold. If a turbine is installed on the standard motor (or even a compressor driven from the crankshaft belt), it is worthwhile to make tuning of the exhaust system. "Chevrolet Cruise" is no exception. For comparison, you can take the factory parameters of the pipe size on cars of the same model with a turbocharged engine and without. In the first case, the diameter will be much larger. When tuning the exhaust system, it is worth remembering that the larger the diameter of the pipe, the lower its resistance to flow.

Installation of sports muffler

In the common people it is called "straightforward". This is the most popular tuning of the exhaust system. You can do it yourself. The essence of the refinement is simple - to increase the diameter of the exhaust at the end, thereby increasing the "purge" of gases. Now there are many sports silencers of different diameters and shapes. Basically, they are made of stainless steel and have a chrome finish. Unlike regular silencers, the rectilinear ones do not have separate chambers and the gas is discharged directly. In view of this, the resistance decreases. But because of the lack of cameras, sound vibrations are not damped. Therefore, no matter how quiet the straightforwardness is, it will be an order of magnitude louder than the regular silencer. By the way, to reduce the sound of exhaust, in sport silencers is used glass wool. It fills the cavity between the perforated inner tube and the stainless housing. When choosing it is worth considering this point.

Jeeps

Sometimes it is produced on the "Niva" tuning the exhaust system. Of course, it's pointless to put a straight stream here. But if it's a 16-valve engine, you can put the VAZ collector 4-1. Additionally, the pipes are recycled. On-site staff, put the elements of stainless steel. By the same principle, the exhaust system of UAZ Patriot can be tuned. What does the installation of stainless pipes? Such an exhaust system will not be corroded. And as we know, SUVs are often used in an aggressive environment. At the first dip in the ford, the factory exhaust rust. Thus, the pipes burn out a year after operation.

The installation of products from stainless steel - not aesthetic tuning, but forced refinement. As practice shows, such exhaust serves more than 10 years. Some strengthen the design of the muffler - it often breaks offroad. But the most correct solution is to install the element in the upper vehicle. In this case, the pipe will not experience high loads, shocks and deformations.

Removal of catalysts

This is another way to refine the exhaust system. And the catalysts are removed by people who are far from motorsport and who use the car for everyday use. Catalysts have a property to be clogged. They serve up to 100-150 thousand kilometers. It would seem that it is worth replacing it with a new one? But the price of the catalyst is from 40 thousand rubles. And the procedure for removing it - up to 15. Will the machine be hands-free after this? Reviews say that the car will have a factory, quiet exhaust. And so that the car does not spend a lot of fuel after removing the catalyst, they are engaged in reflashing the computer. Also, this action silences the "Chek Engin" lamp on the instrument panel. Some note a noticeable growth in dynamics. After all, after removing the clogged catalyst, the gases will be freely released outside. If this is tuning the exhaust system of the diesel, then the removal of the particulate filter is performed . The price of the procedure is the same as in the case of gasoline cars.

Errors in tuning

Making the refinement of the exhaust system it is necessary to understand that this tuning is only an addition to the basic (that is, to the sports motor). It is pointless to make a direct-flow installation on vehicles with a regular engine. Already from the factory, the exhaust system is designed for the volume of exhaust gas produced by this motor. Therefore, to increase the "purge" and reduce the resistance is reasonable only after installing the turbine or compressor. Mounting the sports silencer on a regular engine significantly increases the volume of the exhaust. At long distances drivers and passengers have a strong headache, there is a wild ringing and buzzing in the ears.

Results

So, we found out how the tuning of the exhaust system is done. Of the really useful improvements (for factory cars, which were not subjected to alterations), we can note:

• Removal of the catalyst followed by piercing.
• Remove particulate filter.
• Replacement of steel pipes with stainless steel.

Another refinement is the transfer of the muffler to a supernumerary place (on the roof - for off-road cars, or in the front wing - for sports cars used in drag racing or ring races). The installation of a short spider is only relevant if there is a high-speed motor. As for direct flow, installing it on a regular engine is more than meaningless. Any refinement with the exhaust system should be started only after the preparation of the engine itself. Only in this way can you achieve the desired result.