Until the moment when the engine swallows another portion of air, the air filter must effectively remove dust and oil vapors from its flow. Physically, this is possible if the air flow interacts with a surface capable of capturing micron particles and even molecules of oil, sulfur, smog, water vapor and bitumen.
The larger the surface, the better the effect and the higher the cleaning quality of the air filter. The fundamental difference between a standard “air vent” and a “zero” one is the implementation of the filtration principle, namely, it acts like a sieve, retaining everything in the thickness of the porous fibrous material that is larger than the geometric dimensions of micropores. Whereas the filter of zero resistance takes dust from the flow due to the adhesion of particles to the surface of the filter element.
In this sense, the efficiency of a zero-resistance air filter is no higher or lower than a conventional air filter with an equal area of the filter element. In theory, a zero resistance filter implies the absence of air flow energy losses associated with air fluctuations in the intake tract, redistribution of the dynamic pressure of the air flow in the intake manifold at high speeds.
Among the advantages voiced by manufacturers of various zero-resistance filter models, as a rule, are:
- power increase of at least 5% for a standard engine, without making changes to the engine design;
- the possibility of restoring the functional properties of the device, including by impregnating the zero-resistance filter with a special composition;
- changing the inexpressive noise of a conventional engine to a bass rumble characteristic of heavy-duty motors.
Important! Of these advantages, only the third can be really controlled. Such a specific advantage is rather designed for the vivid imagination of young, novice motorists who want to make their car more attractive by all means.
Structurally, a filtering device of zero resistance is usually performed according to a direct-flow scheme - with a minimum of turns and elements that can cause the formation of air turbulence. Conventional filtering device is designed to evenly distribute the air flow falling on the filter insert. Thus, the load on the tissue membrane is leveled.
Zero resistance air filter efficiency
A decrease in the resistance of the filter element is equivalent to an increase in the air flow velocity and, as a result, should lead to an increase in the filling ratio of the cylinder with an air-fuel charge. And this is true. Instead of a standard device, you can install a zero-resistance air filter with your own hands and get a noticeable increase in power. The engine will be easy to start and pick up speed, but only if the engine is single-cylinder and designed to operate at constant speed, for example, in pump drives or power generators.
For a conventional four-cylinder car engine, installing a zero-resistance filter instead of a regular one is meaningless, otherwise automakers would have long completed their engines with zero-resistance filters at the factories. Why, then, is a common air intake for all four cylinders used in this case. The answer is clear - this option is easier and cheaper to manufacture, and most importantly, all cylinders receive a guaranteed uniform composition of the air-fuel mixture, which eliminates numerous alignment problems.
The main problem is not the operation or resistance of the air filter element, but the correct setting of the entire intake manifold. Due to the use of one intake (suction) pipe for supplying air to four cylinders, the air flow in the intake manifold moves unevenly, with swirls and waves.
By removing the filter element from the air box, you may notice that for some time the engine will run faster, but only in one small rev range. Usually these are idle and slightly higher - 1000 rpm. Especially if the filter is already quite clogged with dust. But after a few weeks, dirt and dust particles will migrate into the oil pan and compression rings, dramatically increasing oil consumption due to poor oil quality and poor ring performance.
Do-it-yourself zero-resistance air filter
The cost of such a filter is relatively low, and you can check its effectiveness by installing a zero-resistance filter with your own hands on a car.
For this you need:
- get rid of the old filter box and air duct;
- make an adapter for attaching a new filter from improvised materials;
- choose the location of the “nulevik” away from the hot exhaust manifold and spray raised by the front wheels.
The filter of zero resistance is fastened with an ordinary metal clamp.
Important! If the desired effect is not achieved as a result of modifying the filter system, do not refuse to use an air filter of any design. This is extremely important for the operation of the engine of any machine.
The Internet is full of enthusiasm from motorists, confirming the effectiveness of using the “zero resistance” effect on their own equipment.
The simplest air filter of this type can be made from the standard version of the "air vent" with the help of some improvements. For example, you can use the Zhiguli "pan" by modifying it in the following order:
Important! For carburetor engines, it is highly undesirable to work without a filter that creates an additional vacuum in the air stream. Otherwise, the air-fuel mixture turns out to be leaner in gasoline, power decreases and the air jets of the carburetor become clogged with dust.
A more advanced model for using the principle of zero resistance is to install its own manifold with an air receiver and filter on each cylinder. This option is widely used in aircraft and sports engines. Cars that have undergone professional tuning of the engine are easily recognizable by the characteristic four pipes of air intakes, brought out through the front grille of the car. Setting up the operation of such a motor is not an easy task, but quite real.
Does it make sense to wash the zero resistance filter
The idea of cleaning the air with oily surfaces was widely used about 40 years ago in automobile internal combustion engines running on low-octane gasoline, with a low liter capacity. In addition, gases from the oil crankcase ventilation system saturated such an air filter with dirt and moisture, which led to the need to periodically flush out the cavity with gasoline or kerosene.
Subsequently, such a scheme was abandoned for two reasons:
- ordinary oiled paper lost its ability to capture dust particles after a few hundred kilometers;
- Irrigation of the metal honeycombs of the air filter filter elements with engine oil has become unprofitable due to the ever-increasing loads on the internal combustion engine bearings and, as a result, high requirements for oil quality.
For your information! Washing the air element, both zero resistance and conventional, using an ultrasonic cleaner increases its efficiency by 12-15%. With the help of various kinds of solvents or detergents, the recovery rate will not exceed 3-5%.
The oil film eventually forms a dense, particle-clogged layer that is poorly wetted by water, even when surfactants are used. You can use another option - instead of cleaning or washing the filter surface, re-treat with oil or suspension. A new layer of oil will not hold well on the surface of the filter element, most of the liquid with dust will be carried away by the air flow into the combustion chamber. It is pointless to apply a new layer of oil if water condensate has formed in the filter. Before processing, the filter element should be thoroughly dried at 50-60 ° C during the day.
Using an air filter of zero resistance in an internal combustion engine
A similar filter design can be effectively used in turbocharged engines - in engines where air is injected using a gas-driven turbine. For example, a filter of zero resistance on a diesel engine with a turbine will be very useful.
The compressor that compresses the air is incredibly sensitive to fluctuations and turbulence in the air flow received at the inlet. For stable operation of the turbine, the air flow must be thoroughly cleaned of dust and stabilized from turbulence and disturbances by a special guide vane. In this case, zero resistance is quite justified.
Learn more about zero-resistance filters in the video.
When tuning the engine, a large amount of intake air is required and a zero filter is needed. Let's tell you what it is and what it gives in comparison with the filter element.
What is it needed for?
The main function of a standard air filter is to purify the air and keep dust out of the engine. But, getting effective filtration, we lose power. Paper elements offer a lot of resistance to airflow because the material is dense. The greater the resistance, the greater the power loss. It is especially noticeable when the filter is “clogged”.Zero resistance filter - a replacement for the standard one, which allows you to reduce the intake resistance without reducing the filtering capacity and increase engine power. This is due to a special material that has less air resistance. Accordingly, more air enters the engine, power is higher. So you can add "a few horses."
In most "nulevik" gives a power increase of about 3-5%. A person cannot physically feel the difference in power less than 5 hp, and the dynamic characteristics are almost imperceptible. So, more figures on paper than reality will be able to amuse pride.
Is there any sense?
It is a misconception that if you remove the air filter and its housing, the power will increase significantly. This is wrong. The fact is that engineers calculate the operation of the motor, taking into account losses in the filter. From a practical point of view, an engine that gets dust in it will not last long. An air filter barrier is required. It is possible to reduce the flow resistance by increasing the through holes, that is, slightly worsen the filtration quality.Remember: if the car does not have a sports engine, it is not advisable to spend several thousand rubles on a “nulevik”. Installing on a stock engine is just a beautiful thing under the hood.
Another thing is if you comprehensively modify the engine with the installation of sports camshafts, cylinder bore. Then the null filter is appropriate. Also, together with it, an increased throttle valve is installed, which will give the greatest effect in increasing the return on the intake system of the machine.
Advantages
Firstly, increasing power without reducing the purity of the air. The filter has a complex configuration that provides low resistance, but at the same time effective filtration, protecting the intake system from clogging and the engine from wear.Secondly eliminates the need to change the filter every 10,000 km. It is easy to clean, washed with a special composition and restores its original properties.
Third, after installation, there will be a little more unique noise and a few additional “horses”, as well as torque at medium and low revs.
To obtain a real increase in power and torque, it is necessary to dismantle the standard housing assembly with the filter insert. Next, put a cone filter of zero resistance on the mass air flow sensor or on its nozzle, which is selected according to the diameter of the seat.
How to follow?
With the purchase of a zero filter the motorist is obliged to regularly rinse and impregnate it with a special solution. Moreover, it is necessary to process it while maintaining a certain technology, which is difficult to compare with the simplicity of the “pick-and-place” operation. You can’t forget about periodic maintenance, otherwise the car will become “dull” and “gluttonous”.The filter is removed, using a soft-bristled brush, it is cleaned of large particles of dirt. Then washed with water. It does not need to dry, but you need to shake it several times to remove the remaining water. Then a cleaning agent is applied to the filter element on both sides and the "nulevik" is installed in place.
Personal experience
You have to be careful with the zero filter. The increase in power is small, but it is due to better cross-country ability, which means dust particles can get into the motor, especially if you forget to soak it. Another thing is the installation of a zero in a standard place. A huge plus is that the regular air intake system is preserved. If the nulevik "takes" air under the hood, this will not lead to anything good. The air is hot there, it is imperative to remove the air intake system away from the hot engine.It has been proven by experience that the lower the inlet air temperature, the greater the power. In the afternoon, in the heat, zero is only harmful, and in the evening you can feel the difference. It is advisable to install with an increased throttle and a cold air system. It is installed for the summer, and in the winter it is useless, if not even harmful.
Buy a good nulevik, for example, from k & n. It is of good quality, but not cheap. Damage to the motor will be minimal. And I would beware of buying Chinese analogues. It is not known how they filter the incoming air and whether they will harm.
An air filter of zero resistance, installed instead of a regular filter, is able to increase the power of the vehicle. It does not require any major modifications to the motor.
Zero resistance air filter - why is it needed?
The main task that is set before a conventional air filter is to effectively clean the air that enters the cylinder-piston mechanism of an automobile motor. The purified stream does not carry with it the smallest dust, which means it is not polluted. The need for such an element in the design of the vehicle, given this, of course, is not disputed.
But the problem is that engine power is reduced when using an air filter mounted on a car at the factory.
This knot is usually made of very thick paper that "resists" the airflow. Because of this, there is a loss of power of the "heart" of the machine, which will be the greater, the higher the resistance. And over time, the filter also begins to clog, which leads to a further decrease in engine power.
With the described problem, the zero-air filter, which has a well-thought-out design, can easily cope. It provides the ability to reduce the level of resistance to airflow at the inlet. At the same time, what is important, the filtering potential of such a product is not reduced. It is clear that fans of fast driving do not deny themselves the pleasure of adding a few extra horsepower to the engine of their car.
What gives a zero air filter - the real advantages and disadvantages of its installation
The benefits that motorists get by installing a zero-resistance air filter:
- effective wear protection of the piston system;
- protection against blockages of the intake system;
- increase at low and medium speeds;
- no need to regularly replace the standard filter element, which, according to the recommendations of automakers, should be changed every 15,000 kilometers of the vehicle;
- restoration of the initial characteristics of the zero air filter after its washing and treatment with a special solution;
- ease of installation (the standard air filter is dismantled together with the insert part, and a new one, suitable in size to the landing zone, is placed on the air flow indicator pipe or directly on the indicator).
At the same time, the real increase in car power when installing the "zero" is, as a rule, about 5 horsepower. It is clear that the driver is unlikely to be able to feel such a difference. In addition, the zero filter requires careful personal care.
How to care for the air filter-zero?
Every 10,000 kilometers it must be washed using a conventional soapy composition, and then impregnated with a special agent, which is necessary in order for the filter to attract dust to itself with high quality. Maintenance of the "zero" is performed as follows:
Almost all motorists have a desire to increase the power and dynamics of their car. At the same time, everyone uses their own methods, based on their capabilities and level of knowledge.
Some optimize the engine, others install various body kits and spoilers, others use high-quality “consumables”, and so on.
But experienced car owners know about another popular method - installing a zero resistance filter.
So what is this device? What are the differences between "nulevik" and standard filters? Does it make sense to spend money? Let's figure it out.
What is a zero resistance filter for and where is it used?
The task of the air filter installed in each car is to clean the flows entering the engine from various “garbage”. But here the “stick” is at two ends.
On the one hand, installing a filter allows you to clean the air, and on the other hand, it creates additional resistance to the flow.
The result is a decrease in power, which is especially noticeable as the filter element gets dirty.
Zero resistance filter is an alternative to the classic filter. The main purpose is to reduce the overall air resistance without compromising the quality of cleaning.
It is believed that the installation of such a filter allows you to achieve an increase in engine power by an average of 5-7%. At the same time, it is almost impossible to feel the difference from the installation. There are only facts to be believed.
Nuleviki are actively used on sports cars for the same purpose - to add power to the power unit. At the same time, any alternatives are not even considered.
But it is worth considering that the difference between sports cars is not only in the installation of a special filter, but also in a more advanced exhaust system that allows the release of large volumes of exhaust gases even at maximum speed.
How is it different from other types of filters?
The main difference between the "nulevik" lies in its design. Classic filters installed on most cars are made of paper (more precisely, from compressed fibers).
The flow of air masses passes through small holes in the fibers, and then goes to the motor.
As soon as the fibers become clogged, the resistance also increases, because the air needs to find new ways to overcome the obstacle. If nothing is done, then the engine power drops.
Based on current standards, the filter paper should be thicker with maximum fiber compaction. With this design, high-quality cleaning is ensured, but the resistance is already too high immediately after installation.
The design of the "nulevik" is based on the principle of resistance reduction.
At the heart of the device are several layers of cotton, which effectively trap dust and dirt. In this case, the retained particles, in fact, become part of the product.
Due to this, the efficiency of the filter element is higher and one square centimeter of surface receives more dust than its predecessor.
The cotton cloth is sandwiched in an aluminum screen, which increases the filtering surface. The developers claim that the working part of the "nulevik" is 4-5 times larger than in the classic filter, which ensures a long service life and less resistance of the product.
This is achieved due to another factor - the presence of a special coating (oil) on the cotton, which traps dirt without harming the flow.
The principle of the filter, its features
The principle of operation of the "nulevik" is based on two factors:
- high-quality cleaning of the flow entering the motor;
- minimum air resistance.
The effectiveness of the zero resistance filter is due to the unique design and the use of cotton (rather than paper) material.
The incoming stream is filtered from dust without much contamination for the product. Thanks to a special impregnation, particles entering through the filter settle on the surface and do not interfere with the flow of air to the combustion chamber.
As a result, a sufficient amount of air enters the intake manifold, and the power of the power unit increases.
Advantages and disadvantages of "zero"
As practice shows, such filters have their positive and negative qualities.
Let's start with the pros:
- increase in power by 5-7%. Of course, this may not be noticeable to the driver, but when installed in combination with other types, the result can be felt for yourself;
- change in the sound characteristics of the motor. It is believed that the filter element makes a special sound, which changes the overall rumble from the engine compartment. Many motorists install "zeros" for this very reason;
- the appearance of the space under the hood changes - it becomes more sporty.
Cons of "zero":
- the need for constant care, which not all car owners like to do;
- Affordable filters are of poor quality, so they clog almost immediately. The oil also gets dirty faster, which leads to a decrease in the resource of the power unit.
How to take care of these filters?
As already mentioned, one of the main disadvantages of the filter is the need for regular maintenance.
After purchasing and installing the product, it must be washed and processed regularly. At the same time, processing according to the principle “removed-washed-installed” will no longer work - a special algorithm is required here.
The frequency of flushing is every 5-6 thousand kilometers. If the car is operated in areas with high dust content or off-road, then it is necessary to clean the filter more often.
If you forget about servicing the device, then the car becomes “gluttonous” and “dumb”.
The algorithm of actions is as follows:
There are even special kits for caring for “nullers”, which include washing and impregnation. A few manipulations that are described above, and the product looks like new.
Please note that the total number of washes may be limited to around 20. After that, it is worth installing a new filter.
Installation Features
Many motorists make a big mistake - they incorrectly set the "zero" because of which he is not able to perform his functions normally.
For example, the filter is installed too close to a hot engine or exhaust manifold. Here it is time to remember physics.
The density of cold air is higher than that of hot air. As a result, cold air is easier to "shove" into the combustion chamber than hot air.
Therefore, the “nulevik” should be located as far as possible from any heat sources (motor, exhaust manifold, etc.).
In addition, a dirty filter will have to be “repaired”, which will also take some time.
Today there are many models of zero filters that are designed for mounting on various types of cars - with an injector or a carburetor.
The material can be mesh, foam rubber or cotton. Foam rubber filters have the highest degree of purification, but they also have more resistance than their “brothers”.
Installation of the “nulevik” on different cars is done in different ways, but in general, you need to follow the following algorithm:
- discard the connector from the DMRV (mass fuel flow sensor);
- use a screwdriver to disconnect the rubber tube from the MAF;
- remove the sensor fasteners from the housing (for this you will have to unscrew a couple of bolts);
- dismantle the case and remove the rubber clips (use platypuses or pliers);
- unscrew the mount from the group of wires;
- fasten a couple of bolts from the DMRV retainer to the “nulevik” fastener;
- put a new filter on the DMRV, stretch the clamping clamp and connect the sensor.
That's all, the new filter is installed on the car.
How to make a zero filter with your own hands?
Some motorists, in the desire to save money, decide to make a “nulevik” with their own hands.
As a source, a factory round filter is used, which was once mounted on Moskvich cars.
To make a "null" you can use different methods. We will describe one of them below.
You will need improvised tools (foam rubber, sealant, sharp knife, glue, and others). The total price of the issue is no more than 3-4 US dollars.
It should be noted right away that the converted “nulevik” is unlikely to add power to your car. The reason is outdated technologies that were used in the production of cars in the 70s and 80s.
When creating filters, manufacturers thought little about the importance of cleaning, so old products only trap very large pieces of dirt. So, by "creating" a zero filter, you are taking a certain risk and can "kill" your engine.
By the way, the only car where such a zero filter will have to “go to court” is Moskvich. At the same time, there are owners who immediately cut the walls to eliminate excess flow resistance.
If you still decide to experiment, then the sequence will be as follows:
- remove the standard device;
- from a piece of plywood, make a rectangular adapter with a hole.
Drill four more holes and fix the adapter to the air meter sensor.
Before that, install a piece of pipe in the hole and seal the cracks with sealant;
- make additional holes in two circles of plywood. At the same time, on the outer circle, make a hole of a larger diameter, and on the inner one (installed near the air meter) - according to the diameter of the pipe being installed. The latter shrinks with a sealant;
- make 3 bars with a length of about 16-18 centimeters and use them to fasten the circles. The result is a kind of cylindrical figure. Since there is no plywood in the bars, it is necessary to make holes around the edges for mounting self-tapping screws (otherwise the plywood may be damaged);
- to prevent foam rubber from falling out, make a case. For its manufacture, you can take a mesh for GVL joints. The advantage is the presence of a sticky base, which will allow you to immediately fix it;
- after that, foam rubber is glued from the outside with the help of a thermosealant, which allows you to securely and quickly fix the device;
- fix with a sealant a couple of pieces of foam rubber for the side of the barrel;
- put on foam rubber and fasten the plywood bars with ties.
The zero resistance filter is a detail that adds to the car engine when tuning. These elements are quite accessible to the consumer and are easily installed in the motor. They come in a variety of designs and look great too. Studying all the pros and cons of a zero resistance filter, you can decide on the need to install it on a car engine.
If you want to add a few "horses", then know that almost every process of refinement and tuning of the engine does not pass without a trace. And in the general plan of the totality of processes, this is a noticeable increase in power indicators. Any engine tuning is not complete without improvements to the air supply system, on which the efficiency of the motor depends. The zero resistance filter, reviews of which are mostly positive, due to its excellent ability to pass air, affects the formation of the fuel-air mixture.
Purpose
Simply put, the main function of any air filter is to remove various unwanted impurities. This element must protect the piston group and cylinders from possible ingress of dust and moisture into them.
At the same time, having a good car loses its power. Due to the dense paper, the flow of consumed air encounters serious resistance and passes through the filter worse. Therefore, with high resistance, the power of the power unit is also lost. And at the moment when it becomes clogged, the fact of the loss of power indicators is especially noticeable. The zero filter has a certain design that contributes to high-quality air purification, but at the same time significantly reduces the air flow resistance at the inlet, which, in turn, contributes to an increase in power. As a rule, the installation of a zero resistance filter occurs on all sports and racing cars in order to add a few extra horsepower to their engines. Considering that this element of engine equipment can be easily purchased at auto parts stores, many motorists install zero filters on the engines of their cars.
Keeping it in good condition
Like any other element, this filter needs to be cleaned. To do this, it must be dismantled and, using a special brush, carefully clean all surfaces of the element. Next, you need to apply a special cleanser to the surface of the filter and hold for ten minutes until it is completely absorbed. After that, the filter element should be washed and rinsed under running water.
When operating a car in normal climatic conditions, flushing is recommended every ten thousand car mileage. When using transport in less favorable conditions, cleaning is carried out every five thousand. After flushing about twenty times, the element should be replaced with a new one, since the working resource is completely exhausted.
Advantages of the zero resistance filter
Increasing the amount of air flowing through it provides the power plant with more oxygen needed for normal combustion of the fuel mixture, which ultimately increases power.
It should be noted that by installing a zero-resistance filter on a VAZ, one should not expect a decent increase in power. On engines with a small displacement, the increase in power indicators is almost imperceptible, unless, of course, we consider diagnostic indicators in digital equivalent on special stands. And, for example, on units with a volume of 3 or more liters, the factor of increasing dynamic performance is quite noticeable, it is on such engines that all the positive qualities and advantages of such an air purification element are revealed.
The second positive quality of the filter can be called a change in the sound of the engine coming from under the hood. Due to the design features of the nulevik, a sound characteristic of sports cars is heard.
The appearance of the engine also changes. Some motorists install such an element precisely because of the aesthetic appearance and aggressive sound.
Flaws
The disadvantages of a zero-resistance filter are minor, but they still exist. Firstly, it is the need for constant care of the condition of the filter element. The second negative factor can be called poor-quality air purification from impurities. Often this can happen if the element is inexpensive and of lower quality than expensive counterparts.
Pros and cons of a zero resistance filter at a VAZ
One of the easiest ways to tune VAZ cars is to install a zero filter on the engine. At the same time, the price of the issue is not very high, and the installation can be done independently. You can mount a VAZ-2110 zero resistance filter on the motor as follows. First you need to disconnect the rubber pipe from This can be done using a regular screwdriver. Next, you need to dismantle the sensor mount from the standard air filter housing and remove the element itself. Then you need to disconnect the negative wires from the cylinder head. We fasten the mounting bracket to the engine housing. We fix the air sensor mounting bolts to the filter mounting bracket. We install the sensor on the part, and finally connect the air sensor connector. How does the zero resistance filter look in the engine compartment?
Photos indicate that this device fits perfectly into the overall appearance of the power unit and gives it a certain aggressive character.
K&N filter
Products of this manufacturer are firmly established in the automotive market and have a huge number of their admirers.
The K&N zero resistance filter was developed in California by the company of the same name to help increase power ratings. According to their characteristics, the products of this manufacturer are in many respects ahead of their counterparts of competitive firms. According to the developers, its installation on the engine will increase the power output by as much as four "horses". The element can be used for a long time, and when operating a car in ordinary urban conditions, it can be cleaned only after 80 thousand km of the car run.
K&N is made from the purest cotton.
The main parts of the element consist of several layers of cotton, which are located between two aluminum plates. To improve the performance of the filter, it is impregnated with special oil, and its design features ensure durable and reliable operation on any engine.
All products of this manufacturer have a warranty period of service, which, according to the company's engineers, is one million miles.
Kinds
There are two types of zero filters, which differ in geometric shape and installation method. The first are cone-shaped. This type of filter is very effective, as it is located under the hood without an additional protective cover. Also, its advantages increase with the use of smooth pipes with a minimum number of bends, in contrast to corrugated ones. The second - elements installed in a regular seat.
Installation
How to properly mount a zero resistance filter? Reviews of motorists say that for this it is desirable to choose the “coldest” place under the hood of the car. This is to ensure that the incoming air is as cold as possible.
It is undesirable to place the filter next to the radiator and exhaust manifold, because of this, the efficiency is significantly reduced.
To protect the element from possible contact with engine oil, it is recommended to install a protective cover on it.
What is the result?
Having considered the pros and cons of a zero resistance filter, the car owner will decide on the installation of this element. If, nevertheless, you decide to equip the engine of your "iron" friend with a filter of this design, then the selection and installation of the null should be carried out with the correct approach to this procedure, so as not to damage the state of the power unit. Professional racing cars are equipped with such a product as a standard, because on their powerful engines its effect is very noticeable. When driving a car at high speed, the air flow creates a swirl in the intake tract, almost turning into a small hurricane. Due to this factor, a vacuum moment is created in the system, which the zero filter does an excellent job of straightening the air flow.
At the same time, the probability of dust getting into the engine cylinders is very high. For racing cars, this is not essential, since after almost every competition their engines are repaired and the piston group is replaced.
Conclusion
The pros and cons of a zero resistance filter depend on the quality of workmanship and the materials used in their manufacture, on the type of the product itself and the car engine. Therefore, the final decision on the installation depends only on you.
