What is the filter used for?
The air contained in the atmosphere is vital for an internal combustion engine. The quality of formation of the air-fuel mixture and the completeness of its combustion depend on the amount of air entering the engine. If a larger volume of air enters the engine, a larger amount of fuel is required to form the correct mixture. This leads to increased energy release, and consequently to increased pressure on the piston, increased power, and temperature.
As the rotation of the crankshaft increases, it becomes increasingly difficult for the air entering the engine to overcome the resistance of the air filter.
Based on this, two simple conclusions can be drawn:

— With minimal crankshaft rotation, air filling depends on the throttle position;

— At maximum speed, when the throttle opening is 100%, filling is determined by the following factors – structural features of the intake system, the design of the receiver and its settings, and the throughput of the air filter.
Thus, a zero resistance filter is used to facilitate more air into the intake system. Its use is a kind of middle point between the quality of incoming air purification and reduced resistance at the entrance to the intake tract.
Zero resistance filter. What is
A zero-resistance filter is made from foam rubber (with large pores) or cotton fiber. A special oil impregnation that envelops the cells of the filter element is an important part of this filter. It provides the necessary filtration.
Unlike a standard air filter, a zero resistance filter requires constant attention. It is necessary to monitor its condition and regularly service it. Depending on the state of contamination, it is necessary to wash and impregnate it.
Filters with zero resistance. Their advantages and disadvantages.
The advantages include:
— A slight increase in engine power when necessary work is carried out on the exhaust system;
— “Thoroughbred” sound from the engine compartment;
— A more “sporty” look of the space under the hood.
The disadvantages of its installation include the following points:
— Increased engine output;
— Accelerated failure of the mass air flow sensor;
— Difficulty of maintenance.
Before installing it on a car, you need to think carefully about the appropriateness of its use on the car.

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