Will a lighter pulley improve the horsepower of the car?
Change the air filter The most basic job of an air intake system upgrade is to switch to an efficient, high-flow air filter cartridge. Changing the high flow of air filter can reduce the inlet resistance of the engine while improving the engine's intake and volume efficiency. At the same time, the increase of air flow meter to measure the volume of oil supply system, the signal will be sent to the oil supply computer ECU, the ECU will control injector spewed more fuel to cooperate, make more oil and gas into the cylinder, so as to improve the output power of the engine. If change the filter still cannot meet the requirements, but to replace the air filter assembly with filter appear type filter (commonly known as' black mushroom head), further reduce the intake resistance, enhance the engine? Quot; Lung capacity '.
Charging efficiency Charging efficiency is to point to each of the intake stroke by inhalation of air quality and standard conditions (1 atmosphere, 20 ℃, density of 1.187 kg/m2) has a cylinder piston stroke volume of the ratio of dry air quality. When the air pressure is high, the temperature is low and the density is high, the gas efficiency of the engine increases.
Volumetric efficiency refers to the ratio of the volume of air drawn in the cylinder to the volume of the cylinder piston in the standard atmospheric pressure of every inlet. Because of the air into the cylinder, the pressure inside the cylinder is lower than the atmospheric pressure outside, and pressure value will be change, so the volume under the condition of normal atmospheric pressure as a common standard. Due to the effect of high temperature of the air intake resistance and cylinders, the conversion will be drawn into the air cylinder volume under standard atmospheric pressure condition, must be less than the volume of a cylinder, so naturally aspirated engine's volumetric efficiency must be less than 1. Reduce air intake resistance, increasing inlet pressure, lower inlet temperature, reduce exhaust back pressure, increasing inlet valve area can increase the volumetric efficiency, while at high engine speed will reduce the volumetric efficiency during operation.
Volume efficiency and aeration efficiency When the engine is running, the amount of air that can be obtained per cycle is the fundamental factor determining the engine's power size. Engine capacity is measured by the capacity of the engine and the efficiency of the gas.
The engine inlet system is a permanent part of the car refit, and the novice enthusiast can start by knowing the basics. The engine inlet system includes air filter, intake manifold, inlet valve and so on. After air filter to filter out impurities, air flows through the air flow meter, through the inlet into the intake manifold, and the fuel injector spit out the appropriate proportion of gasoline blend to form combustible mixture. By entering the valve entering the cylinder to ignite the combustion, the engine is generated.
