When it comes to tofu brain, friends in the north and the south always argue whether tofu brain should be sweet or salty, just as the United States is divided into "Democratic Party" and "Peace Party" and "Sweet Party" and "Salty Party", and there is no result in the end. There is a similar partisan struggle in the automobile field. The topic of "turbocharging" or "self-priming" is endless. The gorilla in TopGear said that "only bitches can turn on turbocharging", but some people retorted that "the only thing really powerful is natural inhalation with large displacement. Now in the global environment, where you can get large-displacement natural inhalation, turbocharging can achieve small displacement and high power. "

First of all, on the premise of knowing who is good and who is bad, first introduce the difference between turbine and self-priming. The biggest difference between the two is the difference at the air inlet. The turbine engine is equipped with a machine similar to an air compressor at the intake end, also known as a turbocharger. It can compress a part of the air when intake, and then transport it to the cylinder at one time. After the gas is pressurized, the cylinder can burn more air mixture at the same volume, just like when people have a large lung capacity, they will be more energetic and accelerate more than cars.

Natural inhalation refers to the negative pressure generated in the cylinder after the engine works, and the air is naturally inhaled by using the pressure difference. Such air pressure is naturally not as high as that of a turbine. Because more air is inhaled and the combustion is more complete, the power performance of turbocharged engine is equivalent to that of naturally aspirated engine whose displacement is about 1.3- 1.5 times.

Back to the driving level, naturally aspirated engines have simple structure and low technical requirements, so the engines of early domestic cars are generally naturally aspirated. Within the legal speed limit, the naturally aspirated engine has roughly the same power performance, stable acceleration, average and linear force, and the power is as large as the accelerator pedal, so the driver can make the car run smoothly.

The turbocharged engine will not work until it reaches a certain speed, and the turbine will "suppress" the air. This condition is called "turbo lag". It is precisely because of this blank time that when driving a turbo car, the engine will step on the accelerator deeply for 1-2 seconds, the power will be transmitted to the wheels, and the acceleration will suddenly increase.

Simply put: natural inhalation is like a hot ball rising slowly into the sky. Turbocharging is like a soaring fighter, both of which can fly to the same height, but the time required is different. However, with the gradual optimization of manufacturers, the lower the speed required for turbocharging, the less the lack of low starting torque, and the driving feeling is close to the traditional natural inhalation.

In terms of quality stability, natural inhalation will be better, because the structure of natural inhalation will be simpler, the research and development time will be longer and the technology will be more mature. Turbocharging increases the combustion pressure in the cylinder because of the high air pressure, which makes the test of piston ring, cylinder gasket and cooling system more severe, just like people working in harsh environment for a long time, even the strongest body will get sick. Therefore, the turbo car will drive well and pay higher maintenance costs at the same time.

The confrontation between turbine and self-priming is easily reminiscent of German cars and Japanese cars. Like Volkswagen, if you want to buy its naturally aspirated car, you can only choose a low-profile model. On the contrary, if you want to find a turbocharged car, you can only choose 1.2T Corolla. This is not because Toyota technology is not too difficult to manufacture turbines, but because the two companies pursue different directions. Volkswagen tends to try new technologies, and new technologies are often accompanied by instability, which leads to the second generation EA888 burning engine oil and DQ200 gearbox burning clutch plates on Volkswagen's body. Japanese brands such as Toyota are more keen on pursuing quality stability and higher thermal efficiency, and there is a slogan that "Toyota cars can't be broken".

In recent years, the emission regulations have become more and more strict, and it has only been a few years since the launch of the "National Five" and entered the "National Six" era. Turbocharging is easier to reduce emissions than natural inhalation, which is why major car companies give up natural inhalation and develop turbocharging instead.

See here the answer is clear, natural inhalation and turbocharging have nothing to do with who presses who's head, but choose according to their own life scenes. If you drive hard and have a quick temper, there is no doubt that turbocharging is your dish. On the contrary, if you just buy a daily car and drive Buddha, there is no requirement for power, then natural inhalation is obviously more suitable for you.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.