Turbocharged or Naturally Aspirated Which is Better？
Needless to say, naturally aspirated has a higher average score than turbo in terms of technical reliability and durability, but that's only one aspect. I have said many times that if we only focus on technical reliability, then our products do not need to be updated, the most reliable is the old technology that has been tested by the vicissitudes of life.
However, the auto industry should pursue it. The industry hopes to make the engine have more horsepower, higher fuel efficiency, more driving pleasure...and the emergence and application of turbocharging technology. Consumers also have the above pursuit.
Combined with the performance of several long-term test cars, let me talk about the overall difference between turbocharged and naturally aspirated.
1) Naturally aspirated engines are easier to do well. Quiet and smooth idle, cold crank noise and smooth running, naturally aspirated engines generally do better. After all, the turbo engine has more "peripherals", so it is not easy to do in terms of smoothness and quietness (of course I am talking about the comparison of more than 200,000 in the same car, millions of high-end car turbo engines can do well, that is, wood applications).
2) The turbo engine accelerates better. This is because the lung capacity of the turbo engine is greater, and people with large lung capacity are of course more energetic. The power of a turbocharged engine can generally reach the level of a naturally aspirated engine, with a displacement of about 1.3 to 1.5 times. But that's just average. In terms of actual performance, the "stamina" of a turbocharged engine after 3000 pm will be stronger than that of a naturally aspirated engine, and some excellent turbocharged engines can provide an exciting "climax". Relatively speaking, even if the stamina of the naturally aspirated engine is there, it is not so exciting.
3) The power retraction of a naturally aspirated engine is easier to control. It is mainly manifested in the force output when the accelerator is finely manipulated. For example, if you keep the throttle open, a naturally aspirated car will have smoother acceleration and a gentler acceleration; a car with a turbo engine will be the star. The variable output fades to peaks. That difference tends to narrow, though, with some naturally aspirated engines having more power fluctuations, while some turbo engines have been tuned for a very even output. But sometimes you can still see their innate characteristics, such as when reversing on a steeper slope, when driving a naturally aspirated car, it is easy to find a throttle position that allows the car to develop smoothly and finely, while the turbo In a supercharged car, at high speed, this accelerator position is difficult to grasp, and it is often necessary to step on it and release it. That said, turbocharged cars are significantly less linear at very low revs than naturally aspirated. This phenomenon not only occurs in turbocharged vehicles of more than 100,000 yuan and 200,000 yuan but even some advanced large-displacement turbocharged vehicles cannot be avoided.
4) Are turbo engines more fuel-efficient or more fuel-efficient? I believe many people will be confused about this question because many manufacturers have mentioned the economy and fuel efficiency when promoting turbo engines. Turbocharging technology itself is born to squeeze high horsepower. Under the limited displacement limit, obtaining power output beyond its displacement is the starting point of the birth of this technology. Therefore, compared with the same displacement, the fuel consumption of the 1.8T turbocharged engine must be higher than that of the 1.8L naturally aspirated engine. Now, however, people have changed their minds and are comparing them to the same power output rather than the same displacement. Due to the smaller displacement of a turbo engine, it may outperform a naturally aspirated engine of the same power level when the turbo is not working at full capacity. More fuel-efficient. That is to say, the fuel consumption of a naturally aspirated engine is relatively stable, while the fuel consumption of a turbocharged engine is very dependent on the working state (that is, the driving style). Otherwise, the fuel consumption will be lower.
6) The so-called "replacement of the turbine", in many cases, not the entire turbine is broken, but only the bearing of the turbine blade is broken, because the speed of this part is very high (up to several hundred thousand rpm), the cooling will be in place. Damaged due to dry lubrication, usually, this part is damaged and the manufacturer will require replacement of the entire turbocharger assembly. This is the core issue that affects the reliability of turbocharged engines. If your car has similar problems, you can go to LandTopMall to consult professional parts experts, which may save you a lot of money. We not only supply turbos for Volvo models, but also 6bd1 turbo for Hitachi
7) The biggest difference in the use requirements of turbine engines is to achieve "delayed flameout". The turbocharger can be adequately cooled under normal operating conditions without problems. However, after the engine is stopped and the power is turned off, the cooling system cannot continue to cool the turbocharger. At this time, the turbine blades are still rotating at high speed due to inertia. At this time, the bearing will be damaged. This damage may be instantaneous or minor but will shorten the working life of the turbine over time. In response to this problem, for the daily driving of turbocharged cars, it is best to delay the flameout for a few minutes after each stop, so that the turbine blade bearings still in a high-temperature state can be cooled and lubricated, and the bearing life can be extended. This is the biggest and almost only difference between turbocharged and naturally aspirated engines. In the past, many owners of turbocharged cars would install their own delayed shutdown device (called Turbo Timer), but now the Volkswagen TSI turbocharged engine is equipped with an automatic delayed cooling system, so users do not need to worry about a completely delayed shutdown. It is believed that this technology will also become more and more popular in turbo engines.
8) Turbocharging has an advantage over naturally aspirated, that is, in terms of emission control, it is easier to reduce emissions, especially per unit CO2 emissions. That's why European automakers are stepping up to develop turbocharged engines. More car maintenance tips can be found on LandTopMall's blog, we not only turbocharged Volvo ec220d models but also 6bd1 turbocharged for Hitachi
To sum up, the naturally aspirated engine is more reliable and more complete, while the turbocharger has more advantages in various performance indicators. At this stage, the two engines are evenly matched, but as a new technology, the technical prospects of turbocharging are better than naturally aspirated. Under the guidance of the manufacturer's propaganda, I saw that turbocharged and naturally aspirated have formed two major schools, and even formed two opposing camps. I don't think everyone has to stand up to these two kinds of bullies. "The advantage of naturally aspirated is turbocharging. People who drive naturally aspirated cars cannot feel the advantages of turbocharging, so everyone should look at these two technologies with one eye. Open-minded, this is why the new car evaluation network The long-term test team had both naturally aspirated and turbocharged reasons.
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