Why do many people always say that turbocharging is unreliable

Now for the sake of environmental protection, as well as the national policy of energy conservation and emission reduction, small emission cars are very popular. But the power can only be sloppy enough, I believe that many owners will choose a car with a turbocharged engine model, so that the 1.5T engine at low speed fuel saving, and when the need to improve the power and can reach the explosive force of 1.8/2.0 engine. However, there are a lot of car owners choose turbocharged models but regret, this is why?

Now small-displacement turbines are the development trend of the entire automobile industry, from tens of thousands of yuan of vegetables to millions of luxury cars have begun to use turbines! Even the BMW 7-Series Q7 Range Rover Sport class is starting to use a 2.0T engine, but there’s nothing they can do about it. Global restrictions on large engines have forced oems to reduce their engines to keep up with the trend. low loader sales.

Turbocharging with the same displacement is really not fuel efficient

Besides power, another selling point of turbocharging is that it saves fuel, but you know what? Turbocharging is not fuel efficient at the same displacement. At the same displacement, because the turbine brings in a large amount of exhaust gas, which will be mixed with gasoline in the cylinder to produce a more powerful explosion acceleration turbocharged engine piston work, and naturally aspirated engine piston work in such a situation is far less than. So in the case of accelerating the piston work, the amount of fuel injection will also increase correspondingly, after all, if there is no gasoline as the power source, what pressurization is useless.

Turbocharged engines have an extra turbine, which changes the way they work, making them expensive to repair if they break down. But what I want to say is, how many turbines have been broken in the last two years? Seven or eight years ago, when the failure rate was really high. Remember when turbocharged engines first became popular, many models had problems after tens of thousands of kilometers. Because many people choose to turn off the engine directly after stopping the vehicle, and the temperature of the turbine is very high after high-speed operation. When the vehicle turns off, the cooling device of the engine also stops working. So the problem is that the extremely high temperatures are not cooling effectively, and over time some components fail. Today’s turbocharged engines have a delayed cooling function that continues to work even after the vehicle is turned off.

What does “turbo lag” actually feel like? As long as you’ve driven a manual car with a turbocharged engine. If you haven’t been sliding on the gas for a long time, step back on the gas and accelerate. The intake pressure in the intake pipe will be low because there is no pressurization for a long time. At this time, high intake pressure needs to be re-established. No matter how deep and hard you put your foot on the gas, it doesn’t feel like you’re going to get the power you want right away. Instead, you wait a while for the power to begin to build up, and then it gets more and more intense, as if you can’t stop. This is the classic “turbine lag” phenomenon.

Turbine, despite its good and bad, exists or becomes the mainstream for its own reason. You can’t have your cake and eat it too. If he gives you the chance to have it both ways, you will make some sacrifices.

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