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So many people help you, are you a**?Can you give it a bit?!
If you're like that, someone will help ??? next time
It is now possible to say responsibly that supercharging is the general trend. In the past, some riders said that the Japanese engine was not supercharged, and now you can go and see that the independent brands are all copying Volkswagen's, EA888;Toyota, Honda, Hyundai, Kia near-term model planning;Already there was a supercharged engine as a high-end Subaru, Mitsubishi.
There are several problems with supercharged engines that need to be solved for users:
1, the power is small at the start, and it is necessary to step on the accelerator, which is not suitable for Chinese habits.
2. The power output is not linear, and it is not suitable for Chinese habits.
3. The quality problems of some parts are more prominent and the cost is high.
4. The maintenance cost is large and the man-hour cost is high.
In response to your question, it should be pointed out that the supercharged engine does not mean that the whole engine is particularly bad, but it is generally more precise than some parts of the supercharger, with high operating requirements and high costs, and some failures have caused some unnecessary panic. Parts that are prone to problems include:
Supercharger: The previous generation of superchargers generally does not have forced cooling after the engine stops, requiring the user to get down from high speed, not shut down immediately, and must idle for a while to cool the supercharger. However, the new generation, such as Volkswagen GM, has equipped a forced water pump on the supercharger, and this problem has been basically solved.
At present, it has basically been declared that under the correct maintenance, the supercharger can live with the engine;
High-pressure pump (pressurization + direct injection): This part is often imported, and because the pressure is very high, the parts are precise, and it is easy to have quality problems. Once something goes wrong, the user suffers financially.
More complex cooling systems and air intake systems. It's also prone to problems.
Briefly talk about the maintenance of the supercharged engine:
Pay more attention to keeping the air filter clean and replacing the filter element frequently
Engine oil should generally be used well and replaced regularly. Pay more attention to the loss of oil, as well as the color of exhaust gas, etc.
Pay attention to changes in the operating status of the supercharger, such as noise, etc.
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Supercharged engines are divided into mechanical supercharging and turbocharging with turbocharging are now more common, turbocharging can burst out more power than the natural aspiration of the same displacement, the disadvantage is that there will be turbo hysteresis when the turbo intervenes, but there is no big impact, the turbo is generally changed once in about 3 years** is very expensive, the natural aspiration output is stable than the turbine fuel consumption, and the power of the turbine is about the same as that of the natural aspiration.
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Neither is it. The supercharged engine uses oil saving, large horsepower output, full of power, most of the sports cars are supercharged, mainly depending on the person who uses it, under normal circumstances, eight to 100,000 kilometers to change the turbine.
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No, a supercharger can improve efficiency.
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This does not necessarily depend on the quality of the product.
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Yes. The impact of increasing the air intake varies depending on where it is located.
1. If you increase the air intake before the oxygen sensor, there is no need to modify it, because this is the same as stepping on the accelerator deeply; The throttle actually controls the amount of air intake, and the injector will inject fuel according to the amount of air intake.
2. If you increase the amount of air intake after the oxygen sensor, it seems that the same amount of oil but more oxygen should increase the power; However, the sail is only effective at medium speed, because low speed, especially in the case of cold driving, will cause the concentration of oil to be too thin and cause the engine to shake or stall; At high speeds, due to the lack of fuel, the power is lost and the acceleration is weak.
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1.Iron leakage words.
If you want to save trouble, you can make up some paint.
If you want to look good, respray it.
If you don't oxidize and rust, the area will expand.
2.There is still a big difference between headlight increment and xenon lamp.
If the headlights are upgraded to xenon lamps, it is best to install lenses, otherwise the lights will be astigmatized and will not achieve the expected effect (the spotlight bowl of the original headlights is designed for halogen lamps, and the reflection angle is different), and the fog lights are best changed to **eye.
Because the penetration of xenon lamps is very poor in foggy days.
The headlight increment is mainly to increase the voltage of the bulb, destroy the bulb, and also destroy the line 3Advantages of adding a turbo: increased power and increased driving pleasure.
Disadvantages: The car inspection is not good, and you need to find someone.
The turbine pressure is determined according to the pressure that the rigid body can bear.
Generally, the cast engine can not withstand too much pressure, which affects the life of the engine, and the power increase of small displacement vehicles will not be too obvious.
4.Intake and exhaust: Separately modified intake and exhaust has advantages and disadvantages for the engine, and the intake air flow is large.
The oil and vapor mixture is good, the combustion is more sufficient, the exhaust is smooth, and the exhaust is generally changed, so the whole section is changed, and only the tail end is changed just to look good and sound good.
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Yes, you mean turbocharging for the engine option. The general engine can not be installed, because increasing the air intake will damage the valve oil seal, crankshaft oil seal, and piston ring. Only engines with turbocharged engines that have been originally assembled by the manufacturer can be retrofitted, for example:
Some of the Ford Transit high-speed diesel engines are originally assembled with superchargers, and some of the same model can be equipped with turbochargers in the later stage if they are not required by customers. The turbocharged engine is much more airtight than a conventional naturally aspirated engine, which is why it is more expensive than a regular naturally aspirated engine.
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Reduced service life The cylinder may burst at any time
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What performance of the supercharged engine has been improved compared to the naturally aspirated engine and why.
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Compared with the naturally aspirated engine, the supercharged engine is the reason why turbocharging is popular, so as to increase the air intake of the engine, thereby increasing the power and torque of the engine, and making the car more powerful. In terms of structure and working filial piety, the supercharger drives the wheel to rotate the coaxial impeller through the exhaust gas discharged from the engine, so as to input fresh air into the engine and improve the power output of the engine.
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What are the respective advantages and disadvantages of naturally aspirated and turbocharged engines? What are the respective advantages and disadvantages of naturally aspirated and turbocharged engines? Natural aspiration means that the intake air after the engine is started depends on the natural principle to enter the oxygen, so that the gasoline combustion in the engine cylinder outputs power, and the turbo engine is to increase the air intake in the engine cylinder through turbocharging, so that the gasoline combustion is more sufficient, thereby increasing the power output of the engine.
The following is an introduction to the advantages and disadvantages of the two: 1. Turbocharging (1) Advantages: the crankshaft drives the turbofan to work to improve the air intake, the power output is fast, the supercharging interval is long, the low-speed torque is sufficient, the speed is obvious, the engine speed is the same as the fan speed without stagnation, the supercharging efficiency is high, and the engine life is not affected.
2) Disadvantages: The crankshaft drives the turbine to lose power, and the supercharging effect is not obvious. 2. Naturally aspirated engine (1) Advantages:
The durability of the engine is higher, the technology is mature, the mechanism is relatively simple, the power is smoother, and the requirements for oil products are not high. (2) Disadvantages: the technology is somewhat outdated, the same displacement power is weaker, and the speed increase and fuel economy are relatively weak.
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Pressurization, to put it simply, is to add a fan to increase the amount of air sucted into the cylinder and increase the compression ratio of the air.
The faster a fan rotates, the greater the amount of air generated.
There are 2 ways to boost the pressure here.
One is mechanical supercharging, which is to rely on the speed of the engine itself to drive the fan to rotate.
The other is turbocharging, which is driven by exhaust gases from the cylinders.
Since it is driven by exhaust gas, when the speed is low, the exhaust gas output is small, so the turbocharging effect is not obvious, when the speed is increased (the current turbocharging technology is good, basically more than 1500 rpm can be felt) can have a significant feeling of power output improvement. It's the so-called turbo lag.
Naturally aspirated is to rely on the piston of the engine itself for suction and exhaust, and there is no fan to pressurize the cylinder. So, there is no feeling of this sudden increase, it has been a very smooth increase.
In fact, turbocharging technology is now very mature, with a good transmission system (transmission) turbo lag in ordinary family cars is difficult to feel, the so-called more natural aspiration maintenance is difficult, easy to break is almost history.
If you look at it purely in terms of future trends, turbocharging is the trend, which offers higher compression ratios and better fuel economy (more fuel efficient).
The materials copied upstairs are also too old. Turbocharging is now common in the average mid-range family car.
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Yes, you said that each cylinder of the Sutar engine has only two valves, that is to say, the number of valves of this engine is less, and the frequency of failure is relatively low, but it may consume a lot of fuel and it is easy to get too high a temperature. The Octavia engine is relatively speaking, the technical quality is relatively high, but because there are, too many valves, the frequency of failures, certainly than other, lower-grade car engines, but the power is large, fuel consumption is less, but the maintenance cost is relatively high, go to what 4S shop money is very high, we all know, the more high-end the car, the cost of maintenance, must be much higher than others, low-end cars, personal opinion, the engine of the speed is better, should be its fault, Generally just the radiator of the aspect, do not need to spend a lot of money, and high-end cars, at every turn to change the valve parts, should be the boss will not do their best to help you repair, some high-end cars, want to import the engine of the car, and some European maintenance personnel have not even seen it, so only, the low-end engine is more reliable, economical, but I don't say much, buy or not to buy or yours, point of view, I am here to remind you to buy, to buy a high-end sports car, not to sell so noble, just buy the ordinary,Save some money.,It's not bad for the future in the future.,Haha-la-la.。。
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