Changing the turbine is a power modification, and it is within the scope of illegal modification. If the annual inspection is found, of course it will not pass. As for whether it is useful, it will be somewhat useful, similar to improving the exhaust. Because changing the intake pressure affects the air flow, it will affect the power and top speed to some extent. Of course, this effect is only if you modify it correctly, otherwise it may have the opposite effect, but there are too many details to consider in turbocharging. , personal modification is very risky, please pay attention to: Rongji Ignition
Turbocharging technology was patented more than 100 years ago and has only matured in recent decades
Early In 1905, a Swiss engineer named Busi proposed the concept of turbocharging and applied for a patent at the same time. The essence of turbocharging is to allow a cylinder with a limited displacement to input energy per unit time. More air intake allows the car to burn less oil and output more power without increasing the displacement. Therefore, the principle of turbocharging is relatively simple, but implementing it is another matter. People who play with engines around the world have been exploring for more than half a century. It was not until the 1970s that Porsche truly matured turbocharging products. It was implemented on one of its models and became truly popular in Europe in the 1980s. This shows that turbocharging technology is something that is simple in principle but difficult to implement.
From a structural point of view, a turbocharged car is a naturally aspirated engine plus a turbocharger. The turbocharger is an air supply pump, and its power comes from Due to the secondary utilization of the remaining energy of the exhaust gas, it does not consume any energy on the engine and can theoretically increase the engine's power output by more than 40%.
Because the turbocharging system squeezes the power of the engine, which means the engine's working load is increased, the loss of accessories is greater, and the temperature rise is also severe, so the requirements for accessories will theoretically be higher. a little. Therefore, turbocharged car manufacturers take these details into consideration when designing, perfect and improve them before leaving the factory, and strictly debug them before launching them on the market. If you use an ordinary naturally aspirated engine and add a turbocharger system to it, the engine may wear much faster and be prone to some problems. At the same time, if the modification is not ideal, the fuel consumption will also increase.
Modification is not a simple addition
Although in principle, adding a turbocharger to a naturally aspirated engine will result in a turbocharged car. Perhaps the current naturally aspirated engine accessories are reliable The sex is also much stronger than before, but that doesn’t mean that just putting it on will have good results.
With the addition of a turbocharger, the engine air intake volume can be increased. Nowadays, cars have electronic injection systems, which will measure the increase in intake air flow and automatically increase fuel injection. quantity, this will increase the motivation. However, because the engine is not a linear control system, its control is still based on the MAP chart calibrated according to the load and speed to obtain the benchmark, which can only be relatively ideal within a certain range. If you simply increase the air intake volume, the relationship between engine speed and load will change to a certain extent, which is equivalent to the calibration benchmark changing. In this way, the fuel injection volume may not necessarily match the engine's power demand well, and the fuel consumption may decrease. If it is increased, and the exhaust emissions cannot meet the standards, it will cause greater harm to the three yuan, so it will directly fail the annual inspection.
If you can modify the ECU data and have certain calibration capabilities, you can indeed install a set and explore it yourself, but this requires a certain amount of patience and hands-on ability. Moreover, the quality of these products sold online varies, and reliability is an issue. After installing them, you must be mentally prepared to repair them at any time.
Electronic turbine technology is immature
From a control point of view, electronic products are easier to modify than mechanical products, and it is easier to see the modification effect. Many of them are sold online. Electronic turbochargers, but no company can mass-produce electronic turbine technology, which also shows that it has a bottleneck for the time being.
The main problem lies in the motor. Turbocharging requires more than 100,000 revolutions per minute. It is almost difficult to find such a high-speed motor on the market. Maybe it is found in the military industry, but most people use it. Not worth it.
An ordinary 4-pole motor can rotate at 1,500 rpm. The motor for the machine tool spindle generally does not have more than 10,000 rpm. If the motor speed is 20,000 to 30,000 rpm, it is very high. , the current technology is not good. At such a low speed, if you want to use it to supercharge the engine, it will only end up being dragged back by the engine's intake airflow. Instead, the air pump becomes an obstruction and disturbance, which has the opposite effect.
Of course, if a speed-increasing mechanism can be found to amplify the motor's speed by more than 10 times, the effect of exhaust gas turbocharging can theoretically be achieved, and because electronics are easy to precisely control synchronization, it is possible After modification, it will respond faster and be more accurate, but this kind of speed-increasing mechanism is almost non-existent in the civilian market. Imagine that high-speed bearings are a troublesome thing.
Even if electronic turbocharging is possible, its energy comes from the battery, which requires a certain amount of combustion to ensure, so you may not get the benefits of exhaust gas turbocharging after modification.