In today's automotive market, turbocharged engines and self-priming engines are the two mainstream engine types. They have their own advantages and disadvantages in terms of power output, fuel economy and emissions performance. In highway driving, which engine is more suitable has always been a hot topic among car enthusiasts. This article will provide an in-depth comparison of the two engines to reveal who is better suited for running at high speeds. First, the working principle and characteristicsTurbocharged engine.
A turbocharged engine is a type of engine that utilizes an exhaust gas turbocharger to increase the intake pressure. At high speeds, the exhaust gas turbocharger uses the exhaust gas energy from the engine to drive the turbine, which drives the coaxial compressor to compress the air into the cylinder. Due to the increased density of the air, more fuel can be provided for combustion, resulting in greater power. Self-priming engine.
A self-aspirating engine is an engine that relies on a natural air intake method to draw air into the cylinders. It does not have a supercharger and the intake pressure is the same as the atmospheric pressure. As a result, self-priming engines have relatively low power output and fuel economy, but are simple in construction and low in maintenance. 2. Comparison of power and performanceIn highway driving, dynamic performance is a key factor. Turbocharged engines produce more power due to their ability to provide higher intake pressures, resulting in more fuel combustion. At the same displacement, the power output of a turbocharged engine is usually more than 30% higher than that of a self-aspirated engine. This means that at high speeds, the turbocharged engine is able to provide better acceleration and climbing ability. In addition, the turbocharged engine produces more torque at low revs, making the vehicle smoother at start and low speed. This is very beneficial for overtaking and emergency braking situations on the highway. In contrast, the power output of the self-priming engine is relatively small, and the acceleration performance and climbing ability are weak. When driving on the highway, it may take longer to reach higher speeds, and you may need to downshift or press the accelerator deep when overtaking or climbing. 3. Fuel economy comparisonTurbocharged engines, while capable of providing more power, have relatively low fuel economy. This is because during the pressurization process, a part of the energy needs to be consumed to compress the air, resulting in a reduction in the mechanical efficiency of the engine. In addition, turbocharged engines have higher combustion temperatures, which generate more exhaust heat and also increase fuel consumption. In contrast, a self-priming engine is mechanically more efficient because it does not have the energy consumed by a supercharger. At high speeds, self-priming engines generally have better fuel economy. In addition, the self-priming engine has a lower combustion temperature, which reduces exhaust heat and also contributes to lower fuel consumption. Fourth, reliability comparisonIn terms of reliability, self-priming engines are generally more reliable and durable. Due to its simple structure and small number of parts, the failure rate is relatively low. In addition, self-priming engines have a long component life and relatively low maintenance costs. In contrast, turbocharged engines have a relatively high failure rate due to the higher number of parts and higher structural complexity. In addition, turbochargers typically have a short lifespan and require regular maintenance and replacement. This increases the cost of use and the difficulty of maintenance. 5. Environmental Impact ComparisonIn terms of emission performance, turbocharged engines are usually able to provide lower emissions. Due to its ability to burn the fuel more fully, harmful substances in the exhaust gas are reduced. This makes turbocharged engines more in line with current environmental regulations and energy saving and emission reduction trends. 
6. Conclusion: Turbocharged engines are more suitable for running at high speedsA comprehensive comparison of operating principles and characteristics, power and performance, fuel economy, reliability and environmental impact shows that turbocharged engines have more obvious advantages in highway driving. Although the fuel economy and reliability of turbocharged engines are slightly inferior to self-priming enginesAdvantages and disadvantages of turbocharged engines:Advantages: More power: Able to provide higher power and torque, making the car accelerate faster and more powerful.
Fuel economy: Fuel economy is improved by increasing air pressure, which makes the fuel burn more fully.
Environmental protection: It can reduce exhaust emissions and meet increasingly stringent environmental protection requirements.
Disadvantages: Higher: Turbocharged engines cost more than naturally aspirated engines.
High maintenance costs: Due to the increase in components such as turbochargers, repair and maintenance costs will increase accordingly.
Noise and vibration: Turbocharged engines can produce more noise and vibration when operating than naturally aspirated engines.
Choice: When choosing whether or not to use a turbocharged engine, you need to consider the vehicle's purpose and driving habits. If you need a car with a lot of power and good fuel economy, a turbocharged engine is a great choice. But if you're just commuting to the city and don't pay much attention to the noise and vibration of your vehicle, a naturally aspirated engine may be a more economical and reliable option.