We often hear some cars on the road with a huge noise, and it is also very cool. Many people think that changing the exhaust pipe to this way will greatly increase the power of the engine, and it will be more enjoyable to drive, is this the case?
Honestly, not at all. Because the exhaust pipe is changed, the power is useless at all. No matter how you change it, the engine displacement, horsepower, and torque are all so large, and the engine exhaust pipe is the same as before. It is useless to add ten branch pipes at the back. To a large extent, this kind of thing is just a psychological effect. Rather than this, it is better to use better spark plugs and gasoline from regular gas stations. During maintenance, check the air grid, gasoline grid, and throttle valve frequently, and clean and replace them if they are dirty.
First of all, the concept of "power" must be clarified. The so-called power includes two aspects, one is torque and the other is horsepower. Torque can be simply understood as acceleration force and speed-up force, we usually say that the car is strong, starting and speeding up quickly, and this performance is high torque. Horsepower is the top speed, which means how many kilometers per hour your car can run at the highest.
Generally speaking, competitive racing cars pursue the highest horsepower, and the highest speed on the track is very important to them. Their exhaust system has no muffler, So you hear the cars screaming on the track. Competitive racing cars completely change the exhaust, which will increase a certain amount of horsepower.
If the civilian car is refitted, especially a car with a small displacement, its torque and horsepower are relatively weak. If the modified exhaust is too smooth, the back pressure in the engine becomes smaller, and the exhaust gas that has not been fully burned is discharged may cause the loss of power to the engine, and the torque may be affected. There is another factor that causes the loss of torque, the decrease in engine power performance, the increase of noise, and even the increase in fuel consumption.
