Why does the car feel less powerful after modifying the exhaust?
1 Answers
After modifying the exhaust, the exhaust pipe diameter is usually increased to allow smoother exhaust flow. Some exhaust systems are straight-through, some have backpressure, and some come with valves. Straight-through exhausts, due to the lack of backpressure or minimal backpressure, may lose some low-end torque, with straight-through systems losing relatively more. However, smoother exhaust flow can increase power at high speeds. This is why valve systems were developed—to minimize low-end torque loss while increasing power at high speeds when the valves are open. More related information is as follows: 1. Function: The exhaust pipe primarily serves to reduce vibration and noise (muffling) and minimize harmful gas pollution. During driving, exhaust gases exit the engine at high pressure, creating significant noise. The exhaust pipe contains a muffler, which helps reduce noise. The car's exhaust system also includes a "three-way catalytic converter," which reduces pollution. This device converts harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides from car exhaust into harmless carbon dioxide, water, and nitrogen through oxidation-reduction reactions, thereby purifying the exhaust and reducing air pollution. 2. Note: Although the exhaust pipe is not a precision component inside the car and is exposed externally, many people assume it must be a durable part. As a result, even if it's covered in dirt, it may be considered normal. However, a crucial point is that the exhaust pipe connects external elements to the car's interior, primarily by expelling exhaust gases from the engine. Improper driving can allow harmful substances to enter the car's interior through the exhaust pipe. Therefore, maintaining the exhaust pipe is, in many ways, equivalent to maintaining the car's interior.
