What Causes Poor Acceleration at High Speeds in Cars?
2 Answers
Poor acceleration at high speeds in cars may be due to poor fuel quality, clogged fuel filters, blocked injectors, or aging fuel pumps. Here are some solutions: 1. Exhaust modification: Replace the mid and tail sections of the exhaust pipe to allow air to enter the engine faster, thereby improving engine power. 2. Tire modification: Modifying tires is simpler than exhaust modifications. When widening the rims and tires, do not use the vehicle's specified adjustment values as a standard, as this may affect the normal operation of other vehicle components. 3. Modify the engine intake system: The main purpose is to increase engine displacement and charging efficiency, thereby enhancing engine power. You can also directly modify the car's air filter.
I've encountered this issue myself when driving long distances. Lack of power during high-speed acceleration is mostly due to fuel system or intake problems. Insufficient fuel pump pressure leads to inadequate fuel supply, or a dirty air filter causes intake blockage, resulting in incomplete combustion at high engine speeds. It could also be aging ignition coils or weak spark plugs causing unstable ignition under high load. A clogged exhaust system, such as the catalytic converter, can also limit power output. I recommend first checking if the air filter and fuel filter are clean, then testing whether the fuel pressure is normal. If the problem persists, inspect the condition of the spark plugs. Don't push the engine too hard to avoid damage. Regular maintenance can prevent most failures, especially for those who frequently drive on highways—keep a close eye on these components.
