How to Increase the Power of the Buick Excelle?

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To enhance the power of the Buick Excelle, you can increase the air flow and reduce intake resistance. Specific methods are as follows: 1. Install a high-flow air filter: This reduces the intake resistance of the engine while increasing the intake volume and volumetric efficiency per unit time during engine operation. 2. Modify the intake manifold shape: This can increase the air flow speed. Improvements to the intake manifold can be made in terms of shape and material. Changing the shape of the intake manifold serves two purposes: first, to achieve intake pressure storage for sudden throttle openings during rapid acceleration, and second, to increase the air flow speed. The material of the intake manifold should be heat-resistant and lightweight. 3. Use secondary air intake: This can improve volumetric efficiency. Secondary air intake involves drawing additional fresh air through the engine's PCV (Positive Crankcase Ventilation) system, utilizing the vacuum pressure difference in the intake manifold, to achieve higher volumetric efficiency. 4. Upgrade the throttle body: This can enhance intake efficiency. There are two ways to improve the throttle body: first, replace the servo motor with a faster one for electronic throttle upgrades; second, switch from a single throttle to multiple throttles, which is more common in sports cars and racing vehicles. This involves installing a separate throttle for each intake pipe, a setup also known as multi-throttle direct injection.