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The 4G63 engine has earned a reputation in the automotive community for its performance potential, especially in the Mitsubishi Eclipse. To unlock the full power of this engine, upgrading the camshaft and valve train is essential. This article explores some of the top options available from HKS, BC, and Tomei, which can significantly enhance performance and reliability.
Understanding Camshaft Upgrades
Camshaft upgrades are crucial for improving airflow and optimizing engine performance. The camshaft controls the timing and duration of valve openings, directly impacting the engine’s ability to breathe. Here are some key factors to consider when selecting a camshaft for your 4G63:
- Lift: The height the valve opens, which affects airflow.
- Duration: The time the valve stays open, influencing engine RPM and power band.
- Profile: The shape of the cam lobe, which determines the valve’s behavior.
HKS Camshaft Options
HKS is a renowned brand in the tuning community, offering high-quality camshafts designed for performance. Their products are known for their reliability and power gains. Here are some notable HKS camshaft options:
- HKS 272 Camshaft: Ideal for street and track use, providing a good balance of low-end torque and high-end power.
- HKS 264 Camshaft: Offers a milder profile, suitable for daily driving while still enhancing performance.
- HKS 280 Camshaft: Best for high-performance builds, maximizing airflow for top-end power.
BC Camshaft Options
BC Racing is another well-respected name in the aftermarket parts industry. Their camshafts are designed to provide maximum performance without sacrificing reliability. Here are some popular options:
- BC 272 Camshaft: A great option for those looking to increase horsepower while maintaining drivability.
- BC 280 Camshaft: Designed for high-performance applications, delivering significant power gains at higher RPMs.
- BC 264 Camshaft: Perfect for a balanced setup, offering improved performance without excessive lope.
Tomei Camshaft Options
Tomei is known for its high-performance engine components, and their camshafts are no exception. They focus on maximizing power and improving throttle response. Here are some options from Tomei:
- Tomei 260 Camshaft: A solid choice for street applications, providing a good mix of performance and drivability.
- Tomei 270 Camshaft: Suitable for more aggressive builds, enhancing power and responsiveness.
- Tomei 280 Camshaft: Best for race applications, offering maximum performance at high RPMs.
Importance of Valve Train Upgrades
Upgrading the valve train is equally important when enhancing your camshaft. The valve train components must be able to handle the increased lift and duration provided by performance camshafts. Here are some key upgrades to consider:
- Valve Springs: High-performance valve springs prevent valve float at high RPMs.
- Retainers: Lightweight retainers reduce mass for better performance.
- Pushrods: Upgraded pushrods can handle increased loads and improve reliability.
HKS Valve Train Components
HKS also offers a range of valve train components that complement their camshafts. These parts are designed to work together for optimal performance. Key components include:
- HKS Valve Springs: Designed to withstand high RPMs without losing tension.
- HKS Retainers: Lightweight and durable, ensuring reliable performance.
BC Valve Train Components
BC Racing also provides valve train upgrades that are compatible with their camshafts. These components help ensure that the engine operates smoothly even at high performance levels:
- BC Valve Springs: Engineered for high RPM stability and improved performance.
- BC Retainers: Crafted from high-strength materials for reliability under stress.
Tomei Valve Train Components
Tomei’s valve train components are designed to work seamlessly with their camshafts, providing the necessary support for high-performance applications. Notable components include:
- Tomei Valve Springs: Designed to handle aggressive cam profiles and high RPMs.
- Tomei Retainers: Lightweight and durable, ensuring optimal performance.
Final Thoughts
Upgrading the camshaft and valve train of your 4G63 Eclipse can lead to significant improvements in performance and reliability. Brands like HKS, BC, and Tomei offer a range of options to suit different needs and preferences. When selecting components, consider your specific goals and the balance between daily drivability and high-performance capabilities. With the right upgrades, your 4G63 can reach new heights of power and efficiency.