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The Mitsubishi Eclipse equipped with the 4G63 engine is a beloved choice among car enthusiasts and tuners. Known for its turbocharged performance and robust aftermarket support, upgrading the fuel system and boost controllers can significantly enhance its capabilities. This article will explore the best upgrades for the 4G63 Eclipse, focusing on fuel systems and boost controllers.
Understanding the 4G63 Engine
The 4G63 engine is a 2.0-liter inline-four engine that has powered various Mitsubishi models, including the Eclipse. It features a DOHC design and a turbocharger, providing a solid foundation for performance upgrades. The engine is known for its tunability, making it a favorite among those looking to extract more power.
Upgrading the Fuel System
Upgrading the fuel system is crucial for maximizing the performance of the 4G63 engine, especially when increasing boost levels. A well-designed fuel system ensures that the engine receives adequate fuel to match the increased air intake, preventing lean conditions that can cause damage.
High-Flow Fuel Injectors
One of the first upgrades to consider is installing high-flow fuel injectors. These injectors can deliver more fuel to the engine, allowing for higher power outputs.
- Consider injectors rated between 550cc to 750cc for most applications.
- Ensure compatibility with your engine management system.
Upgraded Fuel Pump
An upgraded fuel pump is essential for supporting increased fuel demands. A high-performance pump will provide the necessary flow and pressure for higher horsepower levels.
- Look for pumps rated at least 255 LPH for optimal performance.
- Consider a pump that fits directly into the stock fuel assembly for easier installation.
Fuel Pressure Regulator
A fuel pressure regulator helps maintain consistent fuel pressure across all operating conditions. Upgrading to an adjustable regulator allows for fine-tuning to match your engine’s requirements.
- Choose a regulator that can handle the increased flow from upgraded injectors.
- Ensure it has a gauge for easy monitoring of fuel pressure.
Boost Controller Upgrades
Boost controllers play a vital role in managing the turbocharger’s boost levels. Properly controlling boost can lead to significant performance gains while maintaining engine reliability.
Manual Boost Controller
A manual boost controller is a simple and cost-effective way to increase boost pressure. It allows the driver to adjust boost levels on the fly, providing a more engaging driving experience.
- Look for a unit that is easy to install and adjust.
- Ensure it is made from durable materials to withstand engine bay conditions.
Electronic Boost Controller
For those seeking more precision, an electronic boost controller offers advanced features like boost mapping and the ability to set different boost levels for various driving conditions.
- Choose a controller with a user-friendly interface for easy adjustments.
- Look for models that include boost control solenoids for optimal performance.
Other Considerations
While upgrading the fuel system and boost controller is essential, other factors can also impact performance. Consider the following:
- Upgrading the intercooler can help reduce intake temperatures, improving performance.
- Investing in a quality engine management system can optimize fuel maps and boost settings.
- Regular maintenance of the engine and supporting components is crucial for reliability.
Conclusion
Upgrading the fuel system and boost controllers on a 4G63 Eclipse can unlock significant performance potential. By carefully selecting components and ensuring compatibility, enthusiasts can enjoy a more powerful and responsive driving experience. Whether you’re a seasoned tuner or just starting, these upgrades will help you make the most of your Mitsubishi Eclipse.