Upgrading Your Eclipse Gsx’s Fuel System for Higher Power: Pumps, Injectors, and Costs

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The Mitsubishi Eclipse GSX is a beloved platform among car enthusiasts, especially those interested in tuning for higher power. One of the critical upgrades for achieving greater horsepower is enhancing the fuel system. This article will cover the essential components to consider when upgrading your GSX’s fuel system, focusing on fuel pumps, injectors, and the associated costs.

Understanding the Fuel System

The fuel system in your Eclipse GSX is responsible for delivering the right amount of fuel to the engine, ensuring optimal performance. When increasing horsepower, it is crucial to upgrade components that can handle the increased fuel demands.

Fuel Pumps

The fuel pump is a vital component of the fuel system. Upgrading to a high-performance fuel pump is necessary when increasing horsepower.

Types of Fuel Pumps

  • In-Tank Fuel Pumps: These pumps sit inside the fuel tank and are quieter and more efficient.
  • External Fuel Pumps: Mounted outside the tank, these pumps can handle higher flow rates but may require additional modifications.
  • Walbro 255 LPH: A popular choice for many tuners, capable of supporting up to 500 horsepower.
  • AEM 320 LPH: Known for its reliability and high flow rate, suitable for higher power applications.

Fuel Injectors

Fuel injectors play a crucial role in delivering the precise amount of fuel to the engine. Upgrading injectors is necessary when increasing boost levels or horsepower.

Types of Fuel Injectors

  • High-impedance Injectors: These are standard for most applications and work well with factory ECU setups.
  • Low-impedance Injectors: Typically used in high-performance setups, requiring a different driver circuit.
  • FIC 1000cc Injectors: Ideal for high horsepower builds, providing ample flow for turbo applications.
  • DeatschWerks 750cc Injectors: A great balance between performance and drivability, perfect for moderate power levels.

Costs Involved

When upgrading your fuel system, it’s essential to consider the costs associated with each component. Below is a breakdown of expected costs.

Fuel Pump Costs

  • Walbro 255 LPH: $100 – $120
  • AEM 320 LPH: $150 – $200

Fuel Injector Costs

  • FIC 1000cc Injectors: $600 – $700 (set of four)
  • DeatschWerks 750cc Injectors: $400 – $500 (set of four)

Installation Considerations

While some enthusiasts may choose to install these components themselves, professional installation is recommended for optimal performance and reliability.

DIY vs. Professional Installation

  • DIY Installation: Can save money but requires mechanical skills and tools.
  • Professional Installation: Ensures proper setup and tuning, reducing the risk of errors.

Conclusion

Upgrading your Mitsubishi Eclipse GSX’s fuel system is a crucial step in achieving higher power levels. By investing in quality fuel pumps and injectors, you can ensure your vehicle runs efficiently and reliably. Consider your goals and budget when planning these upgrades, and always prioritize quality components to maximize performance.