Eclipse Gsx Power Gains: How a $2,500 Build Boosts Your Output to 400 Hp

The Mitsubishi Eclipse GSX is a beloved model among car enthusiasts, known for its turbocharged engine and all-wheel drive capabilities. With the right modifications, this vehicle can reach impressive power levels. In this article, we will explore how a $2,500 build can significantly boost your Eclipse GSX’s output to an exhilarating 400 horsepower.

Understanding the Eclipse GSX

The Eclipse GSX is part of the Mitsubishi Eclipse lineup, produced from 1995 to 1999. It features a 2.0-liter inline-four engine, known for its robustness and tuning potential. The GSX variant comes with a turbocharger and all-wheel drive, making it a prime candidate for performance upgrades.

Key Components of the $2,500 Build

To achieve 400 horsepower, certain components must be upgraded. Here’s a breakdown of what you can expect to invest in:

  • Turbocharger Upgrade: A larger turbocharger can significantly increase airflow, leading to more power.
  • ECU Tune: Reprogramming the engine control unit optimizes fuel and timing for the new turbo setup.
  • Exhaust System: A high-flow exhaust system reduces back pressure and improves performance.
  • Fuel System Upgrade: Upgraded fuel injectors and a fuel pump ensure adequate fuel delivery.
  • Intercooler Upgrade: A larger intercooler cools the intake air, increasing efficiency and power.

Step-by-Step Breakdown of the Build

1. Turbocharger Upgrade

Investing in a larger turbocharger is crucial for achieving higher horsepower. Options like the Holset HX35 or a GT28RS can provide the necessary boost. These turbos are designed to handle more air, which translates to more power.

2. ECU Tune

After installing a new turbo, an ECU tune is essential. This recalibrates the engine’s parameters to maximize performance. Many tuners offer packages specifically for the Eclipse GSX, ensuring compatibility and optimal performance.

3. Exhaust System

A performance exhaust system, including a downpipe and cat-back exhaust, is necessary for reducing back pressure. This allows the engine to expel exhaust gases more efficiently, contributing to increased horsepower.

4. Fuel System Upgrade

To support the increased power, the fuel system must be upgraded. Larger fuel injectors and a high-flow fuel pump ensure that the engine receives enough fuel to match the new air intake from the turbocharger.

5. Intercooler Upgrade

A larger intercooler is vital for cooling the compressed air from the turbo. Cooler air is denser and contains more oxygen, allowing for better combustion and more power. Brands like Mishimoto and ETS offer excellent options for the Eclipse GSX.

Performance Gains and Expectations

With these modifications, achieving 400 horsepower is realistic. However, it’s important to understand that this power level requires careful tuning and quality components. Below are some expected performance metrics:

  • 0-60 mph: Approximately 4.5 seconds.
  • Quarter Mile: Low 12-second range.
  • Top Speed: Potentially over 150 mph.

Considerations Before Modifying

Before diving into modifications, consider the following:

  • Budget: Ensure you account for all costs, including labor if you’re not doing the work yourself.
  • Reliability: Higher power can lead to increased wear on engine components.
  • Insurance: Modifications can affect your insurance premiums; check with your provider.

Conclusion

The Mitsubishi Eclipse GSX is a fantastic platform for performance tuning. With a budget of $2,500, you can significantly enhance your vehicle’s output to 400 horsepower. By upgrading key components such as the turbocharger, exhaust system, and fuel system, you can unleash the true potential of your Eclipse GSX. Remember to consider reliability and budget as you embark on this exciting journey.