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The Mitsubishi Eclipse GST has long been a favorite among car enthusiasts, especially for those looking to modify their vehicles for performance. Achieving over 300 wheel horsepower (WHP) is a common goal for many owners. In this article, we will explore the modifications that can help Eclipse GST owners reach this impressive milestone.
Understanding the Mitsubishi Eclipse GST
The Eclipse GST is equipped with a 2.0-liter turbocharged inline-four engine, known as the 4G63. This engine has a strong aftermarket support, making it a prime candidate for tuning and modifications. The combination of turbocharging and potential for upgrades allows for significant power increases.
Key Modifications for Achieving 300+ WHP
To reach the 300 WHP mark, several modifications are essential. Below is a list of key upgrades that Eclipse GST owners typically consider:
- Upgraded turbocharger
- High-performance intercooler
- Aftermarket exhaust system
- ECU tuning
- Upgraded fuel system
- Performance intake
- Enhanced ignition system
Upgraded Turbocharger
One of the most significant upgrades is the turbocharger. A larger turbo can provide increased airflow, which is crucial for achieving higher horsepower. Popular options include the Garret GT28 or the Holset HX35.
High-Performance Intercooler
An upgraded intercooler helps to lower the intake air temperature, improving engine efficiency and power output. A front-mounted intercooler is a common choice for those pushing for higher WHP.
Aftermarket Exhaust System
A free-flowing exhaust system reduces back pressure, allowing the engine to breathe better. This is essential for maximizing performance and achieving the desired horsepower levels.
ECU Tuning
ECU tuning is vital for optimizing the vehicle’s performance after modifications. This process adjusts fuel maps, ignition timing, and boost levels to ensure the engine runs efficiently and safely at higher power levels.
Upgraded Fuel System
To support increased horsepower, an upgraded fuel system is necessary. This may include larger fuel injectors, a higher-flow fuel pump, and a fuel pressure regulator to ensure adequate fuel delivery.
Performance Intake
A performance intake system can improve airflow to the engine, enhancing throttle response and overall power. Options vary from simple drop-in filters to full cold air intake systems.
Enhanced Ignition System
Upgrading the ignition system is crucial for ensuring a strong spark, especially at higher boost levels. This may include performance spark plugs and ignition coils that can handle increased power demands.
Real-World Examples of 300+ WHP Eclipse GSTs
Many Eclipse GST owners have successfully achieved over 300 WHP with the right combination of modifications. Here are a few examples:
- Owner A: Upgraded turbo, intercooler, and ECU tuning resulted in 320 WHP.
- Owner B: Full exhaust system and fuel upgrades achieved 310 WHP.
- Owner C: A combination of intake, ignition, and tuning led to 305 WHP.
Conclusion
Achieving over 300 WHP in a Mitsubishi Eclipse GST is attainable with the right modifications. By focusing on key areas such as the turbocharger, intercooler, exhaust system, and ECU tuning, owners can unlock the full potential of their vehicles. With dedication and the right parts, the dream of high-performance driving is within reach for many Eclipse GST enthusiasts.