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The Mitsubishi Eclipse equipped with the 4G63 engine has a storied history in the tuning community, particularly among enthusiasts looking to achieve high horsepower figures. Reaching 600 horsepower on a 4G63 Eclipse is an ambitious yet attainable goal with the right upgrades, tuning, and engine management strategies. This article will guide you through the essential steps to achieve this power level.
Understanding the 4G63 Engine
The 4G63 engine is a 2.0-liter inline-four engine known for its robust design and performance potential. Originally designed for the Mitsubishi Galant and later used in the Eclipse, this engine has become a popular choice for tuning due to its strong aftermarket support and inherent tuning capabilities.
Essential Upgrades for High Horsepower
To achieve 600 horsepower, you will need to implement several key upgrades to your 4G63 engine. Here are the most critical components to consider:
- Turbocharger: Upgrading to a larger turbocharger, such as the Garrett GT30 or GT35, is crucial for increasing airflow and boosting power.
- Fuel System: A high-flow fuel pump and larger injectors are necessary to provide adequate fuel for high horsepower levels.
- Intercooler: An upgraded front-mount intercooler will help keep intake temperatures low, improving performance and reliability.
- Exhaust System: A free-flowing exhaust system, including a downpipe and cat-back exhaust, will reduce back pressure and enhance turbo response.
- Engine Internals: Strengthening the engine with forged pistons and connecting rods will help handle the increased power and boost levels.
Tuning for Performance
Tuning is a critical component in reaching 600 horsepower on a 4G63 Eclipse. Proper tuning ensures that the engine runs efficiently and reliably at high power levels. Here are the steps to follow:
- ECU Upgrade: Upgrading the engine control unit (ECU) to a standalone system or a programmable ECU will allow for more precise tuning.
- Dyno Tuning: A professional dyno session is essential to fine-tune the air-fuel ratio, ignition timing, and boost levels for optimal performance.
- Monitoring: Utilize wideband O2 sensors and data logging to monitor engine performance and make adjustments as necessary.
Engine Management Systems
Choosing the right engine management system is vital for maximizing the performance of your 4G63 Eclipse. Here are some popular options:
- AEM Infinity: A powerful standalone ECU that offers extensive tuning capabilities and features.
- ECUFlash: A software solution for tuning the stock ECU, allowing for adjustments to fuel maps and ignition timing.
- Haltech: Another standalone option known for its user-friendly interface and robust tuning features.
Boosting Reliability
With increased power comes the need for enhanced reliability. Here are some modifications to consider for ensuring your engine can handle the demands of 600 horsepower:
- Cooling System: An upgraded radiator and oil cooler will help keep engine temperatures in check during high-performance driving.
- Engine Management Features: Implementing features like anti-lag and boost control can improve drivability and performance.
- Regular Maintenance: Frequent oil changes and inspections will help maintain engine health and longevity.
Conclusion
Reaching 600 horsepower on a 4G63 Eclipse requires a combination of strategic upgrades, precise tuning, and effective engine management. By following the guidelines outlined in this article, you can unlock the full potential of your Eclipse and enjoy an exhilarating driving experience. Always remember to prioritize reliability and safety while pursuing high horsepower goals.