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The Mitsubishi Eclipse equipped with the 4G63 engine is a beloved platform among car enthusiasts and tuners. With its turbocharged inline-four design, this engine has significant potential for power upgrades. In this article, we will explore proven modifications that can help beginner tuners take their stock 4G63 Eclipse to an impressive 350 horsepower.
Understanding the 4G63 Engine
The 4G63 is a 2.0-liter turbocharged engine that has been used in various Mitsubishi and Chrysler models. Known for its durability and tuning potential, it features a DOHC design and a robust iron block. Understanding its components is crucial for anyone looking to modify this engine.
- 2.0-liter capacity
- Turbocharged design
- DOHC configuration
- Iron block construction
Essential Mods for Beginners
When starting your tuning journey, it’s essential to focus on modifications that provide the best performance gains for the investment. Here are some key mods that can help you reach the 350 hp mark.
1. Upgraded Turbocharger
One of the most significant upgrades you can make is to install a larger turbocharger. Stock turbos often limit power potential, so replacing it with a bigger unit can yield substantial gains.
2. High-Performance Fuel Injectors
To support increased horsepower, you’ll need fuel injectors that can deliver more fuel. Upgrading to high-performance injectors ensures your engine receives the necessary fuel for optimal combustion.
3. Aftermarket Fuel Pump
Along with injectors, a high-flow fuel pump is essential to maintain fuel pressure under increased demand. This upgrade helps prevent fuel starvation during high-performance driving.
4. Performance Intercooler
As you increase boost levels, the air entering the engine becomes hotter, which can lead to detonation. An aftermarket performance intercooler helps cool the intake air, improving efficiency and power.
5. Exhaust System Upgrade
A free-flowing exhaust system reduces back pressure and allows your engine to expel exhaust gases more efficiently. Upgrading to a performance exhaust can significantly improve horsepower and torque.
6. Engine Management System
To optimize your modifications, a standalone or piggyback engine management system is crucial. This allows for precise tuning of fuel maps and ignition timing, maximizing the potential of your 4G63.
Supporting Modifications
While the essential mods will get you closer to your horsepower goals, supporting modifications can enhance reliability and performance. Consider the following:
- Upgraded clutch for better power handling
- Stronger engine internals for increased durability
- Better cooling system to manage heat
- Performance camshafts for improved airflow
Tuning and Maintenance
After completing your modifications, proper tuning is essential to ensure your engine runs smoothly and efficiently. Regular maintenance checks are also crucial to keep your vehicle in optimal condition.
- Regular oil changes with high-quality synthetic oil
- Check and replace spark plugs as needed
- Monitor boost levels and fuel trims
- Inspect intercooler and piping for leaks
Conclusion
Transforming your stock 4G63 Eclipse into a powerful machine capable of reaching 350 hp is an exciting journey. By focusing on the essential modifications and supporting upgrades, beginner tuners can unlock the true potential of this iconic engine. Always remember to tune your vehicle properly and maintain it regularly for the best performance.