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The Mitsubishi 4G63 turbo engine has been a favorite among car enthusiasts and tuners for decades. Known for its reliability and potential for power, many owners seek to upgrade their engines for enhanced performance. This article explores the journey of upgrading a 4G63 turbo from 300 horsepower (Hp) to over 500 Hp, detailing the necessary modifications and considerations.
Understanding the 4G63 Turbo Engine
The 4G63 is a 2.0-liter inline-four engine that gained fame in the Mitsubishi Eclipse, Talon, and Lancer Evolution models. Its robust design allows for significant power upgrades, making it a popular choice for tuners.
Initial Setup: 300 Hp Configuration
Before diving into upgrades, it’s essential to understand the components that support a 300 Hp setup. This configuration typically includes:
- Stock turbocharger
- Upgraded intercooler
- Performance exhaust system
- ECU tuning
- High-flow fuel injectors
Key Upgrades for 500+ Hp
To achieve over 500 Hp, several critical upgrades are necessary. Each component plays a vital role in supporting the increased power output.
Turbocharger Upgrade
Upgrading the turbocharger is one of the most significant steps. A larger turbo, such as a GT30 or GT35, can provide the airflow needed for higher power levels. Considerations include:
- Compressor size
- Turbo response time
- Boost levels
Fuel System Enhancements
With increased power comes the need for more fuel. Upgrading the fuel system involves:
- High-capacity fuel pump
- Larger fuel injectors (1000cc or more)
- Upgraded fuel lines
Engine Internals
To handle the increased power and boost levels, upgrading engine internals is crucial. Consider the following:
- Forged pistons
- Upgraded connecting rods
- Performance camshafts
Exhaust System Modifications
A free-flowing exhaust system is essential for reducing back pressure and improving performance. Key components include:
- High-flow catalytic converter
- Performance exhaust manifold
- 3-inch or larger exhaust piping
Cooling System Improvements
To maintain optimal performance, enhancing the cooling system is vital. Upgrades may include:
- Upgraded radiator
- Performance intercooler
- Oil cooler installation
Tuning and Calibration
After completing the hardware upgrades, proper tuning is essential to maximize performance and reliability. A professional tuner can ensure that the engine runs efficiently at higher power levels.
Conclusion
Upgrading a 4G63 turbo from 300 Hp to over 500 Hp is an exciting journey that involves various modifications and careful planning. By focusing on key components such as the turbocharger, fuel system, engine internals, and exhaust system, enthusiasts can unlock the full potential of this legendary engine.