Table of Contents
The Mitsubishi Eclipse equipped with the 4G63 engine has garnered a reputation in the automotive community for its performance potential. With the right modifications, this engine can be pushed to incredible power levels, including over 700 horsepower. In this article, we will explore how to maximize the performance of a 4G63 Eclipse using a Garrett GTX turbo and Tomei internals.
Understanding the 4G63 Engine
The 4G63 is a 2.0L inline-4 engine that has been a favorite among tuners due to its robust design and tuning capabilities. Originally found in the Mitsubishi Eclipse, Galant, and Lancer, this engine is known for its strong performance under boost. To achieve high horsepower numbers, it’s essential to understand the engine’s construction and its limitations.
Key Features of the 4G63
- Iron block and aluminum DOHC head for durability.
- Strong forged internals in factory turbocharged models.
- Ability to handle significant boost levels with proper modifications.
Choosing the Right Turbo: Garrett GTX
The choice of turbocharger plays a critical role in achieving high horsepower. The Garrett GTX series offers advanced technology and efficiency that can significantly improve power output. The GTX turbochargers are known for their quick spool and high-flow capabilities, making them ideal for 4G63 applications.
Benefits of Garrett GTX Turbo
- Improved airflow and reduced turbo lag.
- Higher horsepower potential compared to older turbo models.
- Durable construction for high-performance applications.
Upgrading Internals: Tomei Components
To support the increased power from the Garrett GTX turbo, upgrading the engine internals is crucial. Tomei offers a range of high-performance components that can handle the stress of high horsepower applications. These upgrades ensure the engine remains reliable and performs optimally under extreme conditions.
Essential Tomei Internals for 700+ HP
- Tomei forged pistons for enhanced strength and durability.
- High-performance connecting rods to handle increased loads.
- Upgraded camshafts for improved airflow and power delivery.
Supporting Modifications
In addition to the turbo and internals, several supporting modifications are necessary to achieve and maintain 700+ horsepower. These modifications ensure that the engine can breathe efficiently and that the fuel system can deliver the necessary fuel to support high power levels.
Key Supporting Modifications
- Upgraded fuel injectors for increased fuel delivery.
- High-flow fuel pump to maintain pressure under load.
- Performance intercooler to reduce intake temperatures.
- Upgraded exhaust system for improved flow.
Tuning for Maximum Performance
Once all modifications are in place, proper tuning is essential to unlock the full potential of the 4G63 engine. A professional tuner can adjust the engine management system to optimize fuel maps, ignition timing, and boost levels, ensuring that the engine runs smoothly and efficiently at high power levels.
Importance of Professional Tuning
- Prevents engine damage through proper air-fuel ratio adjustments.
- Maximizes horsepower and torque output.
- Improves drivability and throttle response.
Conclusion
Maxing out a 4G63 Eclipse to achieve over 700 horsepower is an exciting challenge that requires careful planning and execution. By selecting the right turbo, upgrading internals with Tomei components, and making necessary supporting modifications, enthusiasts can unlock the full potential of their engines. With proper tuning, the dream of a high-powered 4G63 Eclipse can become a reality.