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The 4G63 engine has gained a legendary status among car enthusiasts and tuners alike, especially for those looking to achieve high horsepower figures. With the right modifications and components, it is possible to push this engine beyond 700 horsepower. This guide will provide you with a comprehensive overview of building a 4G63 engine with forged internals and a Tial turbo, ensuring you have all the information needed to achieve your goals.
Understanding the 4G63 Engine
The 4G63 is a 2.0L inline-four engine produced by Mitsubishi. It is known for its robust design and potential for tuning. Originally found in models like the Mitsubishi Eclipse and Eagle Talon, it features a DOHC configuration and a turbocharged variant that has become a favorite among performance enthusiasts.
Key Components for Building a 700+ HP 4G63
- Forged Internals
- High-Performance Turbocharger
- Upgraded Fuel System
- ECU Tuning
- Enhanced Cooling System
Forged Internals
To handle the power demands of 700+ hp, you need to replace the factory internals with forged components. This includes:
- Forged Pistons: Choose pistons that can withstand high boost levels and provide the necessary compression ratio.
- Forged Connecting Rods: Opt for rods that are lightweight yet strong, ensuring they can handle the stress of high RPMs.
- Forged Crankshaft: A forged crankshaft is essential for durability under extreme conditions.
High-Performance Turbocharger
A Tial turbocharger is an excellent choice for achieving high horsepower. These turbos are known for their reliability and performance. When selecting a Tial turbo, consider:
- Size: Choose a turbo that can flow enough air for your horsepower goals.
- Response: Look for a turbo that provides quick spool times to enhance drivability.
- Wastegate: Tial’s wastegates are known for their precision and reliability, which is crucial for maintaining boost levels.
Upgrading the Fuel System
To support the increased horsepower, your fuel system must be upgraded. This includes:
- High-Flow Fuel Injectors: Install larger injectors to ensure adequate fuel delivery.
- Upgraded Fuel Pump: A high-performance fuel pump is necessary to maintain fuel pressure under high load.
- Fuel Pressure Regulator: An adjustable regulator can help manage fuel pressure effectively.
ECU Tuning
After upgrading your engine components, proper tuning is essential to maximize performance. A standalone ECU or a piggyback system can be used for tuning. Consider the following:
- Mapping: Custom tuning will optimize air-fuel ratios and ignition timing for your specific setup.
- Monitoring: Use data logging to monitor engine parameters and make adjustments as needed.
- Dyno Testing: A dyno session will help you fine-tune your setup and ensure you reach your horsepower goals.
Enhanced Cooling System
With increased horsepower comes increased heat. Upgrading your cooling system is vital to prevent engine damage. Key upgrades include:
- Aftermarket Radiator: A larger radiator will improve cooling efficiency.
- Upgraded Intercooler: A high-performance intercooler will help lower intake temperatures, enhancing performance.
- Oil Cooler: An oil cooler can help maintain optimal oil temperatures during high-performance driving.
Conclusion
Building a 4G63 engine to achieve 700+ horsepower is an ambitious but rewarding project. By selecting the right components, including forged internals and a Tial turbo, and ensuring proper tuning and cooling, you can unlock the full potential of this legendary engine. Whether you’re a seasoned tuner or a newcomer, this guide serves as a roadmap to achieving your horsepower goals.