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The 4G63 engine has gained a legendary status among car enthusiasts and tuners, particularly for its performance potential. Known for its robust design and turbocharging capabilities, the 4G63 can be pushed to impressive power levels, exceeding 800 horsepower with the right modifications. This article will explore the necessary steps and components required to maximize the performance of a 4G63 engine through custom internals and forced induction.
Understanding the 4G63 Engine
The 4G63 is a 2.0L inline-four engine that was originally developed by Mitsubishi. It has been widely used in various models, including the Mitsubishi Eclipse, Eagle Talon, and Mitsubishi Galant. Its design features a DOHC configuration and a turbocharger, making it an excellent candidate for performance upgrades.
Key Modifications for Achieving Over 800 HP
To achieve over 800 horsepower from a 4G63, several modifications are essential. These modifications include upgrading the engine internals, enhancing the fuel system, and optimizing the forced induction setup. Below is a breakdown of the critical components and modifications required.
- Custom Internals: Upgrading pistons, rods, and crankshaft.
- Forced Induction: Installing a high-performance turbocharger.
- Fuel System: Upgrading fuel injectors and fuel pump.
- Engine Management: Tuning the ECU for optimal performance.
Custom Internals
One of the first steps in maximizing the 4G63’s power output is upgrading the internal components. The factory pistons and rods are not designed to handle extreme power levels, so custom internals are necessary. Here are some recommendations:
- Pistons: Opt for forged pistons that can withstand high boost levels.
- Connecting Rods: Use forged rods for increased strength and reliability.
- Crankshaft: A forged crankshaft is essential for handling the added stress.
Forced Induction Setup
After upgrading the internals, the next crucial step is to enhance the forced induction system. The turbocharger plays a significant role in achieving high horsepower numbers. Consider the following:
- Turbocharger: Choose a large turbo capable of supporting over 800 HP.
- Intercooler: Install a high-performance intercooler to reduce intake temperatures.
- Exhaust System: Upgrade to a free-flowing exhaust system to improve turbo efficiency.
Fuel System Upgrades
A high-output engine requires a robust fuel system to deliver the necessary fuel for combustion. Upgrading the fuel system is critical for achieving and maintaining high horsepower levels. Important upgrades include:
- Fuel Injectors: Install larger fuel injectors to meet the increased fuel demand.
- Fuel Pump: Upgrade to a high-flow fuel pump to ensure adequate fuel delivery.
- Fuel Pressure Regulator: Use an adjustable regulator to maintain optimal fuel pressure.
Engine Management and Tuning
With all the hardware upgrades in place, proper engine management is essential for maximizing performance. Tuning the ECU is crucial to ensure that the engine runs efficiently and reliably. Here are some key aspects to consider:
- ECU Tuning: Use a standalone ECU or reflash the stock ECU for optimal fuel and timing maps.
- Dyno Tuning: Perform a dyno session to fine-tune the engine for maximum performance.
- Data Logging: Utilize data logging tools to monitor engine parameters and adjust as necessary.
Conclusion
Maxing out a 4G63 engine to achieve over 800 horsepower is an ambitious but achievable goal with the right modifications and tuning. By investing in custom internals, enhancing the forced induction setup, upgrading the fuel system, and optimizing engine management, enthusiasts can unlock the full potential of this iconic engine. With careful planning and execution, the 4G63 can become a powerhouse on the streets or the track.