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The 4G63 engine, renowned for its robust design and performance potential, is a popular choice among automotive enthusiasts. This article explores how to safely boost the power of a 4G63 engine from 300 to 500+ horsepower through effective turbocharging techniques.
Understanding the 4G63 Engine
The 4G63 is a 2.0L inline-four engine that has been widely used in various Mitsubishi models. Its strong internals and turbocharged variants make it an excellent candidate for performance upgrades. Here’s what you need to know:
- Engine Type: Inline-four
- Displacement: 2.0 liters
- Original Power Output: Approximately 190-200 hp (varies by model)
- Turbocharged Variants: Found in models like the Mitsubishi Eclipse and Galant VR-4
Setting Power Goals
Before diving into modifications, it’s crucial to set realistic power goals. Aiming for 500+ hp requires careful planning and execution. Consider the following:
- Current power output: 300 hp
- Target power output: 500+ hp
- Purpose of the build: Daily driver, track car, or show vehicle
Essential Modifications for Turbocharging
To achieve a safe and reliable power increase, several modifications are essential. Each component plays a vital role in the overall performance of the engine.
Upgraded Turbocharger
Choosing the right turbocharger is critical for achieving your power goals. Look for a turbo that matches your desired horsepower range. Consider:
- Turbo Size: Larger turbos can provide more power but may require more supporting modifications.
- Response: Choose a turbo that balances power and response for your driving style.
Fuel System Upgrades
To support increased horsepower, the fuel system must be upgraded. This includes:
- High-Flow Fuel Injectors: Necessary for delivering more fuel to the engine.
- Fuel Pump: An upgraded pump ensures sufficient fuel delivery under high load.
- Fuel Pressure Regulator: Helps maintain optimal fuel pressure.
Engine Internals
For a significant power increase, reinforcing the engine internals is crucial. Consider the following upgrades:
- Forged Pistons: These can withstand higher pressures and temperatures.
- Upgraded Rods: Stronger connecting rods are essential for high horsepower applications.
- Balanced Crankshaft: Ensures smooth operation at high RPMs.
Supporting Modifications
In addition to the essential modifications, several supporting upgrades will enhance performance and reliability:
Cooling System Enhancements
With increased power comes increased heat. Upgrading the cooling system is vital:
- Intercooler: A larger intercooler reduces intake temperatures, improving performance.
- Radiator: An upgraded radiator helps maintain optimal engine temperatures.
- Oil Cooler: Keeps oil temperatures in check during high-performance driving.
Exhaust System Upgrades
An efficient exhaust system is crucial for maximizing turbo performance. Consider:
- High-Performance Exhaust Manifold: Improves turbo spool time and overall efficiency.
- Cat-Back Exhaust System: Enhances exhaust flow and sound.
Tuning for Performance
Once all modifications are complete, proper tuning is essential to ensure the engine runs safely and efficiently. Key aspects of tuning include:
- ECU Remapping: Adjusts fuel maps and ignition timing for optimal performance.
- Dyno Tuning: Provides real-time feedback and ensures the engine is running at its best.
- Monitoring Systems: Install gauges to keep an eye on boost, fuel pressure, and temperatures.
Safety Considerations
Boosting power significantly increases the demands on the engine. Always prioritize safety by:
- Regular Maintenance: Keep up with oil changes, filter replacements, and inspections.
- Quality Parts: Use high-quality components to ensure reliability.
- Driving Habits: Be mindful of how you drive the vehicle, especially under boost.
Conclusion
Turbocharging a 4G63 engine to achieve 500+ hp is an attainable goal with the right modifications and proper tuning. By following the guidelines outlined in this article, enthusiasts can enjoy increased performance while maintaining safety and reliability.