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The 4G63 engine has earned a legendary status among car enthusiasts, particularly for its performance in drag racing. This turbocharged inline-four engine, originally found in the Mitsubishi Eclipse, Galant, and Lancer, has become a favorite for those looking to build a high-performance drag car. In this article, we will explore the optimal power levels, essential supporting modifications, and durability tips to help you build a successful 4G63 drag car.
Understanding Power Levels
When building a 4G63 drag car, understanding the power levels you want to achieve is crucial. The engine’s potential can vary significantly based on the modifications you implement. Here are some common power levels and what they generally require:
- Stock Power (150-190 HP): This is the factory output, suitable for daily driving but not competitive in drag racing.
- Moderate Build (250-350 HP): Achievable with basic mods like a bigger turbo, upgraded intercooler, and improved exhaust.
- High Performance (400-500 HP): Requires extensive modifications including forged internals, advanced tuning, and a larger turbo setup.
- Extreme Power (600 HP+): This level demands serious upgrades, such as a built engine, high-flow fuel system, and advanced engine management systems.
Supporting Mods for Enhanced Performance
To reach your desired power levels, several supporting modifications are essential. Here’s a breakdown of the key components:
Turbocharger Upgrade
Upgrading the turbocharger is one of the most effective ways to increase horsepower. A larger turbo will allow for more air intake, resulting in higher power output. Consider options like:
- Garrett GT30 or GT35 series turbos
- Holset HX35 or HX40 turbos
Fuel System Enhancements
A high-performance fuel system is vital for supporting increased power levels. Upgrades should include:
- Upgraded fuel injectors (1000cc or larger)
- High-flow fuel pump (e.g., Walbro 255)
- Adjustable fuel pressure regulator
Engine Management
Proper tuning is critical for maximizing performance and reliability. Options for engine management include:
- ECU reflash or chip tuning
- Standalone engine management systems (e.g., AEM, Megasquirt)
Exhaust System
An efficient exhaust system can significantly improve engine performance. Consider the following upgrades:
- 3-inch turbo-back exhaust
- High-flow catalytic converter or test pipe
- Performance muffler for reduced back pressure
Intake Upgrades
Improving the intake system allows for better airflow into the engine. Key components to consider include:
- High-performance intake manifold
- Aftermarket air filter (e.g., K&N)
- Front-mount intercooler for better charge cooling
Durability Tips for Drag Racing
Building a powerful 4G63 drag car is not just about achieving high horsepower; it’s also about ensuring the engine can handle the stress of racing. Here are some durability tips:
Forged Internals
For high horsepower builds, consider upgrading to forged pistons and connecting rods. These components can withstand higher levels of boost and stress than stock parts.
Cooling System Upgrades
Maintaining optimal engine temperatures is crucial. Upgrade your cooling system with:
- High-performance radiator
- Upgraded water pump
- Oil cooler for better oil temperature management
Regular Maintenance
Regular maintenance is key to longevity. Ensure you perform:
- Frequent oil changes with high-quality synthetic oil
- Inspection of all critical components (belts, hoses, etc.)
- Keep the engine tuned for optimal performance
Conclusion
Building a 4G63 drag car requires careful planning and execution. By understanding power levels, implementing supporting modifications, and following durability tips, you can create a competitive drag car that stands out on the track. Remember, the journey of building your car is just as important as the end result. Happy racing!