Building a 600 Hp 4g63 Eclipse: Turbo Kit, Fuel System, and Internal Upgrades

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The Mitsubishi Eclipse equipped with the 4G63 engine is a popular choice among car enthusiasts looking to build a high-performance vehicle. With the right upgrades, achieving 600 horsepower is within reach. This article will detail the turbo kit, fuel system, and internal upgrades necessary for building a 600 HP 4G63 Eclipse.

Understanding the 4G63 Engine

The 4G63 is a 2.0-liter inline-four engine that has gained a reputation for its strength and tuning potential. It was originally designed for performance and has been used in various Mitsubishi models, including the Eclipse, Galant, and Lancer Evolution. To reach the 600 HP mark, several key components must be upgraded or replaced.

Turbo Kit Selection

The turbocharger is one of the most critical components in achieving high horsepower. Selecting the right turbo kit is essential for maximizing performance. Here are some important factors to consider:

  • Turbo Size: A larger turbo will produce more power but may have a slower spool time.
  • Type of Turbo: Consider a ball-bearing turbo for quicker response times.
  • Intercooler: An upgraded intercooler is necessary to reduce intake temperatures.
  • Exhaust Manifold: A high-flow manifold can improve exhaust flow and turbo response.

Several aftermarket companies offer turbo kits specifically for the 4G63. Popular options include:

  • FP Black Turbo Kit
  • Garrett GT35R Turbo Kit
  • Holset HX35 Turbo Kit

Upgrading the Fuel System

To support higher horsepower levels, the fuel system must be upgraded to provide adequate fuel flow and pressure. Key upgrades include:

  • Fuel Injectors: Upgrade to larger injectors (1000cc or more) to meet fuel demands.
  • Fuel Pump: A high-flow fuel pump is necessary to ensure sufficient fuel delivery.
  • Fuel Pressure Regulator: An adjustable regulator helps maintain optimal pressure.
  • Fuel Lines: Upgrade to larger diameter fuel lines to reduce restrictions.

When upgrading the fuel system, consider these components:

  • Walbro 450 LPH Fuel Pump
  • Injector Dynamics 1000cc Fuel Injectors
  • AEM Adjustable Fuel Pressure Regulator

Internal Engine Upgrades

To handle the increased power and boost levels, internal engine upgrades are crucial. Here are the main components to consider:

  • Pistons: Forged pistons can withstand higher pressures and temperatures.
  • Connecting Rods: Upgrading to forged rods increases strength and reliability.
  • Cylinder Head: Porting and polishing the cylinder head improves airflow.
  • Camshafts: Upgraded camshafts can enhance performance at higher RPMs.

Consider these internal components for your build:

  • Wiseco Forged Pistons
  • Eagle H-Beam Connecting Rods
  • BC Racing Camshafts

Tuning and Management

Once all upgrades are installed, proper tuning is essential to ensure the engine runs efficiently and safely at 600 HP. A standalone engine management system or a high-quality ECU is recommended. Key aspects of tuning include:

  • Air-Fuel Ratio: Maintaining the correct air-fuel ratio is crucial for performance and engine longevity.
  • Ignition Timing: Adjusting ignition timing can improve power and reduce knock.
  • Boost Control: Proper boost control ensures consistent power delivery.

Consider these tuning solutions for your build:

  • ECU Master EMU Black
  • AEM EMS Series 2
  • Link G4+ ECU

Conclusion

Building a 600 HP 4G63 Eclipse requires careful selection of components and thorough knowledge of tuning. By investing in a quality turbo kit, upgrading the fuel system, and enhancing the internal engine components, you can create a powerful and reliable performance vehicle. Always remember to approach modifications with caution and seek professional guidance when necessary.