G Eclipse Power Gains: Achieving 300+ Hp with a Built 4g63 and Supporting Mods ($4,000)

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The Mitsubishi Eclipse has long been a favorite among car enthusiasts and tuners alike, especially when it comes to the 4G63 engine. This engine, known for its robust performance and tuning potential, can be pushed to deliver over 300 horsepower with the right modifications. In this article, we will explore how to achieve these impressive power gains with a built 4G63 engine and supporting modifications, all within a budget of $4,000.

Understanding the 4G63 Engine

The 4G63 engine is a 2.0-liter inline-four engine that has gained a reputation for its durability and performance capabilities. It was used in various Mitsubishi models, including the Eclipse, Talon, and Galant. The engine’s design allows for significant modifications, making it a popular choice for those looking to increase horsepower.

Key Modifications for Power Gains

To achieve over 300 horsepower from a built 4G63, several key modifications are necessary. Below are the essential upgrades that will help you reach your power goals:

  • Forged Internals: Upgrading to forged pistons and connecting rods will allow the engine to handle higher boost levels and power outputs.
  • Upgraded Turbocharger: A larger turbocharger will significantly increase airflow and boost pressure, essential for achieving high horsepower.
  • Fuel System Upgrades: Installing larger fuel injectors and a high-flow fuel pump will ensure that the engine receives enough fuel to support the increased power.
  • ECU Tuning: A proper tune is critical to optimize performance and ensure the engine runs smoothly with the new modifications.
  • Intercooler Upgrade: A larger intercooler will help reduce intake temperatures, improving performance and preventing knock.

Budget Breakdown

Staying within a $4,000 budget while achieving significant power gains requires careful planning and prioritization of modifications. Here’s a breakdown of potential costs for each modification:

  • Forged Internals: $1,200
  • Upgraded Turbocharger: $800
  • Fuel System Upgrades: $600
  • ECU Tuning: $400
  • Intercooler Upgrade: $500
  • Miscellaneous Costs: $500 (gaskets, fluids, labor)

Step-by-Step Modification Process

To ensure a successful build, follow these steps when modifying your 4G63 engine:

  • Step 1: Disassemble the Engine – Remove the engine from the vehicle and disassemble it carefully.
  • Step 2: Install Forged Internals – Replace the stock pistons and rods with forged components.
  • Step 3: Upgrade the Turbocharger – Install the new turbo and ensure proper fitment and connections.
  • Step 4: Upgrade the Fuel System – Install larger injectors and a high-flow fuel pump.
  • Step 5: Install the Intercooler – Fit the larger intercooler and ensure all piping is secure.
  • Step 6: ECU Tuning – Use a reputable tuner to adjust the ECU settings for optimal performance.

Performance Expectations

With the modifications outlined above, you can expect to achieve over 300 horsepower from your built 4G63 engine. Performance will vary based on tuning and supporting modifications, but many enthusiasts report impressive results once the build is complete.

Conclusion

Achieving 300+ horsepower from a built 4G63 engine is an attainable goal for car enthusiasts looking to enhance their Mitsubishi Eclipse. By carefully selecting modifications and staying within budget, you can enjoy the thrill of driving a powerful and reliable vehicle. The journey of building your engine can be rewarding, providing both satisfaction and performance on the road.