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The Mitsubishi 4G63 engine has long been a favorite among car enthusiasts, particularly those who own the Eclipse. With a solid foundation, this engine can be modified to reach impressive horsepower levels without breaking the bank. In this article, we will explore cost-effective modifications that can help you achieve 450 horsepower using the MHI TD05-20G turbocharger.
Understanding the 4G63 Engine
The 4G63 is a 2.0-liter inline-4 engine that has powered various Mitsubishi models, including the Eclipse, Talon, and Lancer. Known for its robust design and tuning potential, the 4G63 has gained a reputation in the tuning community. To achieve significant horsepower gains, it’s crucial to understand the engine’s components and how they interact.
Key Engine Components
- Block: The aluminum block houses the engine’s internals and is capable of handling increased power.
- Cylinder Head: The DOHC design allows for better airflow and performance.
- Pistons: Upgrading to forged pistons can help withstand higher boost levels.
- Connecting Rods: Stronger rods are essential for high horsepower applications.
Choosing the Right Turbocharger
The MHI TD05-20G turbocharger is a popular choice for those looking to push their 4G63 engine to 450 horsepower. This turbo offers a good balance of spool time and top-end power, making it suitable for street and track use. Here are some features that make it an excellent option:
- Flow Capacity: Capable of supporting up to 500 horsepower.
- Response: Quick spool time for better throttle response.
- Durability: Built with quality materials to withstand high temperatures and pressures.
Essential Modifications for 450 HP
To achieve 450 horsepower with the 4G63 engine and MHI TD05-20G turbo, several modifications are necessary. Below is a list of essential upgrades:
- Fuel System Upgrade: Install larger fuel injectors (around 750cc) and a high-flow fuel pump to ensure adequate fuel delivery.
- ECU Tuning: A proper tune is crucial to optimize fuel and timing for the new setup.
- Intercooler: Upgrade to a larger front-mount intercooler to reduce intake temperatures.
- Exhaust System: A 3-inch turbo-back exhaust will improve flow and reduce back pressure.
- Intake System: A high-flow intake system will help the engine breathe better.
Cost Considerations
While modifying your 4G63 engine to reach 450 horsepower can be exciting, it’s essential to keep costs in check. Here’s a breakdown of potential expenses:
- MHI TD05-20G Turbo: $800 – $1,200
- Fuel Injectors: $300 – $500
- Fuel Pump: $100 – $200
- ECU Tuning: $400 – $800
- Intercooler: $300 – $600
- Exhaust System: $400 – $700
- Intake System: $200 – $400
Final Thoughts
Achieving 450 horsepower with a 4G63 engine and MHI TD05-20G turbo is an attainable goal for car enthusiasts looking to enhance their Mitsubishi Eclipse. With the right modifications and careful planning, you can enjoy a powerful and reliable vehicle without overspending. Remember to prioritize quality parts and professional tuning to ensure the best performance from your setup.