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The Mitsubishi Eclipse GST is a popular choice among car enthusiasts looking to enhance performance. One of the most significant upgrades you can make is to replace the stock turbocharger with a high-performance unit. This guide will walk you through upgrading your Eclipse GST turbocharger to achieve over 400 horsepower using Garrett or Precision turbochargers.
Understanding Turbocharger Basics
Before diving into the upgrade process, it’s essential to understand how turbochargers work. A turbocharger uses exhaust gases to spin a turbine, which compresses incoming air, increasing the engine’s power output.
Benefits of Upgrading Your Turbocharger
Upgrading to a high-performance turbocharger offers several advantages:
- Increased horsepower and torque
- Improved throttle response
- Better efficiency at higher RPMs
- Enhanced tuning potential
Choosing the Right Turbocharger
When selecting a turbocharger for your Eclipse GST, two of the most reputable brands are Garrett and Precision. Both offer a range of units suitable for high horsepower applications.
Garrett Turbochargers
Garrett turbochargers are known for their reliability and performance. Popular choices for the Eclipse GST include:
- Garrett GT3076R
- Garrett GTX2867R
Precision Turbochargers
Precision turbochargers are also a favored option among enthusiasts, offering excellent boost response and power. Notable models include:
- Precision PT6262
- Precision PT5858
Upgrading Your Turbocharger
Once you have chosen a turbocharger, the next step is the installation process. Here’s a step-by-step guide:
Tools and Materials Needed
Gather the following tools and materials:
- Socket set
- Wrenches
- Torque wrench
- Boost gauge
- Oil feed and return lines
- New gaskets
- Intercooler piping (if necessary)
Step-by-Step Installation
Follow these steps to install your new turbocharger:
- Disconnect the battery.
- Remove the stock turbocharger and manifold.
- Install new gaskets on the manifold.
- Mount the new turbocharger onto the manifold.
- Connect the oil feed and return lines.
- Attach the intercooler piping.
- Reconnect the battery and check for leaks.
- Start the engine and monitor boost levels.
Tuning Your Eclipse GST
After installing your new turbocharger, tuning your vehicle is crucial to maximize performance. A proper tune ensures your engine runs efficiently and reliably at higher power levels.
Choosing a Tuning Method
There are two primary tuning methods:
- ECU Reflash: A software update to the factory ECU.
- Standalone Engine Management: A complete replacement of the factory ECU for more control.
Finding a Tuner
Look for a tuner with experience in Mitsubishi vehicles and turbo setups. A good tuner will help you achieve the desired horsepower while maintaining engine reliability.
Conclusion
Upgrading your Mitsubishi Eclipse GST turbocharger is an exciting project that can significantly enhance your vehicle’s performance. By choosing the right turbocharger, following the installation steps carefully, and ensuring proper tuning, you can achieve over 400 horsepower and enjoy an exhilarating driving experience.