Upgrading to a Garrett Gt28r Turbo on Your Miata: Installation and Power Potential

Upgrading to a Garrett GT28R turbocharger on your Miata can significantly enhance its performance and driving experience. This article will guide you through the installation process and discuss the power potential of this upgrade.

Why Upgrade to a Garrett GT28R Turbo?

The Garrett GT28R turbocharger is known for its efficiency and responsiveness. Here are some reasons why you might consider this upgrade:

  • Increased Power: The GT28R can provide a significant boost in horsepower, making your Miata more exhilarating to drive.
  • Better Torque Delivery: This turbo allows for improved torque at lower RPMs, enhancing drivability.
  • Reliability: Garrett turbos are known for their durability and performance consistency.

Preparation for Installation

Before starting the installation, gather all necessary tools and parts. Here’s a checklist to help you prepare:

  • Garrett GT28R turbocharger
  • Turbo manifold
  • Oil feed and return lines
  • Intercooler and piping
  • ECU tuning software
  • Basic hand tools (wrenches, sockets, etc.)

Installation Steps

Step 1: Remove the Existing Turbo

Start by disconnecting the battery. Then, remove the stock turbocharger and any associated components such as the exhaust manifold and downpipe.

Step 2: Install the Turbo Manifold

Attach the turbo manifold to the engine block. Ensure that all bolts are tightened to the manufacturer’s specifications.

Step 3: Mount the Garrett GT28R Turbo

Carefully mount the Garrett GT28R turbo onto the manifold. Connect the oil feed and return lines, ensuring there are no leaks.

Step 4: Install the Intercooler

Position the intercooler in front of the radiator and connect the piping from the turbo to the intercooler and from the intercooler to the intake manifold.

Step 5: ECU Tuning

After the installation, it’s crucial to tune the ECU to accommodate the new turbo setup. Use tuning software to adjust fuel maps and boost levels.

Power Potential of the Garrett GT28R Turbo

With the Garrett GT28R turbo installed, you can expect a notable increase in power. Here’s what you might achieve:

  • Horsepower Gains: Depending on the setup, gains of 50-100 horsepower are common.
  • Torque Improvements: Torque can see a significant increase, enhancing acceleration and responsiveness.
  • Boost Levels: Typical boost levels can range from 10-15 psi, depending on tuning and supporting modifications.

Conclusion

Upgrading to a Garrett GT28R turbocharger can transform your Miata into a powerful and thrilling machine. With proper installation and tuning, you can unlock significant performance potential and enjoy a more engaging driving experience.