Installing the Garrett Gt28rs on Your Rx-8: a Comprehensive Step-by-step Guide

Installing a Garrett GT28RS turbocharger on your Mazda RX-8 can significantly enhance its performance. This comprehensive step-by-step guide will help you through the installation process, ensuring you achieve the best results.

Tools and Materials Needed

  • Garrett GT28RS Turbocharger
  • Turbo manifold
  • Oil feed line
  • Oil drain line
  • Intercooler piping
  • Silicone couplers
  • Boost controller (optional)
  • Basic hand tools (wrenches, sockets, etc.)
  • Torque wrench
  • Shop towels
  • Engine oil

Preparation

Before starting the installation, ensure that your RX-8 is parked on a level surface and the engine is cool. Disconnect the negative battery terminal to prevent any electrical issues during the installation.

Removing the Stock Components

Begin by removing the stock intake system. This includes the air filter, intake piping, and throttle body. Make sure to label any hoses or connectors you remove to make reassembly easier.

Next, remove the stock exhaust manifold. This may require loosening the bolts and carefully maneuvering the manifold out of the engine bay. Be cautious of any remaining gaskets or seals that may need to be replaced.

Disconnecting the Fuel Lines

Before proceeding, disconnect the fuel lines from the fuel rail. Use caution, as fuel may spill during this process. Have shop towels ready to clean up any spills.

Installing the Garrett GT28RS

With the stock components removed, it’s time to install the Garrett GT28RS turbocharger. Begin by attaching the turbo to the new turbo manifold. Ensure that all bolts are tightened to the manufacturer’s specifications using a torque wrench.

Connecting the Oil Lines

Next, connect the oil feed and drain lines to the turbocharger. The oil feed line typically connects to the engine’s oil gallery, while the drain line should route back to the oil pan. Ensure all connections are secure to prevent leaks.

Intercooler Setup

Install the intercooler piping, ensuring that all silicone couplers are properly seated. This is crucial for maintaining boost pressure and preventing leaks. If you are using a boost controller, install it at this stage as well.

Reassembling the Engine Bay

Once the turbo and intercooler are installed, reattach the intake system. Make sure to reconnect the throttle body and any other components you removed earlier. Double-check all connections and ensure that everything is secure.

Final Checks and Startup

Before starting the engine, reconnect the negative battery terminal. Perform a final check of all connections, ensuring there are no loose bolts or leaks in the oil and intercooler lines.

Start the engine and allow it to idle for a few minutes. Monitor for any unusual sounds or leaks. If everything appears normal, take the vehicle for a test drive to ensure the turbo is functioning correctly.

Maintenance Tips

  • Regularly check oil levels and change oil as needed.
  • Inspect the turbo and intercooler connections for leaks.
  • Monitor boost levels to ensure proper performance.
  • Keep the air filter clean to maximize airflow.

Conclusion

Installing a Garrett GT28RS on your RX-8 can dramatically improve your vehicle’s performance. By following this step-by-step guide, you can ensure a successful installation and enjoy the benefits of increased power and efficiency.