A90 Supra Turbo Upgrade Installation Guide: Installing the Hks Gt Iii 550+ Hp Kit Step-by-step

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The A90 Supra has made waves in the automotive world with its impressive performance and sleek design. One of the most sought-after upgrades for this vehicle is the turbo upgrade, particularly the HKS GT III 550+ HP Kit. This guide will walk you through the step-by-step installation process, ensuring that you can enhance your Supra’s power and performance effectively.

Tools and Materials Needed

  • Socket set
  • Torque wrench
  • Wrenches
  • Screwdrivers
  • Intercooler piping
  • HKS GT III Turbo Kit
  • Gaskets and seals
  • Coolant and oil
  • Shop towels
  • Safety glasses and gloves

Preparation Steps

Before starting the installation process, it is crucial to prepare your workspace and the vehicle. Follow these steps to ensure a smooth installation:

  • Park the vehicle on a level surface and engage the parking brake.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Drain the coolant and oil from the engine.
  • Remove any engine covers or components that obstruct access to the turbo area.

Removing the Stock Turbo

Once your vehicle is prepped, you can begin removing the stock turbocharger. Follow these steps carefully:

  • Unbolt the exhaust downpipe from the stock turbo.
  • Disconnect the intake piping leading to the turbo.
  • Remove the oil feed and return lines from the turbo.
  • Unplug any electrical connectors attached to the turbo.
  • Unbolt the turbo from the manifold and carefully remove it from the engine bay.

Installing the HKS GT III Turbo

With the stock turbo removed, it’s time to install the HKS GT III Turbo. Follow these steps for a successful installation:

  • Position the HKS GT III Turbo in place and align it with the mounting points on the manifold.
  • Secure the turbo with the provided bolts, ensuring they are tightened to the manufacturer’s specifications.
  • Reconnect the oil feed and return lines, making sure to use new gaskets and seals.
  • Plug in any electrical connectors that were removed.
  • Attach the intake piping to the turbo, ensuring a tight fit.
  • Install the exhaust downpipe to the turbo, securing it with the appropriate hardware.

Connecting the Intercooler and Piping

After the turbo is securely installed, the next step is to connect the intercooler and associated piping. This step is crucial for optimizing performance:

  • Install the intercooler in the designated location, ensuring it is securely mounted.
  • Connect the intercooler piping to the turbo and the throttle body.
  • Check for any leaks or loose connections in the piping.

Finalizing the Installation

With the turbo and intercooler installed, it’s time to finalize the installation:

  • Reinstall any engine covers or components that were removed earlier.
  • Refill the engine with oil and coolant.
  • Reconnect the negative battery terminal.
  • Start the engine and check for any leaks or unusual noises.
  • Allow the engine to reach operating temperature and monitor performance.

Testing and Tuning

After installation, it is essential to test and tune your A90 Supra to ensure optimal performance:

  • Take the car for a test drive to assess performance and responsiveness.
  • Use a tuning software or visit a professional tuner to adjust the engine parameters.
  • Monitor boost levels and engine temperatures during testing.

Conclusion

Upgrading your A90 Supra with the HKS GT III 550+ HP Kit can significantly enhance its performance. By following this step-by-step installation guide, you can ensure a successful upgrade that maximizes your vehicle’s potential. Always remember to prioritize safety and consult professionals if unsure about any steps in the process.