Achieving 450+ Hp: Upgrading to a Garrett Gt35r Turbo on Your Grand National

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The Buick Grand National is a legendary car known for its performance and turbocharged power. If you’re looking to push your Grand National to achieve over 450 horsepower, upgrading to a Garrett GT35R turbo is a fantastic option. This article will guide you through the benefits, installation process, and tuning considerations for this upgrade.

Benefits of Upgrading to a Garrett GT35R Turbo

Upgrading to a Garrett GT35R turbo offers several advantages for your Grand National. Here are some key benefits:

  • Increased Power: The GT35R turbo can support significantly more horsepower, allowing your Grand National to exceed 450 hp.
  • Improved Efficiency: This turbocharger is designed for optimal airflow, enhancing engine efficiency and performance.
  • Better Boost Response: The GT35R provides quicker spool times, resulting in faster acceleration.
  • Durability: Garrett is known for manufacturing high-quality turbos that can withstand high-performance applications.

Preparing for the Upgrade

Before you proceed with the turbo upgrade, it’s essential to prepare your Grand National properly. Here are the steps to take:

  • Assess Your Current Setup: Check the condition of your engine, transmission, and fuel system to ensure they can handle the increased power.
  • Gather Necessary Parts: In addition to the GT35R turbo, you will need a suitable manifold, intercooler, and upgraded fuel injectors.
  • Consider Supporting Mods: Upgrading your exhaust system and intake can help maximize the benefits of the new turbo.

Installation Process

Installing a Garrett GT35R turbo on your Grand National involves several steps. Here is a general outline of the installation process:

  • Remove the Old Turbo: Disconnect all lines and remove the existing turbocharger from the engine.
  • Install the New Manifold: If you’re using a new manifold, install it according to the manufacturer’s instructions.
  • Mount the GT35R Turbo: Secure the turbocharger to the manifold and connect all necessary lines, including oil and coolant.
  • Install the Intercooler: Position the intercooler and connect it to the turbo and intake system.
  • Upgrade Fuel System: Install larger fuel injectors and ensure your fuel pump can support the increased demand.

Tuning Your Grand National

After installation, tuning is crucial to maximize performance and ensure reliability. Consider the following:

  • ECU Reflash: Update your engine control unit (ECU) to accommodate the new turbo and fuel system.
  • Air-Fuel Ratio: Monitor and adjust your air-fuel ratio for optimal combustion and performance.
  • Boost Levels: Set appropriate boost levels to prevent engine damage while achieving desired horsepower.

Conclusion

Upgrading to a Garrett GT35R turbocharger can elevate your Buick Grand National’s performance to new heights, allowing you to achieve over 450 horsepower. With the right preparation, installation, and tuning, you can enjoy the thrills of enhanced power and efficiency on the road. Always remember to consult with professionals if you’re unsure about any part of the process to ensure a successful upgrade.