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The A90 Toyota Supra is a remarkable vehicle, known for its impressive performance and sleek design. However, for enthusiasts looking to push the limits, modifying the Supra’s B58 engine can elevate its power significantly. This guide will walk you through the process of upgrading your A90 Supra from stock to 550 horsepower using ARB intercoolers and high-flow turbos.
Understanding the A90 Supra B58 Engine
The B58 engine is a 3.0-liter inline-six turbocharged engine that has garnered praise for its smooth power delivery and tuning potential. Before diving into modifications, it’s essential to understand its components and capabilities.
- Engine Type: Inline-six, turbocharged
- Stock Power Output: Approximately 335 hp
- Torque: 365 lb-ft
Step 1: Upgrading the Intercooler
The first step in increasing your Supra’s horsepower is upgrading the intercooler. The ARB intercooler is designed to improve cooling efficiency, allowing for denser air intake and better performance.
- Remove the stock intercooler.
- Install the ARB intercooler, ensuring all connections are secure.
- Check for any leaks and make sure the installation is airtight.
Step 2: Installing a High-Flow Turbo
After upgrading the intercooler, the next vital modification is installing a high-flow turbo. This component is crucial for increasing airflow and boosting horsepower.
- Remove the stock turbocharger.
- Install the high-flow turbo, ensuring proper alignment with the exhaust manifold.
- Connect all necessary lines and ensure they are secure.
Step 3: Tuning the ECU
With the new intercooler and turbo installed, tuning the ECU is essential for maximizing performance. Proper tuning adjusts the air-fuel ratio and ignition timing to accommodate the new components.
- Connect the vehicle to a tuning software.
- Adjust parameters for the intercooler and high-flow turbo.
- Run a diagnostic check to ensure all systems are functioning correctly.
Step 4: Upgrading Supporting Mods
To support the increased power, consider upgrading additional components. These supporting mods can enhance reliability and performance.
- High-performance fuel injectors
- Upgraded fuel pump
- Enhanced exhaust system
Step 5: Testing and Fine-Tuning
After all modifications are complete, it’s crucial to test the vehicle. This step ensures that everything is functioning as intended and allows for fine-tuning if necessary.
- Take the vehicle for a test drive.
- Monitor performance metrics using diagnostic tools.
- Make adjustments to the tune as needed.
Conclusion
Upgrading your A90 Supra B58 to 550 hp is an exciting journey that requires careful planning and execution. By following this step-by-step guide and utilizing quality components like ARB intercoolers and high-flow turbos, you can achieve impressive performance gains and enjoy the thrill of driving a modified Supra.