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The A90 Toyota Supra, equipped with the B58 engine, has captured the hearts of car enthusiasts worldwide. With its blend of performance and style, many owners seek to enhance its capabilities. This guide will walk you through the steps necessary to modify your A90 Supra from stock to an impressive 550 horsepower.
Understanding the B58 Engine
The B58 engine is a 3.0-liter inline-six turbocharged powerhouse. Known for its smooth power delivery and robust performance, it provides a solid foundation for modifications. Understanding its components will aid in the modification process.
- Engine block
- Cylinder head
- Turbocharger
- Fuel injectors
- Intercooler
Step 1: Initial Modifications
Before diving into major modifications, start with basic upgrades that enhance performance without compromising reliability. These initial steps will set the stage for further enhancements.
- Install a high-flow air intake system.
- Upgrade the exhaust system for better airflow.
- Reflash the ECU with a performance tune.
Step 2: Turbocharger Upgrade
To reach the 550 hp goal, upgrading the turbocharger is essential. A larger turbo will provide more boost and increase power output significantly.
- Select a turbocharger compatible with the B58 engine.
- Install supporting modifications such as a new wastegate.
- Ensure proper tuning to handle increased boost levels.
Step 3: Fuel System Upgrades
As power increases, so does the demand for fuel. Upgrading the fuel system is crucial for maintaining performance and reliability.
- Install larger fuel injectors to deliver more fuel.
- Upgrade the fuel pump to support higher flow rates.
- Consider a fuel pressure regulator for optimal performance.
Step 4: Cooling System Enhancements
Increased power generates more heat. Enhancing the cooling system ensures the engine operates within safe temperatures.
- Install a larger intercooler to reduce intake temperatures.
- Upgrade the radiator for better cooling efficiency.
- Consider adding an oil cooler to maintain optimal oil temperatures.
Step 5: Suspension and Handling Improvements
With increased power, handling becomes critical. Upgrading the suspension ensures the vehicle can effectively harness the added horsepower.
- Install coilovers for adjustable ride height and improved handling.
- Upgrade sway bars to reduce body roll.
- Consider performance tires for better grip.
Step 6: Final Tuning and Testing
After all modifications are complete, a final tune is necessary to ensure everything works harmoniously. Professional tuning can maximize performance and reliability.
- Use a dynamometer to measure power output.
- Adjust the ECU settings for optimal performance.
- Test drive the vehicle to ensure proper functionality.
Conclusion
Modifying your A90 Supra B58 to achieve 550 horsepower is an exciting journey. By following this step-by-step guide, you can enhance your vehicle’s performance while maintaining reliability. Always prioritize quality parts and professional assistance when necessary for the best results.