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The Toyota MR2 Turbo SW20 is a beloved sports car known for its lightweight design and agile handling. To enhance its performance and achieve over 400 horsepower, many enthusiasts turn to turbo upgrades. One popular choice is the Garrett T3/T4 turbo upgrade, which offers significant power gains and improved efficiency.
Understanding the Garrett T3/T4 Turbo
The Garrett T3/T4 turbocharger is a hybrid unit that combines the best features of two different turbo designs. It provides a balance of quick spool time and high-end power, making it ideal for performance applications like the MR2 Turbo SW20.
Key Features of the Garrett T3/T4 Turbo
- Hybrid design for improved spool and efficiency.
- Capable of supporting over 400 horsepower.
- Durable construction for longevity.
- Wide range of turbine and compressor options.
Benefits of Upgrading to a Garrett T3/T4 Turbo
Upgrading to a Garrett T3/T4 turbocharger can provide numerous benefits for your MR2 Turbo SW20. These advantages include improved acceleration, higher top speed, and enhanced overall driving experience.
- Increased Horsepower: Achieve over 400 horsepower with proper tuning and supporting modifications.
- Better Torque Delivery: Experience a more responsive throttle and improved torque curve.
- Enhanced Boost Control: Fine-tune your boost levels for optimal performance.
- Improved Efficiency: Higher efficiency can lead to better fuel economy under certain conditions.
Installation Process
Installing a Garrett T3/T4 turbo on your MR2 Turbo SW20 requires careful planning and execution. Here’s a general overview of the installation process:
- Preparation: Gather all necessary tools and parts, including gaskets, oil lines, and wastegate.
- Remove Old Turbo: Disconnect the existing turbo and remove it from the engine bay.
- Install New Turbo: Mount the Garrett T3/T4 turbo, ensuring proper alignment and sealing.
- Connect Oil Lines: Attach the oil feed and return lines to the new turbo.
- Reassemble Components: Put back any components removed during the installation.
- Tuning: After installation, it’s crucial to tune the engine for optimal performance with the new turbo.
Supporting Modifications
To maximize the potential of your Garrett T3/T4 turbo upgrade, consider additional modifications to support the increased power output. These upgrades can help ensure reliability and performance.
- Upgraded Fuel System: Install larger injectors and a high-flow fuel pump to meet the increased fuel demands.
- Intercooler Upgrade: A larger intercooler can help reduce intake temperatures and improve performance.
- Exhaust System: A high-flow exhaust system will reduce back pressure and improve turbo efficiency.
- Engine Management: Use a standalone or piggyback ECU to properly tune the engine for the new setup.
Common Issues and Solutions
While upgrading to a Garrett T3/T4 turbo can yield great performance gains, there are common issues that may arise. Being aware of these can help mitigate potential problems.
- Boost Leaks: Ensure all connections are tight and check for leaks in the intake system.
- Oil Starvation: Verify that oil lines are correctly installed and not kinked.
- Overheating: Monitor coolant levels and consider upgrading the cooling system if necessary.
- Engine Knock: Use high-octane fuel and proper tuning to prevent detonation.
Conclusion
Upgrading your MR2 Turbo SW20 with a Garrett T3/T4 turbocharger is an excellent way to unlock its full potential and achieve over 400 horsepower. With the right installation and supporting modifications, you can enjoy a thrilling driving experience that takes full advantage of this iconic sports car’s capabilities.