Achieving 370 Hp with Kinugawa Td05h-20g Turbo on Your Legacy: Tuning and Setup Tips

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Upgrading your Subaru Legacy with a Kinugawa TD05H-20G turbocharger can significantly enhance performance, allowing you to achieve up to 370 horsepower. This article provides essential tuning and setup tips to help you maximize the potential of your turbocharger.

Understanding the Kinugawa TD05H-20G Turbo

The Kinugawa TD05H-20G turbo is a popular choice among Subaru enthusiasts for its ability to deliver substantial power gains. It features a larger compressor wheel and an upgraded turbine, which contribute to improved airflow and performance.

  • Compressor Wheel Size: 20G
  • Turbine Wheel Size: TD05H
  • Boost Potential: Up to 25 PSI

Preparation for Installation

Before installing the Kinugawa TD05H-20G turbo, it’s crucial to prepare your vehicle properly to ensure optimal performance and reliability. Here are the steps to follow:

  • Gather necessary tools and parts.
  • Ensure your engine is in good condition.
  • Consider upgrading supporting mods such as fuel injectors and intercooler.

Required Tools

  • Socket set
  • Torque wrench
  • Boost gauge
  • Fuel pressure gauge

Installation Steps

Installing the Kinugawa TD05H-20G turbo requires attention to detail and following specific steps to ensure a successful setup. Below are the key installation steps:

  • Remove the old turbocharger.
  • Install the new turbocharger, ensuring proper alignment.
  • Connect all necessary oil and coolant lines.
  • Install a new downpipe and exhaust system if necessary.

Tuning Your Legacy for Maximum Performance

After installation, tuning your Legacy is essential to fully utilize the capabilities of the TD05H-20G turbo. Proper tuning ensures the engine runs efficiently and safely at higher power levels.

  • Use an ECU tuning software compatible with your vehicle.
  • Adjust fuel maps to accommodate increased airflow.
  • Set boost levels according to your engine’s capability.
  • Start with a conservative boost level and gradually increase.
  • Monitor air-fuel ratios closely during tuning.
  • Utilize a dyno for precise tuning adjustments.

Supporting Modifications

To achieve and maintain 370 HP, consider additional modifications that complement the turbo upgrade. These enhancements improve overall performance and reliability.

  • High-flow fuel injectors to support increased fuel demand.
  • Upgraded intercooler for better charge air cooling.
  • Performance exhaust system to reduce back pressure.
  • Upgraded ignition system for improved spark delivery.

Monitoring Performance

Once your Legacy is tuned, it’s important to monitor its performance regularly. Keeping an eye on various parameters helps prevent potential issues and ensures your vehicle runs smoothly.

  • Install a boost gauge to monitor boost levels.
  • Use an air-fuel ratio gauge to ensure optimal combustion.
  • Check engine temperature to prevent overheating.

Conclusion

Achieving 370 HP with a Kinugawa TD05H-20G turbo on your Subaru Legacy is possible with the right installation and tuning. By following these tips and ensuring proper modifications, you can enjoy a powerful and reliable performance upgrade.