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Achieving over 600 horsepower in your B5 S4 with the Mitsu TD05H-20G turbocharger is an exciting project for any performance enthusiast. This guide will walk you through the essential steps for tuning and installing this turbo to maximize your vehicle’s potential.
Understanding the Mitsu TD05H-20G Turbocharger
The Mitsu TD05H-20G is a popular choice among B5 S4 owners looking to significantly boost their vehicle’s performance. Known for its reliability and efficiency, this turbocharger can deliver impressive power when paired with the right supporting modifications.
- Compressor Wheel: 20G size for increased airflow
- Exhaust Housing: Designed for optimal spool time
- Durability: Built to withstand high boost levels
Preparation for Installation
Before diving into the installation process, ensure you have all necessary tools and parts ready. A well-planned approach will save you time and effort.
- Tools Required:
- Socket set
- Wrench set
- Torque wrench
- Boost gauge
- Parts Required:
- Mitsu TD05H-20G turbocharger
- Upgraded intercooler
- High-flow fuel injectors
- Aftermarket fuel pump
Installation Steps
Step 1: Remove the Old Turbocharger
Start by safely lifting your B5 S4 and securing it on jack stands. Disconnect the battery and remove the old turbocharger by following these steps:
- Remove the intake piping and air filter.
- Disconnect the oil feed and drain lines.
- Unbolt the turbo from the manifold and exhaust.
Step 2: Install the Mitsu TD05H-20G
With the old turbo removed, it’s time to install the Mitsu TD05H-20G. Ensure you have new gaskets for a proper seal.
- Position the turbo on the manifold and secure it with bolts.
- Reconnect the oil feed and drain lines.
- Install the intake piping and air filter.
Step 3: Upgrade Supporting Components
To achieve the desired horsepower, upgrading supporting components is crucial. Consider the following:
- Install a larger intercooler for improved cooling.
- Upgrade to high-flow fuel injectors for better fuel delivery.
- Install an aftermarket fuel pump to support increased power demands.
Tuning Your B5 S4
Tuning is essential to ensure your vehicle runs smoothly and efficiently with the new turbocharger. A proper tune will optimize fuel delivery and ignition timing.
- Use a reputable tuning software or service.
- Adjust fuel maps for increased airflow.
- Monitor boost levels to avoid overboosting.
Testing and Final Adjustments
After installation and tuning, it’s important to test your B5 S4 to ensure everything is functioning correctly. Follow these steps:
- Start the engine and check for leaks.
- Monitor boost levels during a test drive.
- Make any necessary adjustments to the tune based on performance.
Conclusion
Achieving 600+ horsepower with the Mitsu TD05H-20G on your B5 S4 is an ambitious but rewarding project. With careful installation and tuning, you can enjoy the exhilarating performance that comes with this upgrade. Remember to always prioritize safety and reliability as you push the limits of your vehicle.