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The Subaru Legacy is a well-known vehicle among car enthusiasts, particularly those interested in performance upgrades. One of the most popular modifications for boosting horsepower and improving turbo response is the installation of a TD04HL-13T turbocharger. This article will guide you through the process of upgrading to this turbo for faster spool and an impressive 290 horsepower.
Understanding the TD04HL-13T Turbocharger
The TD04HL-13T turbocharger is a significant upgrade over the stock turbo found in many Legacy models. It offers a larger compressor wheel and improved airflow, which translates to quicker spool times and increased power output. Here are some key features:
- Increased compressor size for better airflow.
- Faster spool time for improved throttle response.
- Higher horsepower potential, reaching up to 290 HP.
Preparing for Installation
Before diving into the installation process, it’s essential to gather all necessary tools and parts. Preparation will make the installation smoother and more efficient. Here’s what you will need:
- TD04HL-13T Turbocharger
- New gaskets and hardware
- Basic hand tools (sockets, wrenches, etc.)
- Torque wrench
- Oil and coolant for refilling
Ensure your vehicle is parked on a flat surface and has cooled down before starting the installation process. Safety is paramount, so wear protective gear and follow proper safety procedures.
Step-by-Step Installation Guide
1. Remove the Stock Turbocharger
To begin with, disconnect the battery to avoid any electrical issues. Next, follow these steps to remove the stock turbo:
- Remove the intake and exhaust piping connected to the stock turbo.
- Unbolt the turbo from the exhaust manifold and remove any associated hardware.
- Carefully detach the oil and coolant lines from the stock turbo.
- Remove the stock turbo from the engine bay.
2. Install the TD04HL-13T Turbocharger
With the stock turbo removed, it’s time to install the new TD04HL-13T. Follow these steps:
- Place the new turbo onto the exhaust manifold and secure it with the new hardware.
- Reconnect the oil and coolant lines, ensuring there are no leaks.
- Attach the intake and exhaust piping to the new turbo.
- Double-check all connections and fittings for security.
3. Reconnect the Battery and Check for Leaks
Once the turbo is securely installed, reconnect the battery. Start the engine and let it idle while checking for any leaks in the oil and coolant lines. Address any issues before proceeding.
Tuning for Optimal Performance
After successfully installing the TD04HL-13T turbo, tuning your vehicle is crucial to maximize performance. A proper tune will ensure the engine runs efficiently and safely. Here are some considerations:
- Consider an ECU remap to accommodate the new turbo.
- Monitor air-fuel ratios to prevent lean conditions.
- Use a dyno to measure horsepower and torque gains.
Conclusion
Upgrading to a TD04HL-13T turbocharger is an excellent way to enhance the performance of your Subaru Legacy. With faster spool times and the potential for 290 horsepower, this modification can significantly improve your driving experience. By following the installation guide and ensuring proper tuning, you can enjoy the benefits of this turbo upgrade for years to come.