How the Borgwarner S366 Turbo Kit Boosts Power to 480+ Hp on B5 S4

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The B5 S4, a beloved model among car enthusiasts, is known for its performance and tuning potential. One of the most effective upgrades for this vehicle is the BorgWarner S366 Turbo Kit, which can significantly enhance power output, pushing it beyond 480 horsepower. This article explores how the S366 turbo kit achieves this impressive performance boost.

Understanding the BorgWarner S366 Turbo Kit

The BorgWarner S366 turbocharger is designed for high-performance applications, making it an excellent choice for the B5 S4 platform. With its larger compressor and turbine wheels, the S366 can move a significant amount of air, which is essential for increasing horsepower.

  • Compressor Size: The S366 features a 66mm compressor wheel.
  • Turbine Size: It has a 62mm turbine wheel, allowing for quicker spool times.
  • High Efficiency: The design promotes better airflow, reducing lag.

Installation Process

Installing the BorgWarner S366 Turbo Kit on a B5 S4 requires careful planning and execution. Here’s a breakdown of the installation process:

  • Preparation: Gather tools and necessary components for installation.
  • Remove Stock Turbo: Carefully detach the factory turbocharger and associated components.
  • Install New Turbo: Fit the S366 turbo in place, ensuring all connections are secure.
  • Reattach Exhaust and Intake: Connect the exhaust and intake systems to the new turbo.
  • Check for Leaks: Inspect all connections for potential leaks.

Tuning for Maximum Performance

After installing the BorgWarner S366 Turbo Kit, tuning is crucial to unlock its full potential. A proper tune will optimize fuel delivery and ignition timing, ensuring the engine runs smoothly and efficiently.

  • ECU Remapping: Adjust the engine control unit settings for the new turbo.
  • Dyno Testing: Use a dynamometer to measure performance and make necessary adjustments.
  • Monitor Air-Fuel Ratios: Ensure the engine is running at optimal air-fuel ratios.

Performance Gains

The performance gains from the BorgWarner S366 Turbo Kit are impressive. Many B5 S4 owners report reaching over 480 horsepower with supporting modifications. Here’s what contributes to these gains:

  • Increased Airflow: The larger turbo allows for more air into the engine.
  • Higher Boost Levels: The S366 can handle higher boost, increasing power output.
  • Improved Engine Efficiency: Enhanced airflow and tuning lead to better combustion.

Supporting Modifications

To maximize the benefits of the BorgWarner S366 Turbo Kit, several supporting modifications are recommended:

  • Upgraded Fuel Injectors: Provide adequate fuel for increased power.
  • High-Performance Intercooler: Reduces intake temperatures for better performance.
  • Exhaust System Upgrade: Enhances exhaust flow and reduces backpressure.

Conclusion

The BorgWarner S366 Turbo Kit is a game-changer for B5 S4 owners looking to boost their vehicle’s performance. With proper installation, tuning, and supporting modifications, achieving over 480 horsepower is not just a dream but a reality. This upgrade not only enhances power but also elevates the overall driving experience.