Maximizing Power with a 1.7l Borgwarner Supercharger on a Turbocharged Subaru Wrx

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The Subaru WRX has long been celebrated for its performance and tuning potential, especially among automotive enthusiasts. With the right modifications, it can deliver exhilarating power and responsiveness. One of the most effective upgrades for maximizing power is the installation of a supercharger. In this article, we will explore how a 1.7L BorgWarner supercharger can enhance the performance of a turbocharged Subaru WRX.

Understanding Supercharging vs. Turbocharging

Before diving into the specifics of the BorgWarner supercharger, it’s essential to understand the differences between supercharging and turbocharging. Both systems aim to increase the engine’s air intake, thereby enhancing power output, but they operate differently.

  • Supercharging: A supercharger is mechanically driven by the engine’s crankshaft, providing immediate boost and power.
  • Turbocharging: A turbocharger utilizes exhaust gases to spin a turbine, which then compresses the intake air. It can result in turbo lag, as power delivery is not instantaneous.

The combination of both systems can yield impressive results, and many WRX owners are turning to supercharging as a way to enhance their turbocharged setups.

Why Choose a 1.7L BorgWarner Supercharger?

The 1.7L BorgWarner supercharger is a popular choice among Subaru WRX enthusiasts for several reasons:

  • Compact Size: The 1.7L unit is compact, making it easier to fit into the engine bay without significant modifications.
  • High Efficiency: BorgWarner superchargers are known for their efficiency, providing a strong power increase without excessive heat generation.
  • Reliability: BorgWarner has a reputation for building durable and reliable superchargers, ensuring long-term performance.
  • Custom Tuning: The supercharger can be tuned to work harmoniously with the existing turbo system, allowing for a balanced power delivery.

These features make the 1.7L BorgWarner supercharger an excellent choice for those looking to maximize the power of their WRX.

Installation Process

Installing a supercharger on your Subaru WRX requires careful planning and execution. Below are the key steps involved in the installation process:

  • Preparation: Gather all necessary tools and parts, including the supercharger kit, gaskets, hoses, and tuning software.
  • Remove Components: Begin by removing the intake manifold, turbocharger, and any other components obstructing access to the engine.
  • Install the Supercharger: Mount the BorgWarner supercharger in the designated location, ensuring all brackets and fittings are secure.
  • Connect the System: Attach the intake and outlet hoses, as well as any necessary coolant lines.
  • Tuning: After installation, it’s crucial to tune the engine management system to accommodate the new supercharger setup.

Following these steps will ensure a successful installation of the 1.7L BorgWarner supercharger on your WRX.

Performance Gains

One of the most exciting aspects of adding a supercharger to your turbocharged WRX is the performance gains you can expect. Here are some potential benefits:

  • Increased Horsepower: Many users report gains of 50-100 horsepower, depending on the tuning and supporting modifications.
  • Improved Torque: The supercharger provides a significant boost in low-end torque, enhancing acceleration and drivability.
  • Smoother Power Delivery: The combination of turbo and supercharging leads to a more linear power curve, reducing the feeling of turbo lag.
  • Enhanced Throttle Response: Superchargers deliver boost immediately, resulting in quicker throttle response and a more engaging driving experience.

These performance gains can transform your WRX into a formidable machine on the road or track.

Considerations and Challenges

While the benefits of a 1.7L BorgWarner supercharger are compelling, there are also considerations and challenges to keep in mind:

  • Cost: The initial investment for a supercharger kit and installation can be significant.
  • Maintenance: Superchargers require regular maintenance to ensure optimal performance and longevity.
  • Potential for Engine Stress: Increased power can lead to greater stress on engine components, making it essential to monitor engine health.
  • Insurance Considerations: Modifications may affect your insurance policy, so it’s advisable to check with your provider.

Being aware of these factors will help you make an informed decision about supercharging your WRX.

Conclusion

Maximizing the power of a turbocharged Subaru WRX with a 1.7L BorgWarner supercharger can lead to thrilling performance and an engaging driving experience. With careful installation and tuning, this upgrade can provide significant horsepower and torque gains while improving throttle response. However, it’s essential to consider the associated costs and maintenance requirements. For those ready to take their WRX to the next level, a supercharger can be a game-changing addition.