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The Subaru BRZ, equipped with the FA20 engine, is known for its lightweight design and agile handling. However, enthusiasts often seek ways to enhance its performance. Upgrading to a Turbosmart Blow-Off Valve (BOV) and an intercooler can significantly improve power output and driving experience.
Understanding the FA20 Engine
The FA20 engine, a flat-four, naturally aspirated powerplant, delivers a balanced combination of power and efficiency. However, it has limitations in terms of power output, particularly for performance enthusiasts. Understanding the engine’s capabilities is crucial for effective upgrades.
The Role of the Turbosmart BOV
A Blow-Off Valve (BOV) is an essential component in forced induction systems. The Turbosmart BOV is designed to release excess pressure in the intake system when the throttle is closed, preventing compressor surge and improving turbo response.
Benefits of Upgrading to a Turbosmart BOV
Upgrading to a Turbosmart BOV offers several advantages:
- Improved Turbo Response: The BOV allows for quicker turbo spool and enhanced throttle response.
- Increased Reliability: Reduces stress on the turbocharger and engine components.
- Customizable Sound: Offers a unique sound that many enthusiasts appreciate.
Enhancing Performance with an Intercooler
An intercooler is a critical component for any turbocharged or supercharged engine, as it helps to cool the intake air, leading to denser air and improved combustion efficiency. Upgrading the intercooler in the BRZ can provide substantial power gains.
Advantages of a High-Performance Intercooler
Investing in a high-performance intercooler can yield the following benefits:
- Lower Intake Temperatures: Cooler air leads to better combustion and more power.
- Increased Power Output: Enhanced cooling can lead to significant horsepower gains.
- Improved Engine Efficiency: A more efficient engine means better fuel economy and performance.
Combining Upgrades for Maximum Gains
When combined, a Turbosmart BOV and an upgraded intercooler create a synergistic effect, maximizing the performance of the BRZ FA20. The BOV enhances turbo response, while the intercooler ensures that the intake air remains cool and dense.
Expected Power Gains
Enthusiasts who upgrade to a Turbosmart BOV and intercooler can expect noticeable power gains. Here’s a breakdown of potential improvements:
- Horsepower Increase: Gains of 20-30 horsepower are common with proper tuning.
- Torque Improvements: Enhanced low-end torque improves overall drivability.
- Throttle Response: A more responsive throttle enhances the driving experience.
Installation Considerations
Installing a Turbosmart BOV and intercooler requires some mechanical knowledge. Here are key considerations:
- Professional Installation: Consider hiring a professional for the best results.
- Tuning: A proper tune is necessary to maximize the benefits of these upgrades.
- Compatibility: Ensure that the components are compatible with your specific BRZ model.
Conclusion
Upgrading the Subaru BRZ FA20 with a Turbosmart BOV and intercooler can lead to significant power gains and an enhanced driving experience. With improved turbo response and cooler intake temperatures, these upgrades are essential for enthusiasts looking to unlock the full potential of their vehicle.