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The Subaru WRX is a popular choice among car enthusiasts, especially when it comes to performance upgrades. One of the most significant modifications is converting to E85 fuel, which can enhance power and efficiency. However, to ensure the longevity of your WRX after this conversion, it’s crucial to select reliable boost controllers and intercoolers. This article will explore the best options available and their importance in maintaining your vehicle’s performance.
Understanding E85 Fuel and Its Benefits
E85 is a blend of 85% ethanol and 15% gasoline, offering several advantages for performance vehicles:
- Higher Octane Rating: E85 has a higher octane rating than regular gasoline, allowing for more aggressive tuning.
- Increased Power: The ethanol content can lead to significant power gains when properly tuned.
- Cleaner Combustion: E85 burns cleaner than gasoline, reducing carbon deposits in the engine.
Boost Controllers: Choosing the Right One
A boost controller is essential for managing the turbocharger’s pressure, ensuring optimal performance and longevity. Here are some reliable options to consider:
- Electronic Boost Controllers: These provide precise control over boost levels and can be adjusted on-the-fly. Popular models include:
- Greddy Profec B Spec II
- TurboSmart e-Boost Street
- Manual Boost Controllers: A more straightforward and cost-effective option. Models to consider are:
- Hallman Pro Boost Controller
- GFB Boost Controller
Benefits of Electronic Boost Controllers
Electronic boost controllers offer several advantages, including:
- Precision Control: Allows for fine-tuning of boost levels for different driving conditions.
- Data Logging: Many models can log data, helping you monitor performance over time.
- Safety Features: Can include features that prevent overboosting, protecting the engine.
Benefits of Manual Boost Controllers
Manual boost controllers are also advantageous, particularly for those on a budget:
- Cost-Effective: Generally less expensive than electronic options.
- Simplicity: Easy to install and operate without complex settings.
- Reliability: Fewer electronic components mean less chance of failure.
Intercoolers: Essential for Cooling Efficiency
After converting to E85 and increasing boost levels, an efficient intercooler is vital for maintaining optimal engine temperatures. Here are some top choices:
- Front Mount Intercoolers: These provide maximum cooling efficiency by placing the intercooler at the front of the vehicle. Recommended brands include:
- Process West
- GrimmSpeed
- Top Mount Intercoolers: A more compact option, suitable for those with limited space. Consider:
- Hyperflow
- STI Intercooler
Advantages of Front Mount Intercoolers
Front mount intercoolers are popular for several reasons:
- Enhanced Cooling: Larger surface area allows for better heat dissipation.
- Improved Performance: Lower intake temperatures can lead to increased horsepower.
- Customizable Options: Many brands offer various sizes and configurations to fit your needs.
Benefits of Top Mount Intercoolers
Top mount intercoolers also have their merits:
- Space-Saving: Ideal for those with limited engine bay space.
- Ease of Installation: Typically easier to install than front mount options.
- Cost-Effective: Generally less expensive than larger front mount systems.
Maintaining Your WRX After Conversion
After upgrading your WRX for E85, regular maintenance is essential to ensure longevity and performance. Here are some tips:
- Regular Tune-Ups: Schedule regular tuning sessions to adapt to changes in performance.
- Inspect Boost Levels: Regularly check boost levels to prevent overboosting.
- Monitor Temperatures: Keep an eye on engine and intercooler temperatures during driving.
- Fuel Quality: Use high-quality E85 to prevent engine issues.
Conclusion
Converting your WRX to E85 can significantly enhance performance, but it requires careful consideration of boost controllers and intercoolers to ensure longevity. By choosing reliable components and maintaining your vehicle properly, you can enjoy the benefits of your upgrade for years to come.