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The Subaru WRX is known for its performance and tuning potential, and when it comes to achieving over 400 horsepower, the E85 conversion is a game changer. This article explores the top power modifications for WRX E85 conversion, focusing on Stage 3 upgrades.
Understanding E85 Fuel
E85 fuel is a blend of 85% ethanol and 15% gasoline, offering higher octane levels compared to conventional fuels. This allows for more aggressive tuning and increased performance due to the fuel’s ability to withstand higher boost levels without knocking.
Key Power Mods for WRX E85 Conversion
- Upgraded Fuel System
- High-Performance Turbocharger
- ECU Tuning
- Upgraded Intercooler
- Enhanced Exhaust System
1. Upgraded Fuel System
To effectively utilize E85, an upgraded fuel system is essential. This includes high-flow fuel injectors and a larger fuel pump to ensure adequate fuel delivery. Consider the following:
- Install larger fuel injectors (1000cc or more).
- Upgrade the fuel pump to support higher flow rates.
- Consider a fuel pressure regulator to maintain optimal pressure.
2. High-Performance Turbocharger
A high-performance turbocharger is crucial for achieving the desired horsepower. Look for turbos that provide a balance between spool time and peak power. Popular options include:
- Garrett GTX3071R
- Blouch 20G-XT
- FP Blue Turbo
3. ECU Tuning
Proper ECU tuning is vital for maximizing the performance of your WRX with E85. A custom tune can optimize fuel maps and ignition timing, ensuring the engine runs efficiently. Consider these options:
- Accessport by COBB Tuning
- ECUtek tuning solutions
- Open-source tuning with RomRaider
4. Upgraded Intercooler
An upgraded intercooler helps reduce intake temperatures, improving performance and reliability. Look for options that provide better airflow and cooling efficiency:
- Process West Verticooler
- Grimmspeed Top Mount Intercooler
- AMS Performance Front Mount Intercooler
5. Enhanced Exhaust System
A free-flowing exhaust system enhances turbo efficiency and reduces back pressure. Consider upgrading to a high-performance exhaust that complements your turbo setup:
- Invidia Q300 Cat-Back Exhaust
- HKS Hi-Power Exhaust
- TurboXS Turbo Back Exhaust
Conclusion
Achieving over 400 horsepower with a WRX E85 conversion is possible with the right modifications. By focusing on an upgraded fuel system, high-performance turbocharger, ECU tuning, upgraded intercooler, and enhanced exhaust system, you can unlock the full potential of your WRX. Always ensure to work with reputable tuners and quality parts to achieve the best results.