Table of Contents
The Subaru WRX is a popular choice among car enthusiasts, known for its impressive performance and tuning potential. One of the most effective ways to maximize the power of your WRX is by converting it to run on E85 fuel. This article will explore the best turbo and fuel system upgrades that can help you achieve optimal performance with your WRX E85 conversion.
Understanding E85 Fuel
E85 is a fuel blend that contains up to 85% ethanol and 15% gasoline. This high ethanol content allows for more aggressive tuning and can lead to significant power gains. However, to fully utilize E85, certain modifications to the turbo and fuel system are necessary.
Turbo Upgrades for E85 Conversion
Upgrading the turbocharger is one of the most impactful modifications you can make when converting your WRX to E85. A larger turbo can provide increased airflow, which is essential for maximizing power output.
- Garrett GTX3071R Turbo: This turbo is known for its quick spool and high efficiency, making it a great choice for street and track use.
- Blouch 20G Turbo: Offers excellent power gains and is a popular option among WRX enthusiasts.
- FP Black Turbo: Known for its ability to support high horsepower levels, ideal for serious performance builds.
Fuel System Upgrades
To fully support the increased power levels that come with E85, upgrading the fuel system is crucial. Ethanol requires more fuel volume than gasoline, so the stock fuel system may not suffice.
- High-Flow Fuel Pump: Upgrading to a high-flow fuel pump ensures that your engine receives enough fuel, especially under high load conditions.
- Upgraded Fuel Injectors: Larger fuel injectors are necessary to deliver the increased fuel volume required for E85.
- Fuel Pressure Regulator: A fuel pressure regulator helps maintain consistent fuel pressure, which is essential for optimal performance.
Tuning Considerations
After upgrading your turbo and fuel system, proper tuning is essential to maximize the benefits of E85. A professional tune will ensure that your engine runs efficiently and safely with the new modifications.
- ECU Reflash: A reflash of the engine control unit (ECU) will optimize fuel maps and ignition timing for E85.
- Dyno Tuning: A dyno session can help fine-tune the setup for maximum power and reliability.
Conclusion
Converting your WRX to run on E85 can unleash significant power gains, but it requires careful consideration of turbo and fuel system upgrades. By investing in the right components and ensuring proper tuning, you can maximize the performance of your WRX and enjoy the benefits of E85 fuel.