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The Subaru WRX is renowned for its performance and tuning potential. With the rise of E85 fuel, many enthusiasts are looking to upgrade their turbochargers to achieve over 500 horsepower safely. In this article, we will explore the best turbocharger upgrades for WRX E85 conversions.
Understanding E85 Fuel
E85 is a fuel blend consisting of 85% ethanol and 15% gasoline. It offers several advantages for performance vehicles, including:
- Higher octane rating, allowing for more aggressive tuning.
- Cooler combustion temperatures, reducing the risk of knock.
- Increased power potential due to the higher energy content.
Factors to Consider for Turbocharger Upgrades
When selecting a turbocharger for your WRX E85 conversion, consider the following factors:
- Power goals: Ensure the turbo can support your desired horsepower.
- Response time: Choose a turbo that provides quick spool for better drivability.
- Compatibility: Ensure the turbo fits your WRX model and setup.
- Durability: Look for turbos designed to withstand higher boost levels.
Top Turbocharger Upgrades for WRX E85 Conversion
1. Garrett GT2871R
The Garrett GT2871R is a popular choice among WRX enthusiasts. It offers:
- Fast spool time, ideal for street and track use.
- Capable of reaching up to 500 horsepower with proper tuning.
- Durable construction for longevity under high boost conditions.
2. Precision 6266
The Precision 6266 turbocharger is known for its efficiency and power output. Key features include:
- High flow potential, making it suitable for E85 applications.
- Excellent boost response, enhancing overall performance.
- Proven track record in the Subaru community.
3. Blouch 20G-XTR
The Blouch 20G-XTR is another fantastic option for those aiming for 500+ horsepower. Benefits include:
- Designed specifically for E85 and high-performance applications.
- Strong mid-range power delivery for improved acceleration.
- Quality construction for reliable performance.
4. BorgWarner EFR 7670
The BorgWarner EFR series is known for its advanced technology. The EFR 7670 offers:
- Integrated wastegate for better boost control.
- Lightweight design for quicker spool times.
- High efficiency, making it suitable for E85 setups.
5. Forced Performance FP Black
The FP Black turbocharger is a top-tier choice for serious power seekers. Its features include:
- Designed for high horsepower builds exceeding 500 HP.
- Excellent reliability and performance under high boost.
- Proven success in both street and race applications.
Supporting Modifications
To safely achieve over 500 horsepower with your new turbocharger, consider the following supporting modifications:
- Upgraded fuel system: Ensure adequate fuel delivery with larger injectors and a high-flow fuel pump.
- ECU tuning: Proper tuning is crucial for maximizing performance and reliability.
- Upgraded intercooler: A larger intercooler helps maintain lower intake temperatures.
- Exhaust system: A high-flow exhaust will reduce back pressure and improve turbo efficiency.
Conclusion
Upgrading your WRX turbocharger for E85 conversion can unlock significant power potential. By choosing the right turbo and supporting modifications, reaching 500+ horsepower safely is achievable. Always consult with a professional tuner to ensure your setup is optimized for performance and reliability.