Durability Tips for Wrx E85 Conversion: Upgrading Ignition Systems and Cooling Components

The Subaru WRX is a beloved performance vehicle, known for its agility and power. When converting your WRX to run on E85 fuel, ensuring the durability of your vehicle’s components is essential. This article will provide vital tips for upgrading ignition systems and cooling components to enhance the longevity and performance of your WRX.

Understanding E85 Fuel

E85 is a blend of 85% ethanol and 15% gasoline. This fuel type offers higher octane ratings, which can lead to increased performance. However, it also has different properties than traditional gasoline that can affect your vehicle’s components.

Upgrading the Ignition System

The ignition system is crucial for optimal engine performance, especially when using E85. Here are some tips for upgrading your ignition system:

  • High-Performance Spark Plugs: Consider using spark plugs designed for high-performance applications. These plugs can handle the increased demands of E85.
  • Ignition Coils: Upgrade to high-output ignition coils to ensure a stronger spark, which is essential for igniting the ethanol-rich fuel.
  • Wiring Harness: Inspect and upgrade the ignition wiring harness to reduce resistance and ensure reliable performance.
  • ECU Tuning: Re-tune your engine’s ECU to optimize ignition timing for E85, maximizing power and efficiency.

Choosing the Right Spark Plugs

When selecting spark plugs for your WRX E85 conversion, consider the following:

  • Look for plugs with a higher heat range to accommodate the increased combustion temperatures associated with E85.
  • Consider using iridium or platinum plugs for better durability and performance.
  • Check the gap specifications recommended for E85 to ensure optimal ignition.

Enhancing Cooling Components

Proper cooling is vital when converting to E85, as the fuel can produce more heat during combustion. Here are some tips for enhancing your WRX’s cooling components:

  • Upgraded Radiator: Install a high-performance radiator to improve heat dissipation and maintain optimal engine temperatures.
  • Cooling Fans: Consider upgrading to more efficient electric cooling fans that can provide better airflow at lower speeds.
  • Thermostat: Use a lower-temperature thermostat to allow coolant to flow sooner, helping to regulate engine temperatures effectively.
  • Oil Cooler: Adding an oil cooler can help maintain lower oil temperatures, which is beneficial for engine longevity.

Choosing an Upgraded Radiator

When selecting a radiator for your WRX E85 conversion, keep these points in mind:

  • Look for a radiator with a higher core thickness for increased cooling capacity.
  • Consider models with aluminum construction for better heat transfer and durability.
  • Ensure compatibility with your WRX model year and any aftermarket modifications.

Regular Maintenance and Monitoring

Maintaining your upgraded components is critical for long-term durability. Regularly check the following:

  • Inspect spark plugs for wear and replace them as needed.
  • Monitor ignition coil performance and replace any faulty units.
  • Check coolant levels and inspect for leaks in the cooling system.
  • Regularly change engine oil and monitor oil temperatures.

Conclusion

Upgrading your WRX for an E85 conversion requires careful attention to both the ignition system and cooling components. By following these durability tips, you can ensure that your vehicle performs optimally and lasts longer, allowing you to enjoy the full benefits of E85 fuel.