Handling Improvements for Wrx E85 Conversion: Upgrading Suspension and Brakes for Track Days

The Subaru WRX is known for its performance, but when converting to E85 fuel, handling becomes even more critical. Upgrading your suspension and brakes can significantly enhance your driving experience on track days. This article will explore the essential improvements needed for optimal handling in your WRX E85 conversion.

Understanding E85 Conversion

Before diving into suspension and brake upgrades, it’s essential to understand what E85 conversion entails. E85 is a fuel blend consisting of 85% ethanol and 15% gasoline, providing higher octane levels and better performance. However, this conversion can affect various aspects of your vehicle’s handling and performance.

  • Increased power output
  • Potential for engine tuning adjustments
  • Impact on fuel system components

Upgrading Suspension

Upgrading the suspension is crucial for handling improvements, especially when pushing your WRX to its limits on the track. Here are some key components to consider:

Coilovers

Investing in a quality set of coilovers allows for adjustable ride height and damping settings, providing a tailored driving experience. Key benefits include:

  • Improved cornering stability
  • Reduced body roll
  • Customizable setup for different track conditions

Sway Bars

Upgrading sway bars can help reduce body roll during cornering. A stiffer sway bar setup enhances the car’s responsiveness and stability. Consider the following:

  • Front sway bar upgrade for better turn-in response
  • Rear sway bar adjustment for balance

Strut Braces

Installing strut braces increases chassis rigidity, leading to improved handling. This upgrade minimizes flex during aggressive driving, enhancing steering feedback and precision.

Enhancing Brake Performance

With increased power from the E85 conversion, upgrading your brakes is essential for safety and performance on the track. Focus on these key areas:

Brake Pads

High-performance brake pads are designed to withstand the heat generated during track use. They provide better stopping power and reduced fade. Look for:

  • Track-focused compounds for optimal performance
  • Low dust and noise characteristics

Brake Rotors

Upgrading to larger or slotted brake rotors can improve heat dissipation and reduce brake fade. Consider the following options:

  • Drilled or slotted rotors for better airflow
  • Two-piece rotors for weight savings

Brake Lines

Stainless steel brake lines provide a firmer brake pedal feel and improved responsiveness. They resist expansion under pressure, ensuring consistent braking performance.

Alignments and Tuning

After making suspension and brake upgrades, a proper alignment is crucial. A professional alignment ensures that your wheels are correctly positioned, improving handling and tire wear. Key alignment settings to consider include:

  • Camber adjustments for better cornering grip
  • Toe settings for stability at high speeds

Conclusion

Upgrading the suspension and brakes of your WRX during an E85 conversion can significantly enhance handling and performance on track days. By investing in quality components and ensuring proper alignment, you can enjoy a more responsive and exhilarating driving experience. Always consult with professionals to tailor your upgrades to your specific needs and driving style.