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The Subaru WRX has long been a favorite among motorsport enthusiasts, especially when it comes to building a track-worthy vehicle. The VA generation of the WRX, known for its turbocharged power and all-wheel-drive capabilities, offers a solid foundation for any racing enthusiast. However, to truly excel on the circuit, it is essential to balance power, handling, and durability. In this article, we will explore key modifications and considerations for building a track-ready VA WRX.
Understanding the VA WRX Platform
The VA WRX, produced from 2015 onwards, features a 2.0L turbocharged flat-four engine, producing impressive power and torque. Its symmetrical all-wheel-drive system provides excellent traction, making it a great candidate for track use. However, to maximize its potential, modifications are necessary.
Enhancing Power Output
Power is a critical aspect of any track car. Enhancing the VA WRX’s power output can significantly improve lap times and overall performance. Here are some popular modifications:
- ECU Tuning: Remapping the engine’s ECU can unleash additional horsepower and torque.
- Upgraded Turbocharger: Installing a larger turbo can increase airflow and boost, leading to more power.
- Performance Exhaust System: A less restrictive exhaust can improve engine efficiency and sound.
- Cold Air Intake: Enhancing airflow to the engine can improve throttle response and power.
Boost Control
Managing boost levels is crucial for reliability and performance. Consider installing a boost controller to optimize power delivery and prevent overboosting, which can lead to engine damage.
Improving Handling
Handling is just as important as power when it comes to track performance. A well-balanced suspension setup can greatly enhance cornering ability and driver confidence. Key modifications include:
- Coilover Suspension: Adjustable coilovers allow for customization of ride height and damping settings.
- Upgraded Sway Bars: Stiffer sway bars reduce body roll and improve stability during cornering.
- Performance Tires: Selecting the right tires can significantly impact grip and handling characteristics.
- Alignment Settings: Proper alignment can optimize tire wear and improve handling response.
Braking Performance
Enhanced braking performance is essential for track use. Upgrading to larger rotors, high-performance brake pads, and stainless steel brake lines can improve stopping power and reduce fade during extended sessions.
Durability Considerations
While increasing power and improving handling, it’s vital to ensure the VA WRX remains durable for track use. Consider the following modifications to enhance reliability:
- Upgraded Intercooler: A larger intercooler can help maintain lower intake temperatures, improving performance and engine longevity.
- Oil Cooler: An oil cooler can prevent overheating during high-stress driving conditions.
- Stronger Engine Internals: Upgrading components such as pistons and rods can handle increased power levels.
- Regular Maintenance: Keeping up with oil changes and inspections is crucial for long-term reliability.
Weight Reduction
Reducing weight can improve both power-to-weight ratio and handling. Consider removing unnecessary interior components, replacing heavy parts with lightweight alternatives, and utilizing carbon fiber components where possible.
Final Thoughts
Building a track-worthy VA WRX requires a careful balance of power, handling, and durability. By focusing on these key areas and making informed modifications, you can create a vehicle that not only performs well on the circuit but is also reliable for track days. Whether you’re a seasoned racer or a novice enthusiast, the journey of building your VA WRX can be both rewarding and exhilarating.