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The Subaru WRX has long been a favorite among car enthusiasts, particularly for those interested in performance modifications. One of the most significant areas for improvement in the VA WRX is the drivetrain. Upgrading components like the clutch, flywheel, and limited-slip differential (LSD) can significantly enhance power delivery and driving dynamics. This article will provide recommendations for each of these components to help you achieve optimal performance.
Understanding the Importance of Drivetrain Upgrades
The drivetrain is crucial in transferring power from the engine to the wheels. A well-optimized drivetrain can improve acceleration, handling, and overall driving experience. Upgrading key components can help manage increased power levels from engine modifications, ensuring that you get the most out of your performance upgrades.
Clutch Upgrades for the VA WRX
The clutch is a vital component in managing power transfer in a manual transmission vehicle. Stock clutches can struggle under increased power, leading to slippage and reduced performance. Here are some recommended clutch upgrades for the VA WRX:
- Exedy Stage 1 Clutch: A great option for those looking for a balance between performance and daily drivability. It offers increased clamping force without sacrificing pedal feel.
- ACT Heavy Duty Clutch: Ideal for those pushing higher horsepower levels, this clutch provides excellent durability and performance under aggressive driving conditions.
- South Bend Clutch Stage 2: This clutch is designed for high power applications, featuring a stronger pressure plate and a more robust disc for better power handling.
Factors to Consider When Choosing a Clutch
When selecting a clutch, consider the following factors:
- Power Level: Choose a clutch that can handle your current and future power goals.
- Driving Style: Consider whether you prioritize daily drivability or track performance.
- Pedal Feel: Some clutches can feel heavier than others; ensure you choose one that matches your comfort level.
Flywheel Options for Enhanced Performance
The flywheel plays a crucial role in how quickly the engine responds to throttle inputs. Lightweight flywheels can reduce rotational mass, improving acceleration and engine responsiveness. Here are some top flywheel options for the VA WRX:
- Exedy Lightweight Flywheel: This flywheel reduces weight significantly, improving throttle response and acceleration without compromising drivability.
- ACT ProLite Flywheel: Designed for high-performance applications, this flywheel offers excellent durability and weight savings, making it ideal for track use.
- Spec Lightweight Flywheel: A good option for those looking for a balance between performance and daily driving, it provides noticeable improvements in engine response.
Benefits of Upgrading Your Flywheel
Upgrading to a lightweight flywheel can provide several benefits, including:
- Improved Acceleration: A lighter flywheel allows the engine to rev quicker, resulting in faster acceleration.
- Better Throttle Response: Reduced rotational mass leads to a more responsive throttle, enhancing driving enjoyment.
- Enhanced Engine Sound: Some enthusiasts appreciate the more aggressive engine sound that can accompany lightweight flywheels.
Limited-Slip Differential (LSD) Upgrades
A limited-slip differential is essential for maximizing traction and handling, especially in high-power applications. Upgrading your LSD can significantly improve cornering performance and stability. Here are some recommended LSD options for the VA WRX:
- Wavetrac LSD: Known for its ability to provide consistent power delivery, this LSD is a favorite among performance enthusiasts for its reliability and performance.
- OS Giken LSD: This high-performance LSD offers adjustable settings, allowing drivers to fine-tune their traction and handling characteristics.
- Kaaz LSD: A popular choice for track enthusiasts, Kaaz LSDs provide excellent grip and control, making them ideal for competitive driving.
Choosing the Right LSD for Your Needs
When selecting an LSD, consider the following:
- Driving Conditions: Think about whether you will be driving mostly on the street or the track.
- Power Level: Ensure the LSD can handle the power output of your modified engine.
- Adjustability: Some LSDs offer adjustable settings for different driving styles and conditions, which can be beneficial for versatility.
Conclusion
Upgrading the drivetrain components of your VA WRX can yield significant performance improvements. By carefully selecting the right clutch, flywheel, and LSD, you can enhance your vehicle’s responsiveness, traction, and overall driving experience. Remember to consider your specific needs and driving style when making these upgrades to ensure the best results.