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Choosing the right turbocharger for your Subaru WRX can significantly impact performance, responsiveness, and driving experience. The 19G, 20G, and 22G turbos are popular options among enthusiasts. In this article, we will compare these three turbo sizes to help you make an informed decision.
Understanding Turbo Sizes
Turbochargers are classified by their size, which affects their airflow capacity and boost potential. The size of the turbo you choose will depend on your specific performance goals, driving style, and engine modifications.
19G Turbo: Overview
The 19G turbo is a popular choice for those looking to achieve a balance between quick spool and substantial power gains. It is often favored for street applications and moderate performance builds.
- Spool Time: Quick, ideal for responsive driving.
- Power Output: Typically supports around 300-350 whp.
- Best For: Daily drivers and mild performance builds.
20G Turbo: Overview
The 20G turbo offers a slightly larger compressor than the 19G, resulting in increased power potential. It strikes a balance between responsiveness and high-end power, making it suitable for a wider range of builds.
- Spool Time: Moderate, slightly slower than the 19G.
- Power Output: Typically supports around 350-400 whp.
- Best For: Performance-oriented builds and track use.
22G Turbo: Overview
The 22G turbo is designed for those seeking maximum power and efficiency. It is larger than both the 19G and 20G, providing the potential for significant horsepower gains, especially in high-performance applications.
- Spool Time: Slower, but offers higher peak power.
- Power Output: Typically supports 400+ whp.
- Best For: High-performance builds and racing applications.
Comparative Analysis
To better understand the differences between the 19G, 20G, and 22G turbos, let’s compare their key attributes:
- Power Band: The 19G excels in low to mid-range power, while the 20G and 22G extend further into the high RPM range.
- Response: The 19G offers the quickest response, making it ideal for street driving. The 20G provides a good compromise, and the 22G may feel laggier due to its size.
- Installation: All three turbos can fit the WRX with minimal modifications, but the 22G may require additional supporting mods for optimal performance.
Considerations for Choosing a Turbo
When selecting a turbo for your WRX, consider the following factors:
- Performance Goals: Define what you want to achieve—daily driving, track performance, or all-out racing.
- Supporting Modifications: Ensure your engine and drivetrain can handle the increased power and boost levels.
- Budget: Factor in not just the cost of the turbo, but also installation and additional parts needed for a complete setup.
Conclusion
Choosing between the 19G, 20G, and 22G turbos for your WRX ultimately depends on your individual performance needs and driving style. The 19G is perfect for those who prioritize responsiveness, while the 20G offers a balance of power and drivability. The 22G is suited for those aiming for maximum output in high-performance scenarios. Assess your goals and make an informed choice to enhance your WRX driving experience.