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Turbocharging has become a popular method for enhancing the performance of vehicles, particularly for those seeking to significantly increase horsepower. The Garrett GT35 and GT37 turbos are among the most sought-after options for enthusiasts aiming to push their horsepower to over 500 HP. In this guide, we will explore the specifications, benefits, and installation tips for these powerful turbos.
Understanding Turbo Sizing
Turbo sizing is crucial for achieving optimal performance. The right turbo size can drastically affect your vehicle’s power output, throttle response, and overall drivability. It’s essential to understand the differences between the GT35 and GT37 turbos to choose the best option for your build.
Specifications of Garrett GT35 and GT37 Turbos
- GT35 Turbo: Known for its versatility, the GT35 turbo features a 0.82 A/R turbine housing and can support up to 600 HP.
- GT37 Turbo: The GT37 turbo is designed for higher performance, boasting a larger compressor wheel and the ability to support up to 700 HP.
GT35 Turbo Specifications
- Compressor Wheel Diameter: 60mm
- Turbine Wheel Diameter: 76mm
- Compressor A/R: 0.60
- Max Boost Pressure: 30 PSI
GT37 Turbo Specifications
- Compressor Wheel Diameter: 64mm
- Turbine Wheel Diameter: 80mm
- Compressor A/R: 0.70
- Max Boost Pressure: 35 PSI
Choosing the Right Turbo for Your Build
When selecting between the GT35 and GT37, consider your engine setup, desired horsepower, and intended use. The GT35 is ideal for street applications, while the GT37 is better suited for track use or high-performance builds.
Benefits of Upgrading to Garrett GT35 or GT37 Turbos
- Increased Horsepower: Both turbos can significantly boost your engine’s power output.
- Improved Throttle Response: Upgrading to a larger turbo can enhance engine responsiveness.
- Better Efficiency: Modern turbo designs offer improved efficiency over stock turbos.
Installation Tips
Installing a turbocharger can be complex. Here are some tips to ensure a successful installation:
- Use Quality Parts: Invest in quality gaskets, hoses, and fittings to prevent leaks.
- Follow Manufacturer Instructions: Always refer to the installation manual for specific guidance.
- Consider Professional Help: If you’re unsure, consult with a professional mechanic experienced in turbo installations.
Tuning for Maximum Performance
After installation, tuning your vehicle is essential to maximize performance. A proper tune ensures that your engine runs efficiently with the new turbo. Consider the following:
- Use a Dyno: A dyno session can help you achieve the best tuning results.
- Adjust Fuel Maps: Ensure your fuel maps are adjusted to accommodate the increased airflow.
- Monitor Engine Parameters: Keep an eye on boost levels, air-fuel ratios, and engine temperatures.
Potential Challenges and Solutions
While upgrading to a GT35 or GT37 turbo can yield impressive results, it can also present challenges. Here are some common issues and how to address them:
- Lag: Larger turbos can introduce lag. Consider a twin-scroll setup to mitigate this.
- Heat Management: Increased power can lead to higher temperatures. Use an upgraded intercooler to manage heat effectively.
- Reliability: Ensure all components are rated for the increased power to maintain engine reliability.
Conclusion
Upgrading to a Garrett GT35 or GT37 turbo can dramatically enhance your vehicle’s performance, pushing horsepower beyond 500 HP. By understanding the specifications, benefits, and installation tips, you can make an informed decision that aligns with your performance goals. Whether you’re a street enthusiast or a track racer, these turbos offer the potential for exhilarating power and responsiveness.