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When it comes to building a turbocharged engine for your TT, selecting the right turbocharger is crucial for performance and efficiency. Two popular options are the Precision 5857 and the BorgWarner S3 Turbo. Each has its own advantages and characteristics that can significantly impact your build.
Overview of the Precision 5857
The Precision 5857 turbocharger is known for its robust performance and reliability. It is designed to provide a balance between spool time and peak power, making it a favorite among enthusiasts.
- Compressor Size: 58mm inducer, 71mm exducer
- Turbine Size: 57mm
- Power Range: Ideal for 400-600 horsepower builds
Overview of the BorgWarner S3 Turbo
The BorgWarner S3 Turbo is another excellent choice for turbocharging your TT. It is known for its efficient design and quick spool characteristics, making it suitable for both street and track applications.
- Compressor Size: 57mm inducer, 76mm exducer
- Turbine Size: 53mm
- Power Range: Ideal for 300-500 horsepower builds
Key Differences Between the Two Turbos
While both turbos offer great performance, there are key differences that may influence your decision. Understanding these differences can help you choose the best option for your specific build.
- Spool Time: The Precision 5857 generally offers a quicker spool time compared to the BorgWarner S3, making it more responsive in lower RPMs.
- Peak Power: The Precision 5857 has a higher potential peak power, making it suitable for more powerful builds.
- Efficiency: The BorgWarner S3 Turbo is known for its efficiency, especially at higher RPMs, which can translate to better fuel economy and lower heat generation.
Factors to Consider When Choosing
Choosing the right turbocharger involves considering several factors that align with your build goals. Here are some important aspects to take into account:
- Power Goals: Determine your target horsepower and torque numbers to decide which turbo fits your needs.
- Driving Style: Consider whether you will be using your TT primarily for daily driving, track days, or a mix of both.
- Budget: Evaluate your budget not only for the turbo but also for supporting modifications like fuel systems and tuning.
Supporting Modifications
Regardless of which turbo you choose, supporting modifications are essential to maximize performance and reliability. Here are some common upgrades to consider:
- Fuel System: Upgrading your fuel pump and injectors ensures adequate fuel delivery.
- Exhaust System: A high-flow exhaust system can help reduce back pressure and improve turbo efficiency.
- Tuning: Proper tuning is critical to optimize performance and prevent engine damage.
Conclusion
Both the Precision 5857 and the BorgWarner S3 Turbo have their unique strengths and can significantly enhance your TT’s performance. By considering your power goals, driving style, and necessary modifications, you can make an informed decision that aligns with your build aspirations.