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The Nissan 350Z is a popular platform among car enthusiasts, particularly those interested in performance upgrades. One of the most significant upgrades for the 350Z is the addition of a turbocharger. Two of the most sought-after turbo kits for this vehicle are the Garrett GT2871R and the Precision 5857. In this article, we will compare these two turbo kits to help you determine which one is better suited for your build.
Overview of Turbo Kits
Turbo kits are essential for increasing the horsepower and torque of your vehicle. They work by forcing more air into the engine, allowing for more fuel to be burned and thus generating more power. The Garrett GT2871R and Precision 5857 are both designed to maximize performance, but they have different characteristics that may make one more suitable for your specific needs.
Garrett GT2871R Turbo Kit
The Garrett GT2871R is known for its quick spool time and excellent mid-range power. It is a popular choice for those looking to enhance the performance of their 350Z without sacrificing drivability.
Specifications
- Compressor Wheel Diameter: 71mm
- Turbine Wheel Diameter: 53mm
- Maximum Boost: 20 PSI
- Power Range: 300-400 HP
Pros
- Quick spool time for responsive power delivery
- Excellent mid-range torque
- Good reliability and build quality
Cons
- Limited top-end power compared to larger turbos
- May require additional tuning for optimal performance
Precision 5857 Turbo Kit
The Precision 5857 turbo is designed for those who want to push the limits of their 350Z’s performance. It offers a larger compressor and turbine size, which can yield higher horsepower figures while maintaining a reasonable spool time.
Specifications
- Compressor Wheel Diameter: 57mm
- Turbine Wheel Diameter: 68mm
- Maximum Boost: 30 PSI
- Power Range: 400-600 HP
Pros
- Higher power potential for performance builds
- Good top-end power
- Versatile for various tuning setups
Cons
- Longer spool time compared to smaller turbos
- May require more supporting modifications
Performance Comparison
When comparing the performance of the Garrett GT2871R and the Precision 5857, it is essential to consider how each turbo will perform in real-world conditions.
Power Delivery
The Garrett GT2871R excels in providing a linear power delivery, making it an excellent choice for street driving and autocross. The Precision 5857, on the other hand, shines on the racetrack, offering higher peak power but requiring more RPMs to reach its full potential.
Spool Time
Spool time is a critical factor for many enthusiasts. The Garrett GT2871R has a quicker spool time, which translates to improved throttle response and driving enjoyment. The Precision 5857, while still relatively quick, takes longer to spool due to its larger size.
Installation Considerations
Both turbo kits require a certain level of mechanical skill for installation, and there are some differences to consider.
Garrett GT2871R Installation
The GT2871R is generally considered easier to install, as it is designed to fit within the stock engine bay with minimal modifications. Most users report a straightforward installation process.
Precision 5857 Installation
The Precision 5857 may require additional modifications, such as upgrading the intercooler and exhaust system, to achieve optimal performance. This can add complexity to the installation process.
Cost Analysis
Cost is always a crucial factor when considering performance upgrades. Here’s a breakdown of the typical costs associated with each turbo kit.
Garrett GT2871R Pricing
The Garrett GT2871R turbo kit is generally priced lower than the Precision 5857, making it a more budget-friendly option for those looking to enhance their 350Z without breaking the bank.
Precision 5857 Pricing
The Precision 5857 turbo kit tends to be more expensive due to its larger size and higher performance potential. However, many enthusiasts consider this investment worthwhile for the added power and capability.
Final Thoughts
Choosing between the Garrett GT2871R and the Precision 5857 turbo kits ultimately depends on your specific goals and preferences. If you prioritize quick spool time and mid-range power for street use, the GT2871R may be the better option. Conversely, if you’re aiming for maximum horsepower and are willing to invest in supporting modifications, the Precision 5857 could be the right choice for your build.
Regardless of your choice, both turbo kits have proven their worth among 350Z enthusiasts and can significantly enhance your vehicle’s performance when properly installed and tuned.