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The Nissan GT-R is a legendary vehicle known for its incredible performance and engineering excellence. However, when pushing the limits of power, especially above 700 horsepower, the transmission components become critical. One of the most effective upgrades for enhancing the durability and performance of the GT-R’s transmission is the installation of cross-drilled and Teflon-coated synchros. This article delves into the benefits of these modifications and how they can significantly improve your track day experience.
Understanding GT-R Transmission Limitations
The stock transmission in the GT-R is designed to handle a considerable amount of power, but when modified for higher outputs, certain components may struggle. The synchros, which play a vital role in smooth gear transitions, can wear out quickly under extreme conditions. This is where cross-drilled and Teflon-coated synchros come into play.
What Are Cross-Drilled Synchros?
Cross-drilled synchros are designed with holes drilled through their surfaces. This design serves multiple purposes:
- Weight Reduction: The removal of material helps decrease the overall weight of the synchro.
- Heat Dissipation: The holes allow for better airflow, which helps in dissipating heat generated during high-performance driving.
- Improved Engagement: The design enhances the engagement of the synchros, leading to smoother gear shifts.
The Advantages of Teflon Coating
Teflon coating is a well-known solution in various industries due to its low friction properties. When applied to synchros, it offers several benefits:
- Reduced Friction: The Teflon coating minimizes friction between the synchro and the gear, leading to smoother shifts.
- Enhanced Durability: Teflon is resistant to wear, which prolongs the life of the synchros under high-stress conditions.
- Corrosion Resistance: The coating protects against corrosion, ensuring the synchros remain effective over time.
Benefits of Upgrading to Cross-Drilled and Teflon-Coated Synchros
Upgrading to cross-drilled and Teflon-coated synchros can provide significant advantages for GT-R owners, especially those who frequently participate in track days:
- Improved Shift Quality: The combination of reduced weight, heat dissipation, and low friction leads to a noticeable improvement in shift quality.
- Increased Reliability: These upgrades enhance the reliability of the transmission, allowing drivers to focus on performance without worrying about component failure.
- Better Performance: With smoother shifts and enhanced engagement, drivers can achieve better lap times and overall performance on the track.
Installation Process
Installing cross-drilled and Teflon-coated synchros requires a certain level of mechanical expertise. Here’s a general overview of the installation process:
- Disassembly: The transmission must be removed from the vehicle and disassembled to access the synchros.
- Replacement: The old synchros are removed and replaced with the new cross-drilled and Teflon-coated options.
- Reassembly: The transmission is reassembled, ensuring all components are correctly installed and torqued to specifications.
- Reinstallation: Finally, the transmission is reinstalled into the vehicle, and all connections are checked before testing.
Conclusion
For GT-R enthusiasts looking to maximize their vehicle’s potential on the track, upgrading to cross-drilled and Teflon-coated synchros is an effective solution. These enhancements not only improve shift quality and reliability but also contribute to better overall performance. Whether you’re a seasoned racer or a weekend warrior, these upgrades can make a significant difference in your driving experience.