Upgrading the Gt-r Transmission for Street and Track: Key Components for 700 to 1000+ Hp Builds

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The Nissan GT-R is renowned for its performance, but as power levels rise into the 700 to 1000+ hp range, the stock transmission may struggle to keep up. Upgrading the transmission is crucial for both street and track applications to ensure reliability and performance. In this article, we will explore the key components necessary for upgrading the GT-R transmission to handle these extreme power levels.

Understanding the Stock GT-R Transmission

The stock GT-R transmission is a robust unit, but it has its limits. Designed for performance, it can handle a decent amount of power, but as modifications increase, the need for upgrades becomes apparent. Understanding the components and their limitations is essential for planning your upgrade.

Key Components for Upgrading the GT-R Transmission

  • Clutch Kit: Upgrading to a high-performance clutch kit is vital. Look for options that can handle increased torque and provide better engagement.
  • Transmission Cooler: A dedicated transmission cooler helps maintain optimal operating temperatures, preventing overheating during intense driving.
  • Shift Kit: A shift kit can improve the responsiveness and speed of gear changes, essential for both street and track performance.
  • Upgraded Gears: Consider replacing stock gears with stronger aftermarket options designed to handle higher power levels.
  • Transmission Mounts: Upgraded mounts reduce flex and improve power transfer, enhancing overall performance.
  • Torque Converter: A high-performance torque converter can improve acceleration and responsiveness, making it a worthwhile upgrade.

Choosing the Right Clutch Kit

The clutch kit is one of the most critical components in your transmission upgrade. For builds producing 700 to 1000+ hp, a standard clutch will likely slip and fail. Here are some factors to consider when selecting a clutch kit:

  • Material: Look for clutches made from high-friction materials for better grip and durability.
  • Pressure Plate: A stronger pressure plate can provide better clamping force, reducing the chances of slippage.
  • Disc Size: Larger discs can handle more power, but ensure they fit your transmission setup.

Importance of a Transmission Cooler

Heat is the enemy of performance transmissions. As power levels increase, so does the heat generated within the transmission. A dedicated transmission cooler can help manage this heat effectively. Here’s why you need one:

  • Prevention of Overheating: Keeping temperatures in check prevents fluid breakdown and component failure.
  • Extended Lifespan: Cooler operating temperatures can significantly extend the lifespan of your transmission.
  • Consistent Performance: Maintaining optimal temperatures ensures consistent performance during both street and track use.

Enhancing Gear Shifts with a Shift Kit

A shift kit can dramatically improve the performance of your GT-R’s transmission. By modifying the hydraulic system, a shift kit allows for quicker and more precise gear changes. Consider the following benefits:

  • Faster Shifts: Reduced shift times lead to improved acceleration and performance.
  • Better Control: Enhanced control during shifts provides a more engaging driving experience.
  • Reduced Slip: Minimizing slip during shifts helps maintain power delivery to the wheels.

Upgrading Gears for High Power Builds

As power levels increase, the stock gears may not be sufficient to handle the torque output. Upgrading to stronger, aftermarket gears is essential. Here are some options to consider:

  • Gear Material: Look for gears made from high-strength steel or other durable materials.
  • Gear Ratios: Adjusting gear ratios can improve acceleration and top speed, depending on your performance goals.
  • Complete Gear Set: Consider a complete gear set upgrade for optimal performance across the board.

Choosing the Right Transmission Mounts

Transmission mounts play a crucial role in power transfer and stability. Upgrading to performance mounts can reduce flex and improve overall drivetrain performance. Consider these factors:

  • Material: Look for mounts made from durable materials that can withstand high levels of stress.
  • Design: Opt for mounts designed specifically for high-performance applications.
  • Vibration Dampening: Consider mounts that provide vibration dampening for a more comfortable ride.

Upgrading the Torque Converter

The torque converter is an often-overlooked component that can significantly impact performance. Upgrading to a high-performance torque converter can improve acceleration and responsiveness. Here’s what to look for:

  • Stall Speed: Choose a torque converter with a stall speed that matches your power band for optimal performance.
  • Lock-Up Feature: A lock-up feature can improve efficiency and reduce heat during cruising.
  • Durability: Ensure the converter can handle the increased power levels without failure.

Conclusion

Upgrading the GT-R transmission for street and track use is essential for handling 700 to 1000+ hp builds. By focusing on key components such as the clutch kit, transmission cooler, shift kit, upgraded gears, transmission mounts, and torque converter, you can ensure your GT-R performs at its best. Investing in these upgrades will not only enhance performance but also provide reliability and longevity for your high-powered build.