Upgrading the R33 Gt-r’s Transmission: Clutch and Gearbox Mods for 700 Hp Stability

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The Nissan R33 GT-R is a legendary vehicle known for its performance and engineering excellence. However, to achieve impressive power outputs, such as 700 horsepower, modifications to the transmission system are essential. This article will explore the necessary upgrades to the clutch and gearbox that ensure stability and reliability at high power levels.

Understanding the R33 GT-R Transmission

The R33 GT-R was equipped with a robust transmission system, but it can struggle under extreme power. Understanding the components is crucial for effective upgrades.

  • 5-speed Getrag manual transmission
  • ATTESA all-wheel-drive system
  • Active LSD (Limited Slip Differential)

Why Upgrade the Transmission?

Upgrading the transmission is vital for several reasons:

  • Increased power handling capacity
  • Improved shift performance
  • Enhanced durability and longevity

Clutch Upgrades for 700 HP

Choosing the right clutch is critical for handling increased horsepower. Here are key considerations:

  • Clutch Material: Look for high-friction materials such as ceramic or carbon.
  • Pressure Plate: A stronger pressure plate can provide better clamping force.
  • Disc Size: Larger diameter discs can improve torque capacity.

Several clutch kits are popular among R33 GT-R enthusiasts:

  • Exedy Stage 2 Clutch Kit
  • OS Giken Twin Plate Clutch
  • ACT Heavy Duty Clutch Kit

Gearbox Modifications

In addition to the clutch, the gearbox also requires modifications to handle increased power. Here are essential upgrades:

  • Short Shifter: A short shifter can reduce shift times and improve driver engagement.
  • Gear Ratio Changes: Adjusting the gear ratios can optimize acceleration and top speed.
  • Strengthened Components: Upgrading gears and synchros can enhance durability.

Here are some popular gearbox modifications:

  • Nismo Short Shifter
  • OS Giken Gear Set
  • R33 GT-R Synchro Kit

Installation Tips

Proper installation is key to the performance of your upgraded transmission. Consider these tips:

  • Always use a torque wrench to ensure proper tightness.
  • Follow manufacturer guidelines for installation procedures.
  • Consider professional installation for complex modifications.

Testing and Tuning

After upgrades, testing and tuning are essential to ensure everything functions correctly:

  • Perform a break-in period for the clutch.
  • Check for any leaks or unusual noises.
  • Use a dynamometer to measure power outputs and adjust tuning as needed.

Conclusion

Upgrading the transmission of your R33 GT-R is a crucial step towards achieving reliable 700 horsepower. With the right clutch and gearbox modifications, you can enhance performance and ensure stability on the road or track. Proper selection, installation, and tuning will lead to an exhilarating driving experience that showcases the true potential of this iconic vehicle.