Posts Tagged ‘gearbox’

Willall Racing Release WR35CP Clutch Upgrades for Nissan GT-R

November 15, 2009 Comments off


Willall Racing have just taken the wraps off their latest upgrade for the Nissan GT-R’s famous GR6 DSG transmission. These clutch packs replace the 12 OE clutch packs with high friction carbon kevlar composite discs and claim to offer 30% increase in clamping friction over standard.

Here’s a full list of the technical benefits:

  • Material: Composite Kevlar carbon high friction
  • Drive Coeff: up to 33% improvement with 0.125 friction index
  • Surface Area: up to 16% improvement in clutch face surface area vs factory
  • Temperature handling: Increase maximum clutch temperature point 400F versus 350F factory
  • Bonding: Double bonded up to 600F resistant, chemical resistant
  • Stiffness: Heat treated high strength steel construction at 68 Rockwell
  • Drainage: Deep wide fluid transfer slots for maximum fluid scavenging and heat transfer
  • Compatibility: Designed to work with factory and Willall transmission fluids

A full set of Willall WR35CP clutches will set you back $995.

Link: Willall Racing Website

PPG Full Gear Set for Nissan GT-R Released

August 6, 2009 Comments off


There are many options on strengthening the GT-R’s gearbox coming to market these days but none so mind blowing as the full gear set we just laid eyes on from Pfitzner Performance Gearboxes (PPG) out of Australia. The full first through sixth gear upgrade is manufactured from high-carbon steel, CNC’d to PPG’s specs which increase gear contact area by up to 40% (first gear). Combine the superior materials used with the heat treating process and the gears are up to twice as strong as standard.

These should suit the high power street GT-R to around the 700 – 900 hp (engine) range.

Head on over to for the details on pricing and availability.

Thanks to Mike @ GT-RR for the heads up.

Link: PPG Website
Link: PPG Full Gearset for Nissan GT-R @