8HP to GTR transmission package

Build your complete 8HP to GTR package | everything you need: HERE

This is a transmission package to install a 8HP70 transmission in your Nissan Skyline R32, R33 or R34 GTR. It includes a prepped transmission and all required parts for the mechanical installation.

Note that propshafts, oil cooler and controls are not included in this kit please use our full package configurator if you want everything included for your swap.

The transmission included are used, and comes from a BMW originally equipped with the N57 engine. 

8HP70 is the first gen transmission and the 8HP75 is the second gen transmission

The package contains:

• Used transmission fully inspected with  modified rear planetary gear installed.
• Complete HPR 8HP skyline GTR conversion kit
• Options between Gen 1 and Gen 2 transmissions
• 90 days warranty for peace of mind

 

Used 8HP transmission specs

As standard, we include the upgraded A and D backing plates from Sonnax, all new seals, and breather mod kit installed.

All our used transmissions come with a 90 day warranty for peace of mind. 

Prepwork included

• Remove all internal components
• Remove mechatronics module
• Disassembly and inspection of all internal components 
• Inspect/measure all clutch packs/replace with new if needed 
• Supply and install Sonnax HD backing plates for A and D clutch
• Remove/install rear planetary gear (modified for GTR kits)
• Supply and install rear seal kit/HPR output change (if purchased separately in kit)
• Supply and install HPR breather mod-kit
• Supply and install HPR front seal kit
• Reinstall all internal components acc to specification
• Install Oil pan, mechatronics module, wiring plug
• Acid clean of transmission

External prep work package

• Remove outside webbing for tunnel clearance
• Make clearance for starter motor
• Make clearance for front propshaft
• Prep rear flange for adapter installation
• Weld thread inserts to converter

 

Upgrade packages for 8HP transmissions are avaliable for purchase separatley.

 

 Note

• R34 GTR transfercase will not work with this kit
• Front propshaft needs to be extended
• Rear propshaft needs to be shortened for R32 and R33 chassis
• Chassis clearancing needed for 70/75 versions
• Tunnel clearancing for 95X version is yet to be confirmed

"This product is a custom order with our supplier and cannot be refunded."

Please contact us at info@hpr-tuning.com for more info and availability as lead time can be up to 16 weeks.

Controller, wiring, propshafts and oil cooler kit must be purchased separatley.

 

8HP 70/75 build packages by HPR

All build packages are listed with a conservative HP and Torque (Nm) rating for good longevity of the transmission. The estimated rating can be used for all applications including Drag, track and street.

• HPR basic 800Hp 800Nm

Full internal inspection, Installation of Sonnax HD backing plate for A and D clutch.
Installation of new seals. The above parts used in the basic package are included in transmission purchase

• HPR Cat 0 build 1000Hp 1000Nm
  

This is a clutch stack rebuild, (stock capacity) done in house at HPR
Recommended for low mileage transmissions in good condition.

Installation of Suncoast Cat 0 kit:
Full disassembly, clean, all rotating assembly thoroughly inspected.
Dry stack clutch build to set clearance, final wet build.
Installation of Sonnax HD backing plate for A and D clutch.

Note
Sonnax HD E-hub will be replaced for all 38 spline applications and invoiced separatley.

 

• HPR Cat 1 build 1000Hp 1000Nm

This is a full transmission rebuild, done in house at HPR
Installation of Suncoast Cat 1 kit with following options:

Zip kit and Bushing kit from Sonnax, New genuine ZF solenoids if required.

Our work progress
Full disassembly and clean, all rotating assembly thoroughly inspected.
Replace pistons w seals. Install Sonnax bushing kit.
Full valve body teardown and clean, installation of Sonnax Zip kit and new molded valve body separator plate. Ream/replace with oversize valves if needed. Overhaul/test solenoids/replace with new if needed.
Full post test of valve body. Dry stack clutch build to set clearance, final wet build.

Note
Sonnax HD E-hub will be replaced for all 38 spline applications and invoiced separatley.

• HPR Cat 2 build 1300Hp 1300Nm
  

This is a full transmission rebuild, done in house at HPR
It comes expanded capacity clutch packs, and all the contents from the Cat 1 build plus
Sonnax HD E-hub and Suncoast Oil pump.

Installation of Suncoast Cat 2 kit with following options:
Zip kit and Bushing kit from Sonnax, New genuine ZF solenoids, Suncoast Oil pump, Sonnax HD E-hub

Our work progress
Full disassembly and clean, all rotating assembly thoroughly inspected.
Replace pistons w seals. Install Sonnax bushing kit.
Full valve body teardown and clean, installation of Sonnax Zip kit and new molded valve body separator plate. Ream/replace with oversize valves if needed. Overhaul/test solenoids/replace with new if needed.
Full post test of valve body. Dry stack clutch build to set clearance, final wet build.

 

• HPR Cat 3 build 1600Hp 1600Nm
  (not yet released)
  
  

This is a full transmission rebuild, done in house at HPR
It comes expanded capacity clutch packs, and all the contents from the Cat 1 and Cat 2 build,plus the Suncoast billet E-hub.

Installation of Suncoast Cat 3 kit with following options:
Zip kit and Bushing kit from Sonnax, Suncoast Oil pump.

Our work progress
Full disassembly and clean, all rotating assembly thoroughly inspected.
Replace pistons w seals. Install Sonnax bushing kit.
Full valve body teardown and clean, installation of Sonnax Zip kit and new molded valve body separator plate. Ream/replace with oversize valves if needed. Overhaul/test solenoids/replace with new if needed.
Full post test of valve body. Dry stack clutch build to set clearance, final wet build.

(Release TBC)