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The R32 version of the Nissan Skyline GT-R had an all wheel drive system called ATTESA-ETS. For the R33 the Vspec had ATTESA ETS Pro which included active lockup of the rear differential, or A-LSD. The R34 Vspec also got the active rear differential.
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A-LSD light added to an R32 GT-R cluster.If you are going to go, go all the way |
R32 GT-R with A-LSD differential |
The A-LSD or active diff tries to be the best of both worlds. An open diff when you want it, and a locked differential when you want it. On the street cars- aka production cars, the only real input that we see effecting lockup is the TPS sensor, or throttle. Off throttle the rear diff is open. On throttle, it locks up. More throttle more lockup.
R34 A-LSD and ATTESA system hydraulic diagram |
This is in no way necessary for 99.99% of the people in the world. This was done more of an exercise, to prove we could. There are a few companies in Japan that have done it, but it requires a lot of parts, wiring information, and overall GT-R knowledge to make it work. You don't need it, but if you have to have it, it is possible. No I am not going to help you for free. Work it out on your own.
That black box is a yaw rate sensor, normally for Hicas. This isn't for Hicas. The bulkhead fitting is for an Accusump |
R34 ATTESA Pump, and A-LSD control |
ATTESA - The Nissan Skyline GT-R All Wheel Drive System
R34 GT-R ATTESA ETS-Pro Circuit Diagram and Component Location
How to Bleed the ATTESA System
GT-R, GTS4, FX35, R35 Transfer cases
Diagnosing common ATTESA faults
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