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Bnr34 V-spec Handling Upgrade...

Ares180BPM
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Ares180BPM Explorer

Ares180BPM

Posted
  • Author
Posted

My apologies.

To clarify: I don't want to move away from the active rear differential, however if people know of an aftermarket replacement for this, that retains the electronic control is be keen to investigate it.

:)

GTSBoy Grand Master

GTSBoy

Posted
Posted (edited)

AFAIK there is no aftermarket upgrade to the A-LSD.

Let's be brutally clear here. The very best active diff in a car of similar technological vintage to your GTR is the one in the EVO. Like the EVO 9 for example. Serious users of that car will pay quite large sums of money to buy the mechanical diff out of the RS in order to get rid of the pox-ridden active diff. They usually have to do this because the AYC diff just shits itself, but right up uuntil that point they're usually complaining about how they hate what the diff is doing.

Edited by GTSBoy
Ares180BPM Explorer

Ares180BPM

Posted
  • Author
Posted

Thanks for the input guys.

I won't have the funds to be able to change the rear at this stage but will give it a look in the future.

I've got some expensive panel work to take care of!

Thinking next year I'll refresh the bushes, suspension links and sway bars then see where to next.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Hmmmmm, so will the quaife be any improvement over factory if I'm not changing the rear?

It will, but it will make the A-LSD in the rear behave in VERY strange ways.

I did my front first and rear later. The rear would not lock up properly anymore. It must have something to do with the g-sensors or something that is governing the A-LSD system...

Either way, more grip at the front = the rear A-LSD very unhappy.

Ares180BPM Explorer

Ares180BPM

Posted
  • Author
Posted

Wow, this is quite a disappointment.

Guess I'll keep the diff in storage indefinitely as I'm not wanting to move away from the active rear diff any time soon, otherwise what's the difference between a v-spec and standard after the suspension has been replaced.

Thanks for the input.

Piggaz Grand Master

Piggaz

Posted
Posted

The badge, front and rear diffusers on The V - Spec, 2 extra fields on the MFD and the quicker 4WD computer.

Nissan should have done us all a huge favour and left the mechanical diffs in instead of being fancy.

Ares180BPM Explorer

Ares180BPM

Posted
  • Author
Posted

In other news, doing the engine Mounts realigned the intercooler to intake manifold piping, fixing a boost leak I didn't know I had.

Found a second hand front pipe and got rips to make a pair of AFM Delete pipes.

FPR and retune later and I'm up 25kw with a similar gain in torque.

Stoked

  • 2 weeks later...
QUP29 Community Regular

QUP29

Posted
Posted

what about changing diff ratios 4.11, utilizing the gtr 33 v spec diffs?

would make the car feel more responsive but you'll be shifting alot more often but it would be more fun on track days.

I've also Binned my A-LSD aswell...

nick_7g Proficient

nick_7g

Posted
Posted

I just put a cusco one-way in the front of my R34 V-Spec (<$1k landed). A-LSD hasn't caused any issues as yet, but I've not pushed it hard or been on the track yet.

The A-LSD thing is annoying. If it was as easy as replacing the centre, I would have done it already given everyone's feedback on diffs.

I'm doing similar things to the OP:

Got Bilstein PSS9s, Ikeya upper arms F+R, DBA4000s, crap pads (going to change) and have ordered the Whiteline sway kit F+R+links.

Having said all that, you can't discount the impact of good tyres. I'm running on 400 treadwear P-Zero All Seasons which are not confidence inspiring at all. Would budget for good tyres.

Feedback on rigid collars is interesting.

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