Jump to content
SAU Community

Recommended Posts

I suspect my LSD is getting tired so I'm investigating a newie. I've come up with the Nismo Pro 1.5. It comes in 2 versions, one of which is adjustable for how much it locks up. It has three settings (low / med / high) depending on what use you've got for it. This can be adjusted externally on the side of the diff housing with a socket set. All you got to do is get the car on a hoist or some ramps / stands and away you go. Cost difference is $170 so negligible in the scheme of things....

So the question is.....in the real world how useful would this feature be? And is it reliable? I guess it's Nismo, but it also sounds like something else to go wrong.....

Thoughts?

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/
Share on other sites

Best advice is to down load the manual off the Nismo website & see for yourself how easilly (or otherwise) the pre load can be adjusted. Then decide if it is a useful feature. For my 10 cents it is not worth the effort. They are an agressive diff in anycase, irrespective of the setting.

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4173338
Share on other sites

Perhaps then the lower setting would be useful for the road? Given occasional track use and some road use what other diffs do you think I could be looking at?

Thanks.

I have a GT Pro and have it set on the lowest pre-load setting... its still really aggressive. If you wear semi-slicks it will really bang and crash in the rear end as it loads and unloads.. wearing street rubber, it will still 'chatter' the tyres in tights turns at slow speeds just like a locked diff.. but its not so bad on streets. If it were your daily driven car - it would annoy the b'jesus out of me and is possibly pretty hard on your tyre wear.. If its more Sat/Sun and track days - its a great option.

I would investigate the GT Pro TT if I were you - same diff but slightly less aggressive. I haven't tried it so can't say how much less..

The other one I would look at, just from what I have read, the ATS Carbon..

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4175369
Share on other sites

Thanks for that. It will have R spec and won't be a daily but that all sounds like a lot of agro. I was told by the supplier the TT was for track use........Best I do some more research.

Any other opinions or experiences out there?

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4175463
Share on other sites

Thanks for that. It will have R spec and won't be a daily but that all sounds like a lot of agro. I was told by the supplier the TT was for track use........Best I do some more research.

Any other opinions or experiences out there?

Yep TT is for track use (so is the normal Pro - that's what I use it for). The difference is the Pro has a 55degree ramp angle and the TT has a 45 degree ramp... the idea I believe is that the TT locks up a little more progressively that the normal pro - and that makes it a little more friendly through corners.. (apparently).

If it is not for daily though, the Pro is a very good diff and you'll find it hooks up great.

Good luck with it anyway.

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4175574
Share on other sites

I have the TT Pro in my 32R. Sure it hops a wheel but it makes the rear feel more predictable IMHO. Do it! The TT is fairly easy to live with although I wouldn't want to use it in a daily.

Have a read of this interesting diff thread

Thanks. so did you put the Nismo kit in your std diff?

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4176041
Share on other sites

OK. So I've been on the Nismo site and yes the TT is the milder diff, contrary to the advice I thought I'd been given by a vendor! Sounds like that'd be more suitable for my application. Next hurdle is the 1.5 way versus the 2 way (or other brands.....). I understand the std R32 GTR rear diff is a 2 way, but that it is quite a slack diff? So not too aggressive. I also understand the 2 way locks as much on decel as accel, but don't beleive that this relates specificaly to how aggresive the diff is e.g. the skipping and chattering etc but this inference seems to have been drawn in some threads.....?

So, what is the effect of a 2 way compared to a 1.5 way both in terms of its livability day to day and its performance as a diff when its doing its stuff (its....)

Thanks.

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4176630
Share on other sites

Yes the stock GT-R diff is a 2 way, but there is much more to it than that.

Firstly the preload on the stock diff from factory is ALOT less than the NISMO item.

Secondly you don't need a diff that locks on the over run in a GT-R - it serves no purpose other than to exacerbate the GT-Rs inherent handling faults, ie understeer.

Third as long as your ATTESSA system is working correctly (ie not worn out) you don't need much in the way of a rear diff. An Attessa controller will eliminate any last vestiges of wheel spin so get one of those instead of going too hard on the diff.

There are two parameters for how aggressive a diff is - the preload & the ramp angle. More preload = more aggressive. More ramp angle = more aggressive.

Lastly check the other Nismo options.

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4176791
Share on other sites

Great info. Thank you. Yeah, good point re the 4wd system. I guess I have a switch to 'lose' the fronts for a little sideways action so am interested in the diff as a 2wd set up too.

I'll look into all the points you've raised.

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4176891
Share on other sites

^...and it scares small children and old people. lol

Thanks. so did you put the Nismo kit in your std diff?

Nope. Pro TT LSD...I like it. Not too clunky at the factory setting. I'll see how I go when I get a chance to try it out at the track

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4178328
Share on other sites

Yes the stock GT-R diff is a 2 way, but there is much more to it than that.

Firstly the preload on the stock diff from factory is ALOT less than the NISMO item.

Secondly you don't need a diff that locks on the over run in a GT-R - it serves no purpose other than to exacerbate the GT-Rs inherent handling faults, ie understeer.

Third as long as your ATTESSA system is working correctly (ie not worn out) you don't need much in the way of a rear diff. An Attessa controller will eliminate any last vestiges of wheel spin so get one of those instead of going too hard on the diff.

There are two parameters for how aggressive a diff is - the preload & the ramp angle. More preload = more aggressive. More ramp angle = more aggressive.

Lastly check the other Nismo options.

The ATTESSA controller, is the Ruzdic engineering the one to go for? Are there alternatives? Be interesting to read up on these. Thanks for your input.

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4180484
Share on other sites

The ATTESSA controller, is the Ruzdic engineering the one to go for? Are there alternatives? Be interesting to read up on these. Thanks for your input.

If its for circuit/track then yes. I use one. Probably no good for drags as it doesn't take the longitudinal G into account... only lateral. At least that is my understanding of it. So launching is just the same as stock more or less... only in the twisty bits does it come into play.

Haven't had the opportunity to drive with any other though, so can't make back to back comparison I'm afraid.

Link to comment
https://www.sau.com.au/forums/topic/238720-nismo-pro-lsds/#findComment-4180551
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Join SAU NSW for a flame-grilled feed & flame-spitting cruise! Sunday 17th August 2025 3:30PM Meeting Archies Flame Grille Sylvania Waters 4:45PM Cruise Departure 5:15PM Arrival at Cape Solander Kurnell Meet Location: Archies Flame Grille Final Destination: Cape Solander Kurnell *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • Yeah good luck out there! Will be good to see a mighty GTST going harder than the GTRs
    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
×
×
  • Create New...