Jump to content
SAU Community

Recommended Posts

Hey guys,

I have done a few searches on this and have found out some info but am confused by some aswell, Through a twisted chain of events my r32 GTR has got a standard 4.11.... diff in the rear, and now as (completely installed) what appears to be a 4.364 diff in the front. NOT GOOD!

We are not exactly sure which diff it is in the front but from turning the shaft and counting rotations that what mechanic estimated it to be, around that.

What I was wondering is

1. Rather then change the fron diff, should I just leave it, and replace the rear.

1a. is there many compliactions with doing this????

2. Is it possible to switch the front diff without ripping engine out???

3. If the mechanic reckons the front diff ratio is around the 4.5 mark is there any other ratio diffs that it could be, regardless I he is gonna get in and have a look on the crown wheel, I'm just trying to see if I can start trying to source a new front or rear

If anyone has got an incite into this problem that would be a great help,

cheers guys

AsH

Link to comment
https://www.sau.com.au/forums/topic/182041-gtr-diff-questionz/
Share on other sites

you really need to get in there and find out what the exact ratio is of the front diff. a common swap is GTS4 diff which is 35:8. if this is what you have in the front then I would suggest hunt down a GTS4 rear diff and use that crown wheel and pinion with your current GTR centre in the rear. then you'll have the same GTS4 ratios front to rear. if it is actually 4.364:1 I have no idea what it could be out of. I can't even think of a CW/Pinion combo that would give a ratio of 4.364. I would say it's most likely the GTS4 diff he just did some bad maths. :P

you really need to get in there and find out what the exact ratio is of the front diff. a common swap is GTS4 diff which is 35:8. if this is what you have in the front then I would suggest hunt down a GTS4 rear diff and use that crown wheel and pinion with your current GTR centre in the rear. then you'll have the same GTS4 ratios front to rear. if it is actually 4.364:1 I have no idea what it could be out of. I can't even think of a CW/Pinion combo that would give a ratio of 4.364. I would say it's most likely the GTS4 diff he just did some bad maths. :P

If i remember right the 4.3 final is the same final they used in the GROUP A GTR in japan, i've seen a few for sale on yahoo label nismo group a or nismo n1

If i remember right the 4.3 final is the same final they used in the GROUP A GTR in japan, i've seen a few for sale on yahoo label nismo group a or nismo n1

group A cars used lots of different ratios all custom. they may have used a 4.3 for some tracks, but again I don't know what Crown wheel/pinion combo would give an exact 4.3 ratio.

  • 1 year later...

ok..

Im re-hashing an old thread so as I dont have to start a new one.

I have an R32 GTS4 standard diff - 4.375 Diff ratio - Yes?

And is this an open diff?

Now, Im using it for drifting and im looking for a a cheap LSD.

An R32 GTR is a mechanical 2 way. Yes?

4.111 diff ratio - Yes?

Now, R200 refers to the crown wheel - 200mm - Yes?

Is an R200 diff a GTR diff?

What is the name of a GTR (Non - Vspec) LSD Diff?

Could I get a GTR diff center and drop into my housing?

Edited by GTS4WD
Now, R200 refers to the crown wheel - 200mm - Yes?

Is an R200 diff a GTR diff?

What is the name of a GTR (Non - Vspec) LSD Diff?

Could I get a GTR diff center and drop into my housing?

Using google for "r200 GTR diff" I found some results and this site: http://forums.nicoclub.com/zerothread/243052 advises the casing's are different

All I found was "R200" diff and that its the shortnose version...

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

    • Yes to both! Yes to standard ECU and tune, but exhaust is aftermarket. Unsure on brand. Actually have it sitting in at my desk haha! I have to set it up on my laptop but this is a great next step, will do. So I generally try to shift before 4.5K RPM most times. I largely don't do a lot of high-rev driving, but I will take it up to red 1-2x a week max, as I know the occasional "Italian tune-up" is good for these cars.  Oh wow, is this way better than what I'm getting. Does this mean there's a good chance I have an issue?   Thanks for all the info so far guys.
    • Old Son, did you re-use the Holden ABS in the new shell or try a different module?
    • Yeah, nah. I had the actuator rod off it today. The arm will not move at all. Neither out, nor in. Yeah, you'd think so, but I've been thinking about that. Even when the actuator rod fell all the way off at the beginning of this saga, it would build more boost and faster in lower gears than it would in higher gears, and you'd think that that was the opposite of what should happen. But I strongly suspect that there is a thing with the gearing getting the revs to rise faster, that there must be some transient effect with the gas flow rate rising quickly, that you don't get with the more steady state case of the higher gears. Keep in mind - the gate is not shut in either of my weirdnesses. So things are not "normal". We normally think about a turbo spooling up (below the wastegate target) with the gate shut. I have all sorts of mental models running now where the gate is a little bit open, and having it stuck open allowing gas out while it should be going through the turbine has all sorts of weird effects (in these mental models). I'm thinking in the higher gears, the ex mani pressure builds to the point where enough gases spill out the wastegate to just prevent the pressure rising much more at all, or just creeping up, all the whole the revs are increasing and getting closer to the point where a gear shift becomes necessary.
    • Is it possibly wastegate actuator itself is sticking, or even the rod to flapper? Otherwise I reckon things are getting a bit rusty/worn   Also odd it won't boost in 3rd to 5th, but will in 1st, I'd expect the other way around with it slightly open as there's more time on your way to redline for it to spin up
×
×
  • Create New...