Jump to content
SAU Community

Recommended Posts

Hi all

I was think of changing my S14 diff to a non V-spec R33 GTR diff. Similar to S15 i think but with shorter final drive.

Can any1 shed any light on wheather this is a straight swap or there is a lot of custom work need??? Any1 else done this??

What about non V-spec R34 GTR??

Cheers

Link to comment
https://www.sau.com.au/forums/topic/56104-r33-gtr-diff-into-s14/
Share on other sites

Well the R33 is a 4.111 which would be good, the R34 has a 3.545 so you probably wouldn't really want to use that. The non-V-Spec diff is pretty tight, only stock diff I have ever heard skipping the tyres when you are parking. Very noice.

In one of the early issues of Speed magazine there is a S14 with an R33 GT-R diff in it and they seemed to think it went in fairly easily.

We put a 32 GTR diff, driveshafts, hubs and brakes on a S14 cause we bought a rear cradle dirt cheap. Don't know how easy it would be without the driveshafts etc as the GTR items are quite chunky compared to the stock S14 items.

We put a 32 GTR diff, driveshafts, hubs and brakes on a S14 cause we bought a rear cradle dirt cheap. Don't know how easy it would be without the driveshafts etc as the GTR items are quite chunky compared to the stock S14 items.

Yes and then you need to use GTR rear suspension.. hassle

Yes and then you need to use GTR rear suspension.. hassle

not at all.... the car still uses the S14a rear cradle. Sure, it required 2 mounts be put on the cradle to suit the GTR diff, but apart form that it all bolted straight in :D

if your wanting to swap the entire diff over, housing and all, you will need the drive shafts and rear hubs as the spline on the GTR drive shaft is slightly different to that of the S14 hub..... you will also need to ad some mounting points from the GTR cradle to the S14 cradle.

Just to add to this thread with Some R33 info. I spoke to a workshop that has tried and the R33GTR Diff will not fit the R33 GTS25t due to the tailshaft flange being different. It wasn't clear if the mountings for the diff were different but at the least a tailshaft mod would be required.

sorry mate, no pics as the car didnt make the hoist..... i did nelgect to mention that the tail shaft will definitely need to be modded as the GTR has a CV joint assembly as the rear universal joint, not a cross yolk like the GTST....

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

    • My thinking is that if the O2 sensor is shot then your entire above described experience is pure placebo.
    • Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
    • -10 is plenty for running to an oil cooler. When you look at oil feeds, like power steering feeds, they're much smaller, and then just a larger hose size to move volume in less pressure. No need for -12. Even on the race cars, like Duncans, and endurance cars, most of them are all running -10 and everything works perfectly fine, temps are under control, and there's no restrictions.
    • Update: O2 sensor in my downpipe turned out to be faulty when I plugged in to the Haltech software. Was getting a "open circuit" warning. Tons of carbon buildup on it, probably from when I was running rich for a while before getting it corrected. Replaced with new unit and test drove again. The shuffle still happens, albeit far less now. I am not able to replicate it as reliably and it no longer happens at the same RPM levels as before. The only time I was able to hear it was in 5th going uphill and another time in 5th where there was no noticeable incline but applying more throttle first sped it up and then cleared it. Then once in 4th when I slightly lifted the throttle going over a bump but cleared right after. My understanding is that with the O2 sensor out, the ECU relies entirely on the MAP tune and isn't able to make its small adjustments based on the sensors reading. All in all, a big improvement, though not the silver bullet. Will try validating the actuators are set up correctly, and potentially setting up shop time to tune the boost controller on closed loop rather than the open loop it is set to now. Think if it's set up on closed loop to take the O2 reading, that should deal with these last bits. Will try to update again as I go. 
×
×
  • Create New...