Jump to content
SAU Community

GTS4 diff ratio - help a lady!

SHRED1
 Share

Recommended Posts

SHRED1 Apprentice

SHRED1

Posted
Posted

Hey guys,

 

I'm looking to find the diff ratio for a r33 NA GTS4 (unfortunately, the car is automatic).. I've been online and I've read so many different answers.. Can someone help a lady out?

Looking to drop a RB25det into it..

Appreciate it!

Link to comment
https://www.sau.com.au/forums/topic/469045-gts4-diff-ratio-help-a-lady/
Share on other sites
Duncan Grand Master

Duncan

Posted
Posted

I don't know....but I do know you don't need to know the diff ratio to change the engine. you just need to re-use your current sump to keep the current front diff ratio.

If no-one knows the answer for sure the quick way is to turn count how many times the tailshaft turns for 1 full turn of the rear wheels. More accurate is taking the rear cover off the diff and reading the number of the diff's pinion gear.

My guess is that it's 35/8 ie 4.375. It could also be 37/9 ie 4.1111

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Your car will most likely be 4.363 (don't know if the auto is different).

However if you want to drop an RB25DET in it and retain the AWD your best bet is an AWD Stagea engine - preferably a Neo - and as Duncan says bolt your existing sump on it to retain  the correct gearing. Or you could keep the Stagea sump (with most likely a 4.1 diff) and find a rear diff to suit.

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • thatjawncrazy
      ER34 RB25DE Auto - Would a flush ever fix an "A/T" light?

      By thatjawncrazy · Posted

      interestingly enough, i found out the answer is yes. doing a flush did fix my recurring A/T light. it might have been because of the trans filter: but that doesn't really make sense to me. the fluid/filter was super dirty. would that increase the pressure in the lines and trigger an A/T light? does the car even have a way of detecting that? i have no idea. i've done 200+ miles after the flush and no A/T light. if my A/B solenoids went bad, i would think the light would've come on. shifts and drives way better now though...at 2k rpm instead of 2500...no hesitation and downshifts when i want it to. 
    • Milkmun
      MLR's Bogan cruise ship

      By Milkmun · Posted

      Body colour for me.
    • MBS206
      MLR's Bogan cruise ship

      By MBS206 · Posted

      I vote go red. Only because I hate keeping gloss black clean. Was no worries helping out either! Glad you've survived the rain outs of QLD
    • The Bogan
      MLR's Bogan cruise ship

      By The Bogan · Posted

      I would again like too thank Matt for his help in me sourcing the detachable hard top for the little red car, without Matt's assistance in inspecting it and locking it down, I can guarantee it would have sold before I could get up to see it,  and as that was the only available NC hardtop in Australia, I consider myself extremely lucky on multiple levels To say I'm more that happy would be an understatement And, it is 100% water tight, I drove through torrential rain coming back south, and by torrential, they type of rain that doing 40kph in a 110kph zone was a real thing, and even then, the standing water on the Hwy was deep enough to throw waves I'm also more than happy that the huge "BEASTS" that Matt calls dogs didn't eat me for lunch, I'm sure the sniffs and licks were more to "taste test" me, over being to friendly Now to work out what colour to get it painted, panel match, or gloss black........first world problems are real
    • silviaz
      R34 GT Indicator not Cancelling

      By silviaz · Posted

      Actually I might have figured out. Looks like there is a tab according to google images but it's hidden. Silly me.
×
×
  • Create New...