Default Posted December 29, 2016 Share Posted December 29, 2016 R34 25GT-FOUR Hello everyone, i have been looking up some information on a R34 25GT-FOUR that i might be buying soon, the question i'm trying to find an answer to is the AWD system, is a the same setup as a torque split or is it always in 4wd mode. A few sources have said its always in 4wd mode and others say its 2wd until traction is lost. What makes it more confusing is that it is running a R33 RB26DETT engine with a R32 gearbox. Thanks Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/ Share on other sites More sharing options...
KiwiRS4T Posted December 29, 2016 Share Posted December 29, 2016 The R34 atessa is always on - supplying 5% to the front until the computer tells it to increase it.. Despite the fact that it has an R32 box (why??) it will not behave like an R32GTR where you can disable the awd by pulling a fuse. If you want 2wd you can drop the front driveshaft or there is there a procedure you can go through which is not simple. Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7801526 Share on other sites More sharing options...
Default Posted December 29, 2016 Author Share Posted December 29, 2016 Awesome, thanks. I'm not to sure why it has a R32 gear box, it used to be a RB25DE auto and has been converted to manual, which also brings up another question. At the moment the speedometer is not reading the correct speed and the cluster is still the auto cluster, replacing the cluster with a manual wont fix the speedometer problem? I'm assuming that ill need to get a speedometer corrector installed. Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7801528 Share on other sites More sharing options...
dr phil Posted December 29, 2016 Share Posted December 29, 2016 Probably the speedo is wrong because the speed sensor pinion from the gt four wasn't fitted into the R32 gearbox. The gt four has 4.34 diff gears, whereas gtr has 4.11, so you need to use the correct speedo sensor pinion.I have a R33 gtr gearbox in my R34 gt4 - in fact you can swap an auto 4wd gearbox speedo sensor into the manual box. This is what i did.In other words, you need the R34 gt four speed sensor, to match your diffs. Note that I'm assuming the car has kept the 4.34 diffs, not swapped to 4.1. Either way, they just have to match. Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7801538 Share on other sites More sharing options...
KiwiRS4T Posted December 29, 2016 Share Posted December 29, 2016 OK I see why they used 32 box to replace an auto but the 32 had a cable drive speedo whereas the 34 is electronic so not a simple fix. Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7801548 Share on other sites More sharing options...
Default Posted December 29, 2016 Author Share Posted December 29, 2016 I belive the r32 gearbox has had a cable to electronic conversion completed on it, which means the only solution will be to splice the wires and install the speedometer corrector. Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7801562 Share on other sites More sharing options...
dr phil Posted December 31, 2016 Share Posted December 31, 2016 I have read varied opinions regarding whether the factory electronic sensor from R33/R34 will or won't fit into the R32 box. I haven't tried it. Did some research though, the speedo drive gear on the output shaft is the same, R32 to R33. I think even the rear housing is the same.Also, correcting myself from above, GT four is factory with 4.363 gearing. Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7801749 Share on other sites More sharing options...
Default Posted February 11, 2017 Author Share Posted February 11, 2017 Hello again, sorry to bring up an old topic. Assuming the r32 gtr gearbox has the conversion to electric signal completed, will a universal speedometer corrector work with little to no issues? Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7810536 Share on other sites More sharing options...
Default Posted February 11, 2017 Author Share Posted February 11, 2017 Also here are the receipts for all the work that has been done. https://imgur.com/gallery/qNLIb Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7810538 Share on other sites More sharing options...
KiwiRS4T Posted February 11, 2017 Share Posted February 11, 2017 Did you buy it? Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7810555 Share on other sites More sharing options...
Default Posted February 11, 2017 Author Share Posted February 11, 2017 Not yet, thinking of buying it within the next 2-3 weeks. Link to comment https://www.sau.com.au/forums/topic/468359-r34-25gt-four/#findComment-7810565 Share on other sites More sharing options...
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