Stagea Gtr Conversion

[OutStagea]

Hey, i'm just in the middle of converting my stagea s2 to a gtr. I picked up a half-cut, rear k-frame and diff from an R32 GTR. At the moment, both motors are on the floor and we have started transferring and modifying. Just wondering if anyone has done this sorta swap before, and has any useful advice, or knows what problems they had and how they overcame them?

[Xmetal]

I think Darrinspencer has done it, he'll be along soon.

[Stinky Rooster]

Jeez man, thats a HUGE job - what are you going to do about the ECU? Feel free to share some build in progress pics

[BoyWhoCriedWolf]

^this man, he knows.

Just buy mine and be happy.

[darrinspencer]

There is a bit of a DIY section here. It has been done before.

http://www.skylinesaustralia.com/forums/Rb...al-t106465.html

I have only done a auto to manual conversion and 34 gtr front end, but not motor.I still have the rb25 in mine. I did consider the motor at one stage when a 260RS front cut and rear end was offered to me at a good price.

[OutStagea]

Yeh, we are a little concerned about the ECU, but we unplugged the stagea ECU and all the accessories and stuff seem to work still, so we were hoping to use the R32 ECU with a modified loom, and hope for the best. Will this work? The ATTESA system, how will this be affected?

[Stinky Rooster]

Dude, I don't claim to be an expert, but its my understanding that the R32 ATESSA system and the stagea ATESSA system (based on the R33) are poles apart - you can't just pull a fuse to run in RWD like you can in a 32 (and there are people on here who have the destroyed clutch packs from the transfer case to prove it)

When you say "everything" works, I assume you are talking about the body? (doors, windows etc)

Wouldn't you be better off with an aftermarket system?

[darrinspencer]

Yeh, we are a little concerned about the ECU, but we unplugged the stagea ECU and all the accessories and stuff seem to work still, so we were hoping to use the R32 ECU with a modified loom, and hope for the best. Will this work? The ATTESA system, how will this be affected?

Attesa has its own computer, seperate to the engine ecu. I think it will need some feeds form the ecu

Talk to Brad, user name unquie1, his old user name is cruiseliner, the guy who wrote the diy section

He has done it all before.

[rb26stagea]

Mine was done in the same way, but with R33 parts, and a power fc. Al work was performed by Herman, at envy imports in Brookvale, NSW. Give him a bell, if needs be: not sure what the differences are using R32 parts, but I understand they are substantial...?

[unique1]

ive done it and its pretty simple ask away and ill answer best i can, i did it 3 years ago now so my memory isnt the best to list everything off the top of my head

i ran an aftermarket ecu in mine (autronic) so wiring wasnt as difficult as the stock gtr loom. Im about to put a pfc in the car so i have to wire in the gtr loom myself and i remember trying it a while ago and it was a real headf**k lol, if u happen to find anything out post it here and ill be happy to help u anyway i can on the mechanical side of things.

ive also done the r32 gtr diff/axles/unis into rs4 stagea too and its also a long winded process.

http://www.skylinesaustralia.com/forums/Gt...amp;hl=gtr+diff

the attessa ecu in the rear of the car requires a tps signal from the engine ecu loom

Edited July 18, 2008 by unique1

[GoldZilla]

Firstly, let me wish you a welcome to SkylinesAustralia, and to the Stagea section of these fine forums! I'm not sure how long you've had your Stagea, but I'm pretty certain that it will bring you plenty of enjoyment.

Hey, i'm just in the middle of converting my stagea s2 to a gtr. I picked up a half-cut, rear k-frame and diff from an R32 GTR. At the moment, both motors are on the floor and we have started transferring and modifying. Just wondering if anyone has done this sorta swap before, and has any useful advice, or knows what problems they had and how they overcame them?

There you go, Brad is probably THE man to talk to in regards to this as far as the owner-experience goes.

Whereabouts in Australia are you? If you let us know this, we can probably help point you in the right direction in regards to who else to speak to, where to get parts from, and I'm sure there'll be at least a few people who can probably help in the process of the conversion.

[Raysboostin]

sorry to thread steal, but a friend of mine wants to convert an auto stag to rb26 manual and he wants to know about the attesa.

if he gets a r32 front cut and uses the r32 gearbox, transfer case and attessa computer will the attessa work the same as the r32 gtr(as in fuse out= rwd powersliding fun)????? or will he need to change the pumps and some other stuff???? any help would be great

cheers

[unique1]

sorry to thread steal, but a friend of mine wants to convert an auto stag to rb26 manual and he wants to know about the attesa.

if he gets a r32 front cut and uses the r32 gearbox, transfer case and attessa computer will the attessa work the same as the r32 gtr(as in fuse out= rwd powersliding fun)????? or will he need to change the pumps and some other stuff???? any help would be great

cheers

it will still work like a r33/34 gtr if u run a 32 tf case and box, its the pumps etc that preload the clutch packs unlike the 32 one which doesnt, allowing fuse pulling as a safe method. I'd be guessing but i'd say the 33/34 setup would retain some sort of one way valve to stop the fluid returning back to the pump when its off and therefore allowing quicker transition into 4wd when its needed, unlike the 32 which has to start fluid from the pump again and thats a delay pushing it through the lines. Dont qoute me on that bit its just the understanding i have of it.

[Raysboostin]

it will still work like a r33/34 gtr if u run a 32 tf case and box, its the pumps etc that preload the clutch packs unlike the 32 one which doesnt, allowing fuse pulling as a safe method. I'd be guessing but i'd say the 33/34 setup would retain some sort of one way valve to stop the fluid returning back to the pump when its off and therefore allowing quicker transition into 4wd when its needed, unlike the 32 which has to start fluid from the pump again and thats a delay pushing it through the lines. Dont qoute me on that bit its just the understanding i have of it.

so it is as i suspected, he'd have to replace the entire attessa system.

out of curiousity if the one way valve was removed wouldnt it that mean u could then remove the fuse and not damage the attessa?? or if u replaced the 33 type pump with a 32 type pump maybe??

this attessa stuff is way beyond my feeble brain

[Duncan]

you might be able to use the r32 pump to run the stage but it really is a downgrade - the stagea/r33 style reacts significantly quicker and has a better balance.

If all you want is a rwd stagea just remove the front driveshaft - only takes about 15 min (or 2 min if you have a hoist lol)

I have a 32 gtr transfer case and it definately still reacts like a 33 system, so the smarts are in the pump and/or attessa computer neither of which will come in a half cut

[Raysboostin]

cheers for that duncan

my mate was thinking more of a drag application. u know flick over to 2wd for the burnout then back to 4wd for the run. plus he's mad keen on skids. i think he should just get an r32 and be done with it.