r32 or r33 gtr 5 speed for conversion???? which one?

[RB26VL]

hey guys i found a r32 gtr 5 speed for sale and i was wondering whether its easier to use the 33 or 32 box and whether they are the same ????

also does the front tailshaft from the auto fit the gtr 5 speed by any chance or will i need a gtr one?

is the attessa 4wd stuff run by a computer??? or hydraulics? or what? and if its run by ecu, is it seperate to the engine ecu???

sorry for the billion q's again but i wanna make sure i buy the right stuff 1st time round

will i need to get a gtr rear tailshaft as well i presume????

i need to sort out what i need and what i dont need

thanks again

Brad

[RB26VL]

oh i forgot...

whats the diff ratio on the stagea autos????

and is the diff good enough to handle the 26 conversion??? is it the same as a gtr diff???

Brad

[Sydneykid]

hey guys i found a r32 gtr 5 speed for sale and i was wondering whether its easier to use the 33 or 32 box and whether they are the same ????

The R33 is rumoured to be a bit better but I haven't seen it.

does the front tailshaft from the auto fit the gtr 5 speed by any chance or will i need a gtr one?

I suspect it is the same, because the transfer case is pretty much the same

is the attessa 4wd stuff run by a computer???

Yes

or hydraulics?

Yes

if its run by ecu, is it seperate to the engine ecu???

Yes

The engine ecu talks to the ATESSA ecu which uses hydraulics to change the preload on the clutch pack which alters the amount of drive to the front wheels.

will i need to get a gtr rear tailshaft as well i presume????

Again I think the auto and manual are the same

i need to sort out what i need and what i dont need

I don't think you can do/know/buy EVERYTHING before you start, I suggest you get the major/known items and just get on with it.

whats the diff ratio on the stagea autos????

Sorry I don't know that, but I suspect it will be different. You need to have both diff ratios the same. So you either use 2 X GTR diffs or 2 X Stagea diffs.

is the diff good enough to handle the 26 conversion???

I would say so.

is it the same as a gtr diff???

Not sure what this question means, ratios as per above. Centre (as in LSD) unlikely to be the same but I don't think it matters.

Personally I would use as little GTR stuff as I could, then if I find a deficiency later on I would upgrade that part. If you just go heavily into GTR stuff everywhere, you will end up spending more money than you need to. The best way, if you really want to transfer everything would be to buy an accident damaged R33GTR and swap over all the parts, that would be cheaper than buying bits one by one.

Regardless of methods, if you change it completely (as in every single part) it would have been cheaper to buy a 260RS. The best way is to do the important/essential stuff and ignore the "nice to have stuff". There is a young NZ guy on the forum whose father has done an RB26 transplant into an N/A manual Stagea, he may be worthwhile talking to.

Hope that helps

[Gary1]

Have done the conversion.

Tailshaft - different

I used a 32 gear box but the 33 box is exactly he same only the clutch is different and the mounting of the slave cylinder on the bell housing.

front tailshaft is the same.

four wheel drive is in the ECU and works fine in my car. ( about to change this to power fc )

There is alot of mucking around to convert but well worth the exercise.

If you have any more questions let me know and I'll try and help.

Cheers

Gary

[mcnamg]

gary did you need to modify the firewall much?

[SafT]

4wd/abs are in the same computer, down the back of the car

the inputs it needs are same as any other atessa ecu (refer 32 gtr workshop manual)

btw sydney kid, im not _that_ young (21 , i've got a 32 gtr myself

the 260rs uses a assisted clutch (needs firewall mods), but you can run unassisted no problem, we run a hks triple plate, the pedal is heavy, but not a killer

we prefer the 32 style box because of the clutch setup

[mcnamg]

so if you want to go for the assisted clutch the firewall needs to be modified but if you fit a 32/33 gtr box you dont need to cut into the firewall? (except for the clutch pedal i guess.

how hard is it to relocate the handbrake?

[Gary1]

there were some firewall mods. apparently if you don't use the power assist, the clutch can be a bit of a pig ie. gear selection with the clutch not disengaging properly.

The hand brake is the bastard thing. all the brackets from the rs260 were used on mine and rs 260 centre console, and i still haven't got the plastic foot rest thingie to replace the auto one.

Cheers

Gary

[mcnamg]

do you have any pictures of the finished product gary?

[Gary1]

can take some. I think Marc took some after it was all done but who knows where they are. I will take some more and post them up.

[mcnamg]

thanks will be a good reference for anyone game enough to attempt it