R32 Master Cylinder Changeout

[djr81]

I presently have a poverty pack R32 GT-R with the Sumitomo callipers etc. As part of a brake upgrade I wanted to change the master cylinder to make use of the larger bore as seen on the Brembo equipped R32's & the 33's etc. The question I have is what is the easiest way of doing this. Now I would think that a master cylinder from a Brembo equipped GT-R would be a straight bolt up but I suspect that it will be next to impossible to find one.

Question is: does the master cylinder from the R33 GT-R fit the R32 GT-R?

Here is a photo of my 32.

Edited November 22, 2007 by djr81

[Beer Baron]

I can't wait to hear the answer to this I have the same question. I have done some research and can tell you the 32 GTR Vspec brake master costs about $360 brand new. The 34 GTR master costs a measly $280. (both prices approx off the top of my head).

The only differences I can see in them is the shap of the fluid resevoir but I'm not sure if they come with our without the resevoir.

I say buy a 34 GTR master, then tell me if it fits.

[sav man]

i'm also watching, I need a bigger master cyinder. The R33 & R34 have the diferent shaped resevoir, but I can't see why that would matter.

Didn't you get a 33 matster cylinder bb?

[djr81]

I can't wait to hear the answer to this I have the same question. I have done some research and can tell you the 32 GTR Vspec brake master costs about $360 brand new. The 34 GTR master costs a measly $280. (both prices approx off the top of my head).

The only differences I can see in them is the shap of the fluid resevoir but I'm not sure if they come with our without the resevoir.

I say buy a 34 GTR master, then tell me if it fits.

Sounds like I should just go and buy a new one. Re-sleaving a second hand one will make it way more expensive.

You don't have a part # by chance?

[Ronin 09]

I have CP555s and rear GTR brembos... haven't found the need for the larger bore master cylinder...

pedal is great and not long either.

[sav man]

I have brembo/porsche gt3 6pots, and Sumitomo rears, and my pedel is longer now, I give it 2-3 taps before each big stop at Symmonds.

[Beer Baron]

R34 GTR master is 46010-AA320

R32 GTR V-spec master is 46010-05U02

not sure what that includes, so order one then tell me!

[djr81]

I have CP555s and rear GTR brembos... haven't found the need for the larger bore master cylinder...

pedal is great and not long either.

Should do. Don't the CP5555's have a smaller piston area than the BRembos used on the GT-R's?

[Beer Baron]

less talky, more orderey.

[djr81]

I just orderied myself some rear calliper, um, ies. So the bank account is back to its usual parlous state. Not sure I am in the position to take one for the team just at the moment.

I will put it on the list with the other 428 bits of crap that I need from Nissan that may or may not fit.

[Ronin 09]

Should do. Don't the CP5555's have a smaller piston area than the BRembos used on the GT-R's?

yep - cp5555s have slightly smaller piston area than the Sumitomos, the Brembo rears have slightly larger piston area than the Sumitomos...

worked out ok... and even bias is ok - not locking rears or anything - even with the 322 rear rotor.

sweet

[Scooby]

I say buy a 34 GTR master, then tell me if it fits. :)

sell me your 555s, then i'll buy one and tell you if it fits.

[djr81]

So does anyone have an actual answer?

[Beer Baron]

I hope so. anyway I think I'll try the 34 GTR one. it has the ports in the same place etc so it should be ok. the only problem I can forsee is the fluid level sensor and perhaps fitting the resevoir to it (that's if it doesn't come with one).

[Swiper the Fox]

i think the Z32 cylinder has a larger bore and is a direct fit...can confirm this with John Pelican at Unique.

i have one in stock for $130 plus freight if anyone is interested

[djr81]

Well the fit & the brake balance are the two fundamental issues. Doesn't matter about the price if the first two are wrong.

[sav man]

i think the Z32 cylinder has a larger bore and is a direct fit...can confirm this with John Pelican at Unique.

i have one in stock for $130 plus freight if anyone is interested

Arn't the z32 bias levels up the creek for a GT-R?

[Scooby]

try calling Geoff at SSS Automotive in Sydney. i suspect he'll either have one, or know, or know someone that does, and a more helpful bloke you won't find. hornsby nissan might also know.

[Gav]

Thread back from the dead - did it ever get resolved if a R33/34 GT-R reservoir fits?

Alternatively is there a local commonly available option that will work (eg Patrol etc)

[djr81]

Thread back from the dead - did it ever get resolved if a R33/34 GT-R reservoir fits?

Alternatively is there a local commonly available option that will work (eg Patrol etc)

Closest I found was this. It is from an R34 so they do fit, but it was done in Japan & the bloke concerned obviously couldn't say how much messing around it required.

http://www.skylinesaustralia.com/forums/Eo...;hl=rockhampton