Jump to content
SAU Community

R33 Brembos

conan7772
 Share

Recommended Posts

Luke_ENR34 Grand Master

Luke_ENR34

Posted
Posted

Im going pedal box so i'll choose my own masters for the calipers i have.

Pretty sure its something to do with vacume. Theres only a few bolts holding them on so see if you can borrow one off a GTR to see if it does anything.

BOZ22N Grand Master

BOZ22N

Posted
Posted

Luke, what does this thing do? You said it's a separator, so it separates vacuum? air? from what?

And I don't think it would feel any less spongy with this thing on.

Boz22n, what diameter BMC did you end up using? What bias adjuster? Ever had any troubles with adjustment range being insufficient, i.e. too much/not enough front/rear bias?

I think it is a 1"1/16 ? the bias is great the prob with the GTR master is the proportion is out for a GTST F/R weights etc.

Jap_star Mentor

Jap_star

Posted
Posted

Bm57 didnt change it one single bit :(

The thing on the left is the thing i didnt have which i think may fix it if i did keep them.

IT WORKS!!!!!!!!!!!

borrowed this off a mates 33gtr today and plugged into my stock BM40. with the lines it comes with as you still need the one way valve , pedal feel was fantastic, a huge improvement, even with stock master

now too get my own

Legionnaire Collaborator

Legionnaire

Posted
Posted

It doesn't. But I think he meant proportioning valve that is built into master cyliner on GTRs, has wrong bias for weight distibution of a RWD skyline. 

Patrol has no integrated bias adjuster in its BMC, so external adjuster is necessary.

I found this "vacuum can" in FAST. It's called "tank-assembly vacuum" in there and has a partnumber 47110-24U01. Must be inexpensive, so if it really improves pedal feel, it may be worth spending a couple of $ on.

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

How does the size of the master cylinder effect bias?

Only guessing here but I would say the diameter has nothing to do with it but if you pull one apart you will see there are two pistons inside and i would guess its the relative travel of those pistons and perhaps the size of the apertures that makes the difference. My car is not quite running yet but I don't expect any problems in my heavy Stagea. Relative size of brakes also makes a difference - whether you are just putting big brakes on the front and by how much you are beefing up the rears.

Legionnaire Collaborator

Legionnaire

Posted
Posted

Ah ok so it's integrated rather than the GTST one which screws in?

It is integrated  in that the BMC body is cast with provision for the integrated prop valve. But the valve internals themselves are then screwed in. Attached are pics of disassembled BM44 prop valve.

BMCs with no integrated valve, like on Patrol and Pathfinder have no valve body cast with them, as seen on the third attached pic.

Actually, I would suppose that other than piston diameter and bias-controlling spring GTR BMC is identical to GTST and GTS BMC.

i would guess its the relative travel of those pistons and perhaps the size of the apertures that makes the difference

Since on tandem master cylinders like ours both pistons are attached to the same rod and has same travel for a given pedal input, I'd say it is only piston size that may be different 

post-36390-0-60883100-1308390352_thumb.jpg

post-36390-0-44880200-1308390362_thumb.jpg

post-36390-0-65235800-1308390620_thumb.jpg

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

    • welshy_32ZILA
      Welshys 32ZILA and the 8HP.

      By welshy_32ZILA · Posted

      I should note too as I have all 4 wheel speed inputs to the emtron I now have the emtron controlling the attessa solenoid for 4wd/traction and launch control strategies. 
    • welshy_32ZILA
      Welshys 32ZILA and the 8HP.

      By welshy_32ZILA · Posted

      It works quite well with the adjustibility within each of the programs of the turbolamik. Essentially p1 is drive and lockup comes on like a normal driver.  But in program 7 I have customised it to not request the lockup clutch to engage until something like 6500/7 when slip was the lowest. 
    • PranK
      Use text replace function to auto-link to referred threads?

      By PranK · Posted

      Yep, I like that. The tags are only on the first post of a thread and we don't get huge numbers of new threads. Also, I plan to add some more report types and we could have a member report type like 'review tags' then members could flag if they thought a topic wasn't tagged correctly.  No way man, I dig the input. Thanks! 
    • GTSBoy
      Use text replace function to auto-link to referred threads?

      By GTSBoy · Posted

      It's a valid thought. There's not exactly that functionality already (when creating a thread) - that's where the OP can use/create any tag they want. We'd have to come up with a way for the user to request their tags get reviewed or something. Otherwise the mods would have to review every new post's tags (for those that have them, anyway). There's kind of that functionality already exists to some extent, post facto of starting the thread, where the OP or any other user could report the post to admins, and request that tags get reviewed. We could do this already, and any user could already have made such a request. To make it a part of the forum proper, it would require an initial and an ongoing education programme, so that people know that it's a thing. OP based tagging/request for review would also require at least some (probably most) of the user base to be told that it's a thing they can do. Both of these things probably wouldn't spread too far and/or get used very much. If it was the standard approach on a lot of different sites, then it might do, because people would be used to it. Prank's approach to this differs from my original thought, by leaning into tagging. Which is fine - it's possibly better than what I originally suggested. In fact, I just went to the R32 GTR wiring diagram thread and added tags, including "Library". That's probably a good way to use tags and the idea of a library. We just have to drag together an (organised!) index of threads or posts that have that tag. I have yet to do any of my own follow up by pursuing worthy threads and posts and reporting/marking/tagging them for the library, such as the @Sydneykid stuff I was talking about, and possibly any amount of @Lithium 's and others' posts. At least if I tag them Library, we'll have a start.   Back to @Wazmond's idea as it relates to @PranK's, we might have some sort of a list of tags that are already used to scrape for this library. I'm not entirely sure how that would be presented or used, particularly if it got long. But it's yet another idea!   cheers
    • Wazmond
      Use text replace function to auto-link to referred threads?

      By Wazmond · Posted

      Just a thought, but instead of restricting, is it possible to do like an "up for review" kind of thing? Where say someone who's not an admin/mod tags, it would require approval for it to actually tag? User posts with a 'tag' > Admin/Mod Reviews > Approves tag > Tag now exists kinda thing? Just came across this thread so Im not too sure if Im straying off topic or not but forgive me if i am...
×
×
  • Create New...