Page 3 of 4 FirstFirst 1 2 3 4 LastLast
Results 21 to 30 of 40

Thread: Jap AE86 Brake Proportional Valve

  1. #21
    Senior Member
    Join Date
    Jan 2009
    Name
    Ian
    State
    WA
    Location
    NOR
    Country
    Australia
    Posts
    564

    Default

    Look man don't be that way dry.gif Unless you have had maybe 10-20 cars like SprinterTRD here you would have never seen the differences

    once again u are saying that i said they are the same
    it doesnt take a rocket scientist to work out what the differences are and u only need to compare a jdm and aus spec ae86

  2. #22
    Bad Email Address
    Join Date
    Jan 2006
    Posts
    69

    Default

    good on you Medicine_Man

    Nice shinny booster there


    upgarage meh if you cannot understand the post

  3. #23
    Senior Member
    Join Date
    Dec 2008
    Name
    Tom
    State
    WA
    Location
    SOR
    Country
    Australia
    Posts
    195

    Default

    The reason I asked the question is I've just done the rear disc swap and now it seem that rear break doesn't work as well or should I say there is less braking power than before.

    After reading about what people have done to fix this including the one about gutting the springs from the original valve etc. the aftermarket propotional valve idea seem best. However after talking to the guy at the local brake shop he said that its not a good idea to fit aftermarket valve as they are not as good as everyone think they are. He recommended that I should do it properly with proper valve and booster etc.

    So now that we have established that valves are physically different external and internal, but can be made to fit. How about the booster is the Jap one bigger? can you still get them new from toyota? what else is different?

    Tom

  4. #24
    Senior Member
    Join Date
    Jan 2009
    Name
    Ian
    State
    WA
    Location
    NOR
    Country
    Australia
    Posts
    564

    Default

    astroboy are you dorio86 because u talk a lot of shit

  5. #25
    Senior Member ToySprinta's Avatar
    Join Date
    Dec 2008
    Name
    Steve
    State
    NSW
    Location
    Padstow
    Country
    Australia
    Posts
    557

    Default

    Booster is the same. With my rear disk brake conversion all i did was change the diff and prop valve to the disk brake type.
    Pulls up strong

  6. #26
    Bad Email Address
    Join Date
    Jan 2006
    Posts
    69

    Default

    Tom86 , so the car didn't have discs before ?or did ? Or is it that the rear calipers on the diff you fitted are seized ?

    doriogarage just accept you where wrong in guessing

    Don't get pissed at not knowing or you will never learn shit from anyone here or anywhere , see you have added to this post even when now you are just straightout being a dickhead

    If you cannot prove differently or stand up against facts what is the use ? pointless really

  7. #27
    Member
    Join Date
    Feb 2009
    Name
    anz
    State
    NSW
    Location
    Sydney
    Country
    Australia
    Posts
    73

    Default

    keep fiting!!!!!
    its the funny

    jap booster is the same from memory
    personally i wouldnt trust anyones word on these forums
    if you really wana find out
    get the epc out and have a looksie and compare yourself

    let the girls keep fighting
    =)

  8. #28
    Senior Member
    Join Date
    Jan 2009
    Name
    Ian
    State
    WA
    Location
    NOR
    Country
    Australia
    Posts
    564

    Default

    ok astroboy
    tell me what i was wrong about???

    i said they were straight bolt in (which they are)
    and i said they look completely different

    ooo yeah
    im right

  9. #29
    Bad Email Address
    Join Date
    Jan 2006
    Posts
    69

    Default

    Hey if your are going to start deleting your post to look like you where right

    You really should think of how many time you have been quoted as being wrong
    Refresh the first page for a mod you cannot even use the forum to your advantage you really are lost

    edit : stop PMing me doriogarage

  10. #30
    Veteran Jonny Rochester's Avatar
    Join Date
    Dec 2008
    Name
    Jonathan
    State
    TAS
    Location
    Hobart
    Country
    Australia
    Posts
    2,660

    Default

    I don't agree whith this. The bias valve does not have any safety feature to help with leaking fluid. The only safety feature to do with that, is that the master cylinder is a duel system. If the front is leaking the rear will still work (a bit), and if the rear is leaking the front will still work (but your pedal will be down near the floor).

    The bias valve works independantly of the front brakes. It limits fluid pressure to the rear brakes only. Drum brakes (when cold) are more efficient than disks so need less fluid pressure. (Old cars with drum fronts didn't even have a booster). Disk brakes need more pressure to work.

    So when you put rear disks on a car that had drums you need to increase rear brake pressure. The cheap way is to remove the guts of the rear proportioning valve. BUT, test this on a quite road before going in traffic! If its good (rear brakes not locking before the front), then it's good. Be happy. If the rear are locking first, then buy a adjustable valve in place of the factory one.

Page 3 of 4 FirstFirst 1 2 3 4 LastLast

Similar Threads

  1. 4age 16v jap big port rebuilt, jap tseries disc brake
    By 70rolla in forum Car Parts For Sale
    Replies: 4
    Last Post: 4th September 2012, 11:29 PM
  2. Blocked brake proportional valve
    By BARWICK in forum Technical - Questions
    Replies: 2
    Last Post: 25th October 2011, 06:53 PM
  3. Brake master for jap ae86
    By Tim.duncan in forum Technical - Questions
    Replies: 6
    Last Post: 6th April 2009, 08:33 AM
  4. [vic]JDM proportional valve
    By rthy in forum Cars or Parts Wanted
    Replies: 2
    Last Post: 23rd February 2009, 08:00 PM
  5. WTB JDM Brake Proportional valves
    By rthy in forum Cars or Parts Wanted
    Replies: 0
    Last Post: 28th July 2008, 05:07 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •