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    Thread: vw rallye/syncro 280mm big rear brake conversion

    1. 05-18-2010 10:05 PM #1
      hi all

      after seeing lots of big front brake conversions
      and doing a 325mm one myself
      the rear brakes always looked silly
      i remembered seeing i think on here a set of rear calipers adapters

      so after much headache lol as i couln't find post

      have ended up with this
      280mm vented rear disc 4 x 100 or 5 x 100 (5 x 100) shown
      audi calipers and carriers



      had hubs machined so they are 4 x 100 and 5 x 100
      cnc'ed brake adapter
      also had a set discs changed
      so have one set of 4 x 100 discs and one set of 5 x 100 discs
      not sure what wheels im going to run
      just waiting for 10.9 grade bolts to tighten it all up
      Last edited by bam20v; 05-18-2010 at 10:07 PM.

    2. Member M90SyncroRallyeGolf's Avatar
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      05-26-2010 10:25 AM #2
      This will be my next year upgrade !!!
      M90Syncro

      Pumping 1.5 bars ...

    3. 05-30-2010 05:56 AM #3
      [IMG] Uploaded with ImageShack.us[/IMG]

    4. Member Vegard's Avatar
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      05-30-2010 06:12 AM #4
      Where can the adapters be bought?

    5. 06-02-2010 07:12 PM #5
      i can make more on my cnc mill

      spent yesterday doing these




      so have a few sets
      Last edited by bam20v; 06-06-2010 at 06:13 AM. Reason: adding pic

    6. 06-06-2010 06:39 AM #6
      Last edited by GOLF1398; 06-07-2010 at 05:37 AM.

    7. Member nypassat16v's Avatar
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      06-10-2010 12:39 PM #7
      Quote Originally Posted by bam20v View Post
      i can make more on my cnc mill

      spent yesterday doing these




      so have a few sets
      How much for the brackets?

    8. Moderator yellowslc's Avatar
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      06-10-2010 01:56 PM #8
      Thanks for keeping this option available. My machinist and I are simply too busy to keep these available.

      I have two badass sets of R32 rear calipers if anyone is in need.

      Ceramic coated bodies (red)
      Teflon coated bores
      Ceramic coated pistons
      Urethane coated e brake brackets.

    9. 06-10-2010 06:40 PM #9
      Quote Originally Posted by yellowslc View Post
      Thanks for keeping this option available. My machinist and I are simply too busy to keep these available.

      I have two badass sets of R32 rear calipers if anyone is in need.

      Ceramic coated bodies (red)
      Teflon coated bores
      Ceramic coated pistons
      Urethane coated e brake brackets.


      no worries

      i in the process of making the mk2 rallye rear beam mounts


      from billet these should be done in next couple of weeks waiting for the metals blanks to arrive

      cheers

    10. 06-10-2010 06:53 PM #10
      hi had few people ask on shipping price

      i have a limited amount

      124.00 USD shipped by DHL
      99.42 EUROS shipped by FEDEX

      i am not trade just made a few set to cover cost of R&D and Materials


      these are a direct fit on to the passat syncro trailing arms
      they seem to have a more machine flat edge
      will post a pic tomorrow

      the golf syncro (which came with drums)
      most trailing arms i have taken apart to use need a small amount of work to fit as
      most of the area these fit to is rusty with age no a big job at all
      will post a pic tomorrow
      the pictures above are golf syncro arms which had drums so they do fit

    11. 06-10-2010 06:54 PM #11
      Quote Originally Posted by GOLF1398 View Post
      hi what size are they ?

      and are they front ?

    12. 06-11-2010 01:58 PM #12
      280mm,these are front disks...fitted back.

    13. Junior Member
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      1995 Golf Variant Vr6 Syncro
      06-15-2010 09:59 AM #13
      I got Vr6 syncro, original 239x9mm brakes. Did buy Audi TT quattro 256x20 rearbrakes(calibers, carriers,pads and dics´s).
      If i want to upgrade to 280mm, i need those adapters, 280mm Vr6 front disc´s?

    14. 06-15-2010 06:37 PM #14
      Quote Originally Posted by SlantSix View Post
      I got Vr6 syncro, original 239x9mm brakes. Did buy Audi TT quattro 256x20 rearbrakes(calibers, carriers,pads and dics´s).
      If i want to upgrade to 280mm, i need those adapters, 280mm Vr6 front disc´s?

      hi yes you do audi tt quattro rear carriers and calipers ,pads and early vr6 front disks 280mm x 20mm

      5 x100

      i have couple of pairs left

      thanks
      Last edited by bam20v; 06-15-2010 at 06:49 PM.

    15. 06-15-2010 07:32 PM #15
      hi all here a few pics to see the golf mk2/rallye vs the mk3 golf/passat arms

      the mk2 golf arms all that i have seem to be the 68.4mm rear wheel bearings
      as below and need small amount of work to get the adapters to fit nice

      edge needs small amount of grinding depending on how rusty the edge is
      some i have had fit without work

      and with adapter fitted


      the arms with the cutouts all seem to be 68.4mm
      ----------------------------------------------------------------------------------------------------------------

      the passat g60/vr6 syncro and mk3 golf vr6/tdi syncro

      all have soild bearing carriers (no cutouts) and use the more common 72mm wheel bearing
      also have a lot nicer edge to accept the brake adapter


      and adapter fitted


    16. 07-22-2010 06:50 AM #16
      Hi,

      Am I correct in assuming this adapter will fit all VAG mk4 chassis? i.e. Seat Leon Tdi or Golf Tdi? Are the adapters still available?

      Thanks!

    17. Member weejunGL's Avatar
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      07-26-2010 04:21 PM #17
      well, not to f|_|ck up this thread, but, if i want to go with 256x20mm rear brakes on my scynro, all i need is calipers and carriers (and ofcourse pads and discs) along with a new back brakehose?

      currently having the stock 239x10mm rear on my Golf

    18. 07-26-2010 06:05 PM #18
      weejunGL - I think you are correct.

      Tried contacting bam20v but doesnt seem to be on much. Would really like to get this 280mm conversion.

    19. 07-27-2010 05:44 PM #19
      hi all been real busy im building a 7mtr by 7mtr workshop at back of my house as i have out grown old one

      i have sorted this thread so if people post now i will emailed and be able to reply asap

      to answer questions etc

      these brackets are to use on the syncro family of trailing arms

      eg: mk2 golf syncro
      mk2 golf rallye
      mk3 passat syncro
      mk3 golf syncro

      as to upgrading a syncro to 256mm discs (rear) i have not looked at this as i just went from drums to 239mm to 280mm rear discs

      but i doubt the 256mm carriers would fit ?

      i have changed a syncro from drums to 239mm x 10mm rear discs using the std vw rear rallye OEM parts

      this lead me to fitting the 280mm discs as 239mm just looked stupid in my wheels compared to the front discs im running .


      as to question about will adapter will fit all VAG mk4 chassis? i.e. Seat Leon Tdi or Golf Tdi

      i dont understand question do you want to fit 280mm rear discs on say a mk4 golf ?


      cheers speak soon

    20. 08-01-2010 09:51 AM #20
      Quote Originally Posted by bam20v View Post
      pardon my ignorance but what difference would it make at the end if because the brake pad only covers part of the surface of the disk

    21. Member weejunGL's Avatar
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      08-01-2010 04:17 PM #21
      Quote Originally Posted by mafosta View Post
      pardon my ignorance but what difference would it make at the end if because the brake pad only covers part of the surface of the disk
      you will have less momentum that needs to be stopped when using larger disc

      so it will be noticable

    22. Senior Member TBT-Syncro's Avatar
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      08-02-2010 02:07 AM #22
      Quote Originally Posted by weejunGL View Post
      you will have less momentum that needs to be stopped when using larger disc

      so it will be noticable
      you have MORE momentum with a larger disc, but you have more mechanical leverage.

      rear brake upgrades are generally a waste of money/time, once you go beyond vented rotors and lightweight calipers. i'm installing a manual bias adjuster on my car, as stock mk4 calipers are giving too much rear bias, and i need to dial it down (rear end coming loose when breaking from 200 km/h is not fun)

    23. Member weejunGL's Avatar
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      08-02-2010 11:29 AM #23
      Quote Originally Posted by TBT-Syncro View Post
      you have MORE momentum with a larger disc, but you have more mechanical leverage.

      rear brake upgrades are generally a waste of money/time, once you go beyond vented rotors and lightweight calipers. i'm installing a manual bias adjuster on my car, as stock mk4 calipers are giving too much rear bias, and i need to dial it down (rear end coming loose when breaking from 200 km/h is not fun)


      hah, there you go i had it the other way around

    24. 08-03-2010 12:07 AM #24
      Quote Originally Posted by TBT-Syncro View Post
      rear brake upgrades are generally a waste of money/time,
      This is what I thought. More stopping power at the back will be like pulling the handbrake at 120miles per hour

    25. Member rollercoasterracer's Avatar
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      08-09-2010 07:30 PM #25
      Has anyone found a 4x100 rotor that would work with this setup? My calipers are shot, and I need new pads/rotors anyways, figured I'd upgrade somehow.. but like some other guys said, I'm not looking for major braking in the rear, mainly looking for stuff that will be easier to get parts for later on (I'm in Alaska, and shipping is a lot of $$).

    26. Member rollercoasterracer's Avatar
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      08-10-2010 04:40 AM #26
      And if people are doing this for the rear... what front upgrades are you running, since the rear's will be about the same size and all..

    27. Member copdodger's Avatar
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      08-18-2010 05:35 PM #27
      I have a 280mm x 22 mm vented brake setup on my corrado but now I cant find replacement rotors.
      I've been running this setup for years using mkIV calipers, new hub etc. But cant seem to find anyone running a simmilar setup or replacement parts.

    28. 09-02-2010 01:12 PM #28
      HI,
      I just got 19inch wheels on my 2001 Audi 225hp TT Quattro and the 256x20mm rear rotors look minuscule.
      Will these adapters allow me to bolt up 280mm rotors from early VR6's fronts just for looks?
      What exact car year and models are the 280mm fronts from?
      What backing plates will work?
      Are these still available?
      Thanks

    29. Member rollercoasterracer's Avatar
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      10-25-2010 12:03 AM #29
      Finally got them on


      Used ECS's SS coated brake lines. Wheels were hitting though (16x7 et20)



      luckily, was able to get ahold of some 5lug adapters right away, so improvised to get it rolling... waiting for the real spacers currently (had to go out .5" and it was still barely scraping the barrel).
      FS: 1998 F150 SuperCab 4x4 4.6L V8
      WTT/FS: 17x7 Team Dynamic Racing ProRace 1 wheels
      (search my name)

    30. 10-27-2010 07:39 AM #30
      I dont like the idea of redrilling discs. Why didnt you use the G60 280mm front 4 stud discs?

    31. Junior Member turbowahnstefan's Avatar
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      10-27-2010 10:39 AM #31
      Hey, the reason not to use G60 discs is that they have another offset-therefore you need another or highly modified adaptor.I'm desperately waiting for updates on your rallye...

    32. 10-27-2010 06:22 PM #32
      Oh right. Are you using a 280mm or a 288mm? I did all my mock up with a 280mm 4 stud disc. Then found a pair of 280mm 5 stud.

    33. Junior Member turbowahnstefan's Avatar
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      10-28-2010 03:11 AM #33
      I use 280mm ones-old vr6 and 280mm G60 on two different cars and have made adaptors for both. 288mm 5stud would need quite another adaptor-we tried that, too but didn't find an acceptable solution, yet. We are on it...;-)

    34. 10-28-2010 06:50 AM #34
      Oh are you making these aswell?

      They defo look like 288mm discs in the pic above or different calipers to mine. My pad is less than 10mm from the inner edge of the disc.



      Should have an update on my rallye after the weekend.

    35. Junior Member turbowahnstefan's Avatar
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      10-29-2010 04:34 AM #35
      I bought a set and thought it could be done better and then I thought about 4 lugs and chamber adjustments. Firstly only for my cars, but my cnc men say: one is none-lets make ten-and thats what we did:http://wp.me/pPqN9-1z


      I took such a big pic because then you can see the quality of the work...;-)

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