Audizine - An Automotive Enthusiast Community

Results 1 to 39 of 39
  1. #1
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Going crazy over finding 350mm/325mm rotors

    Guest-only advertisement. Register or Log In now!
    Well I've just about had it trying to find a set of rotors that will fit the JHM Porsche Cayenne BBK without spending 1200 on theirs. Gone through 3 different companies and sets of rotors with no success. Last one from Brake performance.com was close but the offset was way different.

    Sent from my Nexus 6P using Audizine mobile app

  2. #2
    Senior Member Three Rings
    Join Date
    Feb 21 2012
    AZ Member #
    88576
    My Garage
    MB S55 - (607hp/671tq), Suzuki GSXR 1000
    Location
    Chico/CA

    (18z) Mercedes Ml55 rotors = 350mm, center needs to be bored out a bit (66mm to 68mm, if memory serves me correct). I got my rotors for about $75 each. I believe the 17z uses the c32 rotors and the lug holes have to be bores out a bit. There is a huge thread in the general section that has a lot of useful info about the 17z/18z conversion.
    2000 Laser Red Stage III+

  3. #3
    Established Member Two Rings
    Join Date
    Sep 22 2015
    AZ Member #
    357215
    Location
    South of Atlanta

    How do these dimensions stack up against your needs?

    Dia - 345
    Thk - 32
    Hgt - 51
    Hub - 67
    Blt - 15.3

  4. #4
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Pretty close I'm just unsure on the offset but that seems close. Thanks I'll check out the 17z/18z conversion

    Sent from my Nexus 6P using Audizine mobile app

  5. #5
    Veteran Member Four Rings Tiluleshpingen's Avatar
    Join Date
    Nov 14 2006
    AZ Member #
    13408
    My Garage
    97 AS4 ,08 A5 MKVI Jetta
    Location
    Land of the Eagles

    Isn't jhm 750 for the pair?
    GIAC-X, STASIS TS,VAST,034 MS

  6. #6
    Established Member Two Rings
    Join Date
    Sep 22 2015
    AZ Member #
    357215
    Location
    South of Atlanta

    Quote Originally Posted by Jackfults View Post
    Pretty close I'm just unsure on the offset but that seems close. Thanks I'll check out the 17z/18z conversion
    Using this info
    http://forums.quattroworld.com/s4/msgs/190346.phtml
    It seems that should be a good fit.

    I have a set of New EBC slotted/coated rotors that have those dimensions for $168 (shipped 48 states) if you're interested.

    Thanks

  7. #7
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Are the 6 piston Cayenne Calipers 17 or 18z?

    Sent from my Nexus 6P using Audizine mobile app

  8. #8
    Established Member Two Rings
    Join Date
    Sep 22 2015
    AZ Member #
    357215
    Location
    South of Atlanta

    Depending on the trim level, the car would have had either 330MM front rotors (17z) or 350mm front rotors (18z). Thru my research, it seemed guys would run 18z calipers with 17z pads to allow use of 345mm front rotors with no over hanging pad.

    I've also heard talk of 19z??, but that just adds to the confusion.

  9. #9
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Yea I've been struggling haha. Guess I have the 18z

    Sent from my Nexus 6P using Audizine mobile app

  10. #10
    Established Member Two Rings
    Join Date
    Sep 22 2015
    AZ Member #
    357215
    Location
    South of Atlanta

    Sorry, should have mentioned, it should be clearly marked on the caliper.

    For example


    I have seen cases where the original manufacturer castings were ground off, but that's usually on refurbished ones, where the company doing the refurb is attempting to remove the "OE" markings. Had a set of Audi S8/D2 where the marking were removed from 1 caliper & carrier, but not the other??

  11. #11
    Veteran Member Three Rings rage385's Avatar
    Join Date
    Sep 06 2012
    AZ Member #
    99989
    My Garage
    2001.5 Audi S4, 2009 Daytona 675
    Location
    United States
    Items for Sale

    Go to rotorlab.com. I have never bought something from them, but there rotors will work with 18z

    Sent from my SM-T710 using Tapatalk

  12. #12
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Quote Originally Posted by rage385 View Post
    Go to rotorlab.com. I have never bought something from them, but there rotors will work with 18z

    Sent from my SM-T710 using Tapatalk
    Thank you for the tip I'm looking now and it seems like THE best option for people running Porsche BBK. Will update when the rotors from them arrive.

    Sent from my Nexus 6P using Audizine mobile app

  13. #13
    Established Member Two Rings
    Join Date
    Jan 07 2013
    AZ Member #
    107032
    My Garage
    2001.5 S4 Avant. 1997 A6 Base, 1997 A6 Avant, 2014 Jetta Hybrid, Ford F250
    Location
    California
    Items for Sale




    Sent from my iPhone using Audizine

  14. #14
    Established Member Two Rings
    Join Date
    Jan 07 2013
    AZ Member #
    107032
    My Garage
    2001.5 S4 Avant. 1997 A6 Base, 1997 A6 Avant, 2014 Jetta Hybrid, Ford F250
    Location
    California
    Items for Sale

    Low cost but not the light weight solution. Needs to open up the center bore with a flapper wheel on a drill. Be sure to grind your steering knuckles before fitting the center bores to ensure fitment.


    Sent from my iPhone using Audizine

  15. #15
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Update: I Have been talking with Rob from Rotorlab and he has been incredibly informative about the issues with rotor fitment on B5 S4s utilizing JHMs 18Z setup. I will be getting them in about a month since I am a few orders behind.

    Sent from my Nexus 6P using Audizine mobile app

  16. #16
    Veteran Member Four Rings Cgoon009's Avatar
    Join Date
    Mar 02 2013
    AZ Member #
    110578
    My Garage
    I have a garage? Do tell...
    Location
    DC

    I didn't want to have to open up the center bore on the rotors so I used B7 S4 rotors without problem. I shaved the retaining pegs on the calipers down about 1/16" to get good clearance. Had no problems so far. I have 18Z calipers
    Eurosport Tuning at it's Finest

  17. #17
    Veteran Member Four Rings Tiluleshpingen's Avatar
    Join Date
    Nov 14 2006
    AZ Member #
    13408
    My Garage
    97 AS4 ,08 A5 MKVI Jetta
    Location
    Land of the Eagles

    Quote Originally Posted by Jackfults View Post
    Update: I Have been talking with Rob from Rotorlab and he has been incredibly informative about the issues with rotor fitment on B5 S4s utilizing JHMs 18Z setup. I will be getting them in about a month since I am a few orders behind.

    Sent from my Nexus 6P using Audizine mobile app
    there is problems with using jhm 350 18z setup?
    GIAC-X, STASIS TS,VAST,034 MS

  18. #18
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Quote Originally Posted by Tiluleshpingen View Post
    there is problems with using jhm 350 18z setup?
    No, the only problem is finding rotors if you don't want to pay 1200 for a new set.

    Sent from my Nexus 6P using Audizine mobile app

  19. #19
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Sorry that was very badly worded. JHM fitment with their setup is great. Trying to find rotors from a different source is where it starts to get tricky.

    Sent from my Nexus 6P using Audizine mobile app

  20. #20
    Veteran Member Four Rings LINDW4LL's Avatar
    Join Date
    Dec 10 2011
    AZ Member #
    85071
    My Garage
    Stage 3 S4, E46 M3
    Location
    WI ✈ NC
    Items for Sale

    Quote Originally Posted by Jackfults View Post
    No, the only problem is finding rotors if you don't want to pay 1200 for a new set.

    Sent from my Nexus 6P using Audizine mobile app
    To be clear, the best off-the-shelf solution for 18Z are ML55 AMG rotors. The offset is perfect, and they only require opening the center bore by 1mm.

    Furthermore, JHM's 18Z rotors aren't $1,200.
    -Hayden


  21. #21
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Look them up on their site. I see 725 for the front set. 695 on the rears. Says bbk kit but doesn't include calipers just brackets.

    Sent from my Nexus 6P using Audizine mobile app

  22. #22
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Looking at 350 mm fronts and 325 rears on the site.

    Sent from my Nexus 6P using Audizine mobile app

  23. #23
    Veteran Member Four Rings LINDW4LL's Avatar
    Join Date
    Dec 10 2011
    AZ Member #
    85071
    My Garage
    Stage 3 S4, E46 M3
    Location
    WI ✈ NC
    Items for Sale

    Quote Originally Posted by Jackfults View Post
    Looking at 350 mm fronts and 325 rears on the site.

    Sent from my Nexus 6P using Audizine mobile app
    I understand what you mean now. The rear is not a "Cayenne" BBK so I was confused as to what you meant. But yes, that rear 325mm rotor/kit seems to be proprietary to JHM so finding an appropriate rear rotor elsewhere may be very tough.
    -Hayden


  24. #24
    Established Member Two Rings Lanorg's Avatar
    Join Date
    Apr 22 2013
    AZ Member #
    113795
    My Garage
    1997 1.9 TDI Jeep TJ
    Location
    Toronto
    Items for Sale

    I'm running ML55 rotors that were opened up 1mm. They have worked quite well and I don't experience fade on a small track.

    Just wondering what the weight penalty is with rotorlab.com rotors. Also, the benz rotors seem to have cooling fins in the same direction (mine are anyway), is this standard or do I have two rights/lefts? Was wondering if this is a major concern or not.
    B5

  25. #25
    Established Member Two Rings
    Join Date
    Sep 22 2015
    AZ Member #
    357215
    Location
    South of Atlanta

    Quote Originally Posted by Lanorg View Post
    Also, the benz rotors seem to have cooling fins in the same direction (mine are anyway), is this standard or do I have two rights/lefts? Was wondering if this is a major concern or not.
    I think this is consistent across most rotors nowadays. I've even seen dimpled/slotted/grooved rotors where the vanes inside aren't R/L specific.

  26. #26
    Active Member One Ring
    Join Date
    Oct 09 2011
    AZ Member #
    82322
    Location
    SF

    Don't really understand what you're trying to achieve but from what I gather you're trying source "big brake rotors" for the front that's compatible with 18z and rear big brake "kit" to balance it out. Here's what I'd recommend.



  27. #27
    Established Member Two Rings Marchell's Avatar
    Join Date
    Jan 19 2012
    AZ Member #
    86894
    Location
    Moscow

    Try the s4 b8 rotors 345x30. They just sit as inteded but the rotor is a bit thin. Still they are very cheap.

    By the way, for the 18z owners. I also have the 18 with ml55 rotor installed and i seem to burn the rotors oftenly so they start to wobble. If i get a new pair its ok for a while but then again i have the same problem with wobbling disks.
    Any thoughts why thus happening?
    Sent from my PRO 5 using Tapatalk

  28. #28
    Veteran Member Four Rings Tiluleshpingen's Avatar
    Join Date
    Nov 14 2006
    AZ Member #
    13408
    My Garage
    97 AS4 ,08 A5 MKVI Jetta
    Location
    Land of the Eagles

    Quote Originally Posted by Marchell View Post
    Try the s4 b8 rotors 345x30. They just sit as inteded but the rotor is a bit thin. Still they are very cheap.

    By the way, for the 18z owners. I also have the 18 with ml55 rotor installed and i seem to burn the rotors oftenly so they start to wobble. If i get a new pair its ok for a while but then again i have the same problem with wobbling disks.
    Any thoughts why thus happening?
    Sent from my PRO 5 using Tapatalk
    yea since this is opened an new discussion.. can you all please post up the mileage on the rotors you all using with 18z
    GIAC-X, STASIS TS,VAST,034 MS

  29. #29
    Established Member Two Rings Marchell's Avatar
    Join Date
    Jan 19 2012
    AZ Member #
    86894
    Location
    Moscow

    10k km on 18z with ml55 345x32 zimmerman rotor ate ceramic pads. Twice recutted the rotors, still the same wobbling problem on a a6 c6 2.7t avant

    Sent from my PRO 5 using Tapatalk

  30. #30
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    I well my order is in with Rotorlab but I'm a few orders behind so it will take awhile. Fresh 18z BBK with any color powder coating, front 345, rear 325, ebrake calipers for rear rotors also powder coated. All necessary hardware for complete install minus brake lines and brake pads are included for a total of 975 before shipping. If you send them your old calipers you will get 300 refunded or sell them yourself for more. I will post in about a month with details of install and how it all fits.

    Sent from my Nexus 6P using Audizine mobile app

  31. #31
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    The BBK kit is almost here after a long wait I will update when it arrives hopefully next week. Due to a supplier error the Rear Calipers will be a week late.

    Sent from my Nexus 6P using Audizine mobile app

  32. #32
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Alright here is the long awaited BBK from Rotorlab. They modify the Calipers and have new mounting hardware to allow you to run 350mm fronts and 325mm rear rotors. The rotors from Rotorlab are only 400 instead of 1200 from JHM. No other mods are needed once you receive them. Next week the rear kit will be in.

    Sent from my Nexus 6P using Audizine mobile app

  33. #33
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado



    Sent from my Nexus 6P using Audizine mobile app

  34. #34
    Established Member Two Rings aFOURstance's Avatar
    Join Date
    Jan 30 2011
    AZ Member #
    70239
    My Garage
    '04 DBP R32 Turbo, '01 Nogaro S4 Stg 3 & Bagged
    Location
    SPRINGFIELD, VA

    Post some pics of them mounted on the car


    Sent from my iPhone using Tapatalk
    2001 A4 1.8T | 5speed | Bone stock | Santorin Blue Pearl

  35. #35
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Will do. Sorry I haven't updated anything it's been a crazy past few months. Everything mounted perfectly and I'll take pics when I get home this Monday.

    Sent from my Nexus 6P using Audizine mobile app

  36. #36
    Veteran Member Four Rings
    Join Date
    Nov 14 2013
    AZ Member #
    130116
    Location
    earth
    Items for Sale

    You seem to have things mistaken. JHMís rotors are 2 piece lightweight rotors. These are always more expensive than regular one piece rotors. As already stated in this thread you can use ml55 rotors for $75 a piece. A lot cheaper than $400.

    You arenít getting a 2 piece rotor for $400 a set.

  37. #37
    Active Member Two Rings Jackfults's Avatar
    Join Date
    Jun 20 2017
    AZ Member #
    401435
    Location
    Durango, Colorado

    Yes I'm aware of the difference and never said the Rotorlab ones were two piece. You can see the pictures of the the front ONE piece. I did not want to buy rotors and modify them (seems that you have to bore a bit) after going through 2 different rotor sets and returning them and waiting more than a month. Again never did I say they were two piece.

    Sent from my Nexus 6P using Audizine mobile app

  38. #38
    Veteran Member Four Rings Tiluleshpingen's Avatar
    Join Date
    Nov 14 2006
    AZ Member #
    13408
    My Garage
    97 AS4 ,08 A5 MKVI Jetta
    Location
    Land of the Eagles

    please keep us posted on how they fair. and if notice any good or bad differences between stock and or other ones
    GIAC-X, STASIS TS,VAST,034 MS

  39. #39
    Established Member Three Rings canduchita's Avatar
    Join Date
    Jan 11 2017
    AZ Member #
    390488
    Location
    ypsilanti

    Quote Originally Posted by Marchell View Post
    Try the s4 b8 rotors 345x30. They just sit as inteded but the rotor is a bit thin. Still they are very cheap.

    By the way, for the 18z owners. I also have the 18 with ml55 rotor installed and i seem to burn the rotors oftenly so they start to wobble. If i get a new pair its ok for a while but then again i have the same problem with wobbling disks.
    Any thoughts why thus happening?
    Sent from my PRO 5 using Tapatalk
    I also run the ML55 rotor But one thing you have to do when running these rotors is you have to run the Z17 pad So you don't get any overhang on the braking surface from the bigger pad because the rotors are 345 mm20171217_170109.jpg20171217_170103.jpg

    Sent from my SM-N950U using Audizine mobile app



Bookmarks

Posting Permissions

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


    © 2001-2018 Audizine, Audizine.com, and Driverzines.com
    Audizine is an independently owned and operated automotive enthusiast community and news website.
    Audi and the Audi logo(s) are copyright/trademark Audi AG. Audizine is not endorsed by or affiliated with Audi AG.