Results 1 to 15 of 15

Thread: VS center bore size in millimeters

  1. #1
    Ride
    VT Acclaim Wagon

    Join Date
    Oct 2008
    Posts
    675

    Default VS center bore size in millimeters

    I have just spent an hour searching this and can't find it on these forums or the web...what is the diameter of the VS road wheel center bore?

  2. #2
    Ride
    VB SL/E

    Join Date
    Dec 2008
    Posts
    1,153

    Default

    AFIK Commodore Centre hubs are 69.5mm pre VE and 66.9mm VE.
    Doesn't answer your question but hope it helps.

  3. #3
    Ride
    VT Acclaim Wagon

    Join Date
    Oct 2008
    Posts
    675

  4. #4
    Ride
    1997 VS COMMODORE,1996 GTS-R COMMODORE

    Join Date
    Feb 2011
    Location
    NEWCASTLE
    Posts
    532

  5. #5
    Ride
    VX GTS 427, VS Calais 383 A4, VS Clubsport 185 A4

    Join Date
    Aug 2004
    Location
    Melbourne
    Posts
    1,097

    Default

    DBA rotor catalogue shows the VS centre hole as being 70mm and VT-VY as being 71.5mm. Not sure if this is the same as the wheel centre bore size.

  6. #6
    Ride
    1997 VS COMMODORE,1996 GTS-R COMMODORE

    Join Date
    Feb 2011
    Location
    NEWCASTLE
    Posts
    532

    Default

    A center bore hole is the hole on the inside of the wheel which is 120mm for the VS

  7. #7
    Ride
    VB SL/E

    Join Date
    Dec 2008
    Posts
    1,153

  8. #8
    Ride
    VB SL/E

    Join Date
    Dec 2008
    Posts
    1,153

    Default

    Quote Originally Posted by EDGE3 View Post
    A center bore hole is the hole on the inside of the wheel which is 120mm for the VS
    Think about that, the stub pattern is 120mm PCD, where would the wheel studs line up with a 120mm hole in the centre of the wheel????

  9. #9
    Ride
    1997 VS COMMODORE,1996 GTS-R COMMODORE

    Join Date
    Feb 2011
    Location
    NEWCASTLE
    Posts
    532

    Default

    The center bore isnt the actual size of the bloody hole I know that,what Im saying is that halfway from one stud to halfway to the furthest stud is how you measurer the center bore which is 120mm for a 5 stud pattern.This part of the wheel is called the center bore.
    Last edited by EDGE3; 22-03-2011 at 02:09 PM.

  10. #10
    Ride
    VT Acclaim Wagon

    Join Date
    Oct 2008
    Posts
    675

    Default

    I didn't mean to start WW1V but the center bore I was referring to is the hole that sits over, (or locates on) the bearing hub. Bear gave the size as 69.5 for the VT and I believe the VS is the same except for the part the brake disc locates on which is larger. Pax. Maybe should have simplified it by saying "the hole in the center of the wheel"?

  11. #11
    Ride
    1997 VS COMMODORE,1996 GTS-R COMMODORE

    Join Date
    Feb 2011
    Location
    NEWCASTLE
    Posts
    532

    Default

    Thats ok mate we dont mind a bit of arguing on here,the way they determin the center bore is they use pythagores rule which is measured halfway from the furthest stud holes, and the hole in the wheel would then be about half of that size.I know its all technical jargon but your right its easy as just measuring the hole in the wheel,but the size of the hubs and studs are not the same in every car thats why you need to measure it to make sure your wheels can fit onto it cheers.

  12. #12
    Ride
    VB SL/E

    Join Date
    Dec 2008
    Posts
    1,153

    Default

    Quote Originally Posted by EDGE3 View Post
    The center bore isnt the actual size of the bloody hole I know that,what Im saying is that halfway from one stud to halfway to the furthest stud is how you measurer the center bore which is 120mm for a 5 stud pattern.This part of the wheel is called the center bore.
    Well you seem to have a different method to the industry because on every wheel web site they list the hole in the centre of the wheel as the centre bore.

    Don't shoot me, google it and see for your self.

  13. #13
    Ride
    1997 VS COMMODORE,1996 GTS-R COMMODORE

    Join Date
    Feb 2011
    Location
    NEWCASTLE
    Posts
    532

    Default

    If you draw the five studs like on a wheel and then draw a circle starting in the center of the stud and then threw all the five studs so you end up with a circle which is called the PITCH CIRCLE DIAMETOR,thats known as the center bore.

  14. #14
    Ride
    VR Executive SI

    Join Date
    Mar 2005
    Posts
    5

    Default

    THE PCD is NOT the same as the centre bore. They are 2 separate measurements hence why the centre bore (CB) and pitch circle diameter (PCD) are listed separately.

  15. #15
    showbags's Avatar
    showbags is offline Cheap,nasty&full o shit
    Ride
    VT Calais,F6E

    Join Date
    Dec 2009
    Location
    geelong
    Posts
    1,017

    Default

    Quote Originally Posted by VR38 View Post
    AFIK Commodore Centre hubs are 69.5mm pre VE and 66.9mm VE.
    Doesn't answer your question but hope it helps.
    Pre VE is actually 69.7mm not 69.5.

Similar Threads

  1. Replies: 0
    Last Post: 28-12-2010, 05:20 PM
  2. big bore without the drone?
    By jonboy in forum VR - VS Holden Commodore (1993 - 1997)
    Replies: 5
    Last Post: 30-05-2010, 02:05 PM
  3. buick 3800, on center or off center?
    By DryftKult in forum V6 Development And Modification
    Replies: 3
    Last Post: 03-12-2008, 06:23 PM
  4. Forum Bore 'em
    By FusionX in forum Jokes/Humour
    Replies: 9
    Last Post: 23-09-2008, 11:17 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
  •  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72