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Thread: 312mm Brakes on a 4 Stud

  1. #11
    Super Moderator Kevin Bacon's Avatar
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    Re: 312mm Brakes on a 4 Stud

    Quote Originally Posted by Supercharged
    Quote Originally Posted by kevhaywire

    So if I was to undo a hub nut and jack it up, can you tell if the bearing's fubar'd without taking it all apart?
    These were schitty old FAG bearings from GSF Kev, new VAG ones are still fine...

    ... yeah basically, mine was fine as far as an 'MOT' check went - no detectable play until I undid the hub nut and the hub itself just wobbled about, both sides were shot to bits!

    If you are going to do yours again I would get 2 spare hub carriers, have them blasted like I did above, get new brearings pressed in then paint and you could also fit the tie rod flip kit while you're at it.
    Ah, the good old FAG, PMSL!

    Yeah that's a good idea with the hub carriers, exactly what i was thinking. How is the tie rod flip working? A good reduction in bump steer?
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  2. #12
    CF-oholic! Toad's Avatar
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    Re: 312mm Brakes on a 4 Stud

    Quote Originally Posted by kevhaywire
    Quote Originally Posted by Supercharged
    Quote Originally Posted by kevhaywire

    So if I was to undo a hub nut and jack it up, can you tell if the bearing's fubar'd without taking it all apart?
    These were schitty old FAG bearings from GSF Kev, new VAG ones are still fine...

    ... yeah basically, mine was fine as far as an 'MOT' check went - no detectable play until I undid the hub nut and the hub itself just wobbled about, both sides were shot to bits!

    If you are going to do yours again I would get 2 spare hub carriers, have them blasted like I did above, get new brearings pressed in then paint and you could also fit the tie rod flip kit while you're at it.
    Ah, the good old FAG, PMSL!

    Yeah that's a good idea with the hub carriers, exactly what i was thinking. How is the tie rod flip working? A good reduction in bump steer?
    I might have a pair I could give you to get blasted, painted and fitted. Could throw them in the boot for when we meet up for our little trip away.

  3. #13
    Super Moderator Kevin Bacon's Avatar
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    Re: 312mm Brakes on a 4 Stud

    Top man, sounds like a plan
    Did have: 94 Corrado R32
    Now have: 2004 Golf R32

  4. #14
    CF Nutter Slimg60's Avatar
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    Re: 312mm Brakes on a 4 Stud

    So are the only 2 mods to shave 3/4mm off the carrier and drill a hole in the splash guard?
    What hoses are needed for these? custom or off the shelf?
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  5. #15
    Super Moderator Supercharged's Avatar
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    Re: 312mm Brakes on a 4 Stud

    Quote Originally Posted by Slimg60
    So are the only 2 mods to shave 3/4mm off the carrier and drill a hole in the splash guard?
    What hoses are needed for these? custom or off the shelf?
    Yeah basically - it's tricky getting the amount you need to remove correct - I gave the machine shop the carriers / discs and a spare hub but still had to file away slightly at the part of the carrier the disc runs through for it to clear - I had issues with them rubbing as the brakes heated up.

    All good now though, been on over a year and I've done about 18k miles - pads around half worn and discs still look new!

    Hoses - same as you would on a VR using 288's / 312's, either standard late VR6 Golf or Goodridge which I used...


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  6. #16
    CF Nutter Slimg60's Avatar
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    Re: 312mm Brakes on a 4 Stud

    excellent, is there a noticable difference in stopping power?
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  7. #17
    Super Moderator Supercharged's Avatar
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    Re: 312mm Brakes on a 4 Stud

    Quote Originally Posted by Slimg60
    excellent, is there a noticable difference in stopping power?
    Yeah although I had a pretty good 280mm setup with Black diamond discs and DS2500's and the 312's are just standard VAG so maybe not as much but is still a lot better and more stable at higher speeds - braking from 80 feels much more positive. Less chance of fade too as the bad contact area is around 50% more - will probably fit uprated pads next year too.


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  8. #18
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    Re: 312mm Brakes on a 4 Stud

    I'm confused as to how that camber guage works. Did you have to make your wishbone fully parallel to the floor and then measure camber at 2deg or whatever it is?

    also, isn't that brake shield on the wrong way round? I always thought they wrapped around the edge of the disc, not curved away from them.

    good thread though been meaning to ask you about the TDI swap! nice colour car too

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  9. #19
    Super Moderator Supercharged's Avatar
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    Re: 312mm Brakes on a 4 Stud

    Hi mate - All I'm doing with that gauge is sticking an axle stand under the wishbone so it doesn't move and setting it to O (you adjust it) then making sure it's at zero again when doing the suspension bolts back up... it's not perfect but gets it very close - I'd still advise a full suspension setup though after any work like that, it's well worth it and the car has driven perfectly ever since!

    Brake sheilds correct as it's a MK4 one - the idea I think is that they protect the brakes from a CV boot fairlure plus water etc...


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  10. #20
    CF Nutter Slimg60's Avatar
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    Is it possible to measure the hoses for me please?
    I've got the parts to do this but found somewhere to get the hoses made up cheaper
    Cheers
    Slim
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