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Thread: s4 brakes

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    s4 brakes

    Hello all,

    Im thinking about up grading my brakes on my 1.9tdi se 1996 audi a4 avant.
    Iv come across a set of s4 brakes, can anybody tell me what diametre s4 dics are and there thickness?
    would i be able to use my calipers with the s4 caliper brakets or are the dimentions slightly different.

    any advice welcome thanks for your time

    Andy

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  3. #2
    Markey's Avatar
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    Don't think the carriers will fit as the S4 hubs are different.
    A4 Avant project now started ! see this thread ! http://www.audi-sport.net/vb/a4-s4-forum-b5-chassis/43296-bit-project-going.html
    If you think my post had a usefull purpose please say thanks

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    The discs are 321mm diameter, 30mm thick. I believe, although don't hold me to that!
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    Quote Originally Posted by stapo69 View Post
    The discs are 321mm diameter, 30mm thick. I believe, although don't hold me to that!

    Yup, got a full set in the garage.

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    I have a pair of standard 1999 S4 calipers for sale now if you get stuck

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    s4 caliper brackets not compatible with your caliper.

    s4 calipers and brackets won't fit to your hubs.

    s4 hubs and bearings, may not be compatible with your driveshafts.

    so probably best upgrade is 312mm discs from 2002 a4 3.0Q

    312mm caliper brackets from vagparts/seat leon/audi TT/Golf to mount your calipers on, i think (this works for 1.8T, i think calipers maybe the same)
    1998 A4 1.8T Sport - For Saturdays
    2003 VW Golf MKIV R32 - For Sundays
    2000 Peugeot 406 HDi - For when it's raining
    1996 Kawasaki ZX7R - For when I'm late for work!

    Mods- Forge Dump Valve, The Engine Shop Power Plus based Engine (Low Comp. Forged pistons, Arrow H-Section Rods, Newman fast road cams, polished & ported head), 19" wheels, B&M Short Shifter, Greddy Turbo Timer, RS4 Grill, Weitec GTN coilovers, HKS modified air filter, Autobahn88 FMIC, ChippedUK custom map. Some Turbo mods ongoing.

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    docurley's Avatar
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    They wont fit full stop.
    Last edited by docurley; 1st April 2008 at 21:20.
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    Thanks for all your help guys,
    im going to order the 312mm carriers and get some 312mm discs from the 2002 audi at 3.0 Q

    Regards
    Andy

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    just a quick up date,

    iv done some research into the sizes of various Audi discs.

    the current sizes are as follows (audi a4 1996 1.9 tdi se)

    O/D 288
    Thickness 25
    Height 46
    Front Bore 68
    Rear Bore 135
    PCD 112

    The only 312mm discs that come close to fitting have the following sizes

    O/D 312
    Thickness 25
    Height 46
    Front Bore 68
    Rear Bore 158 Different
    PCD 114.3 Diffrerent


    However im just going to machine a rear spiget ring for the discs with a tight tolerance and uses a press to slide them in.
    Then ill use a rotary index table to re PCD the discs to 112mm.

    That is unless anybody knows an easyer way!

    Thanks

  11. #10
    macca's Avatar
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    but the b6 a4 3.0 quattro discs have a pcd of 112mm, not sure about the height, but plenty people have fitted them.
    1998 A4 1.8T Sport - For Saturdays
    2003 VW Golf MKIV R32 - For Sundays
    2000 Peugeot 406 HDi - For when it's raining
    1996 Kawasaki ZX7R - For when I'm late for work!

    Mods- Forge Dump Valve, The Engine Shop Power Plus based Engine (Low Comp. Forged pistons, Arrow H-Section Rods, Newman fast road cams, polished & ported head), 19" wheels, B&M Short Shifter, Greddy Turbo Timer, RS4 Grill, Weitec GTN coilovers, HKS modified air filter, Autobahn88 FMIC, ChippedUK custom map. Some Turbo mods ongoing.

 

 

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