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S3 rear calipers

Discussion in 'A3/S3 Forum (8L Chassis)' started by Pontio, Sep 20, 2005.

  1. Pontio
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    Pontio Member

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    [Sep 20, 2005]
    Hi guys, looking for a pair of S3 rear calipers. Does any1 have any there looking to get rid of? would they look the same as my 1.8tq ones just wider?
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  3. jojo
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    jojo Looking for Boost! Staff Member Moderator

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    [Sep 20, 2005]
    S3 rears are for vented disks, I would have thought they were the same on a SportQuattro?
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  4. Pontio
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    Pontio Member

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    [Sep 20, 2005]
    no, i have solids on the rear. thats why i want the s3 ones. do you know if they look the similar?
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  5. jojo
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    jojo Looking for Boost! Staff Member Moderator

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    [Sep 20, 2005]
    No idea bud, but I think the disk diameter is the same, so S3/TT calipers are probably just wider?
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  6. evotista
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    evotista Member

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    [Sep 20, 2005]
    Pontio,

    Heres some info for you

    1.8TQs have rear calipers and associated caliper carriers with a 41mm piston diameter acting on a 239mm x 9mm thick solid disc

    S3s have 38mm piston diameter rear caliper (with i presume) a different caliper carrier acting on 256 x 22mm ventilated discs

    If you want to upgrade to S3 rear setup then you can just source the 38mm calipers and carriers and its a bolt on solution. However, part of me wonders whether an S3 rear caliper CARRIER would work in conjunction with the existing 41mm diameter caliper of a 1.8TQ, while using the associated 256mm ventilated discs. My rudimentary knowledge of brakes suggests that even though its only 3mm difference and the rears do 20% of the braking at best...surely its better(and cheaper) to use the larger diameter piston caliper.

    Anyoneelse care to comment.
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  7. jojo
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    jojo Looking for Boost! Staff Member Moderator

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    [Sep 20, 2005]
    He needs the S3 rear calipers for the ECS stage1 disks he's just bought /ubbthreads/images/graemlins/beerchug.gif
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  8. Pontio
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    Pontio Member

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    [Sep 20, 2005]
    jojo has been doing some research.lol yep i have ecs front and rear and thats why i need the other calipers.
    How do you know anyway? lol
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  9. jojo
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    jojo Looking for Boost! Staff Member Moderator

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    [Sep 20, 2005]
    [ QUOTE ]
    jojo has been doing some research.lol yep i have ecs front and rear and thats why i need the other calipers.
    How do you know anyway? lol

    [/ QUOTE ]

    I have been monitoring Ebay - big brother is watching YOU! /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/tongue.gif
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