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Thread: 4piston caliper upgrade for stock (11.4”) disks..

  1. 01-06-2019, 03:49 AM #1
    aamet
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    4piston caliper upgrade for stock (11.4”) disks..

    Hi guys,

    I’ve got a 72t and would like to change the calipers as the originals are welded shut by previous owner.
    I want to keep the 282mm front 290mm rear x20mm rotors as I will be keeping the 15” Fuchs.
    The piston sizes on my setup are 42mm front 27mm rear, do not know what are they belong to but they are ate calipers (probably original 2 pistons) but the original size, afaik, 38mm and 48mm front.

    Now, i will probably have to change the master cylinder, but can not find/decide which caliper to get.
    The only 4 piston i have found that can fit on 15” wheels and standard disk are wilwood 120-14700 series.
    Which have 25mm width and be can be fit in up to 309mm disks. However their piston sizes are between 31.7mm and 44.4mm, which is neither here niether there..

    Oh, long story short, what 4 piston caliper can be used with disks up to 310mmx25mm?
    Ps: I do not care much about the 3,5” spacing to clear the struts because i will already make some brackets as the wilwoods are radial not lug mount style..
    Or, I can change the rotors too, main thing is there is not much alternative that fits in 15” wheels..

    Thank you
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  2. 01-06-2019, 12:36 PM #2
    edmayo
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    Try 'Zuffenhaus" in North Carolina. Ads are posted in the Registry magazine.
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  3. 01-06-2019, 04:59 PM #3
    Jabate
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    944 Turbo Brembo 4 piston calipers will clear 15” Fuchs with appropriate adapters. VCI sells kits.
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