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Thread: G Series & F Series Diff Disc Brake Solutions

  1. #101
    Veteran Skylar's Avatar
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    Got very little room to mount from behind.


    Also, there is the factory bolt on disc brake with internal drum option I detailed earlier.

  2. #102
    Senior Member DR86FT's Avatar
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    cant wait for the r33 setup with internal drum. make copies :-D

    thanks Skylar

  3. #103
    Veteran Skylar's Avatar
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    I can cut it in half and mirror it (easy way out) or I can re-cad it for 2 R/Z chassis calipers if you want (not very hard either). The only problem is that you lose the mechanical handbrake and therefore not road legal. Thought about 1 s13 caliper and 1 r/z caliper but different thickness discs. I'll get one cut up early next week and try mounting from behind to save you doing a spacer. I'll do some measurement and see if I can switch it to rear mount like the other guy's set ups.

    Is your diff shortened or standard length?

    Also, I can just send you the dxf file (for a small fee) and you can get it laser cut yourself. My watercutter takes about a week to cut anything and I'm not happy with the watercutter (the cut has a taper on it as the water loses power the thicker it cuts, if you spec the 80mm od of the bearing, one side fits fine but the other needs some filing to fit over the bearing). Looking into getting it lasercut for the full thickness item, as in for my front brake upgrade. I can get your plates cut here if you really want me to.

  4. #104
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    deflects .19mm under a straight line force of 10000N down on the holes. will be less when I apply the force directly. 2024, 10mm thick. Weight is 636g. Factor of safety was .43 from memory.

    10mm 1020 steel. FOS of 2.0. Deflects .0692mm under same force. Weighs 1.796kg.

    Run again using 2024 but 14mm this time. FOS 0.629. deflects 0.13mm. Weighs .891kg.

    Kick it to 20mm, FOS 0.839. Deflects .095. Weighs 1.27kg

    Also, shown design is dimensioned for back mounting. Just haven't cut the flange down yet to suit. Hopefully I'll send it to the watercutter before she's cut my other stuff.

  5. #105
    Senior Member DR86FT's Avatar
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    My diff is standard length :-/

  6. #106
    Glenn ke_70's Avatar
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    right:
    test fitted up my brakes tonight.

    rn25 g series
    wrx rotors 266x18mm
    skyline calipers (duel)
    custom bracket





    ended up using 10mm steel for the bracket, they're really not that big so the extra weight would be minimal. and because the diff is alot shorter than the corolla diff's the opening on the bracket had to be larger to slip over the stepped up diametre.

  7. #107
    Glenn ke_70's Avatar
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    fit 14's under them

    8mm spacer would fit most wheels on there. my equips fit with an 8mm, but it's the bolts are the biggest issue. my starsharks with no bolts fit with only a 3mm spacer.
    so counter sunk bolts would free up alot of room

  8. #108
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    Looks good, what is the bracket worth if you make another? Or did you get it made?
    "Not all commodore drivers are wankers, but all wankers drive commodores"

  9. #109
    Glenn ke_70's Avatar
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    i cut the bracket out by hand using oxy/grinder.
    wouldn't cost much to get profile cut, i just couldn't be fucked drawing it up properly

  10. #110
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    Well certainly looks the goods.
    "Not all commodore drivers are wankers, but all wankers drive commodores"

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