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  1. #1
    Contributing Member
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    12.26.13
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    Default Formula car roll hoops and braces- SCCA

    If I remember correctly, for cars 1500 lbs and under, both front and rear hoops were 1.375"dia. .095 wall. DOM
    Braces for hoops 1.000"dia. .080"wall DOM.
    Front hoop braces to front bulkhead.
    Rear hoop braces, for or aft , min 30° inclusive angle and down to chassis rails. .080" gussets

    I'd looked this up in the GCRs but cannot find it now that I need confirmation..
    Have the rules changed recently or have I not looked in the right section?
    All I found was page 148 "Roll Cages"

    Chris

  2. #2
    Senior Member
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    10.23.19
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    Olympia, Washington
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    Default

    GCR 9.4.5 has the Formula and SR cage rules.

    You're close, it's 1.375 x 0.080 up to 1700 lbs.

    Page 93 in the February release of the GCR

    https://www.scca.com/downloads/48599-gcr-february-2020 if you need it.

  3. #3
    Contributing Member
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    12.26.13
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    Default

    Thanks! That's what I was looking for.
    Confirms the 1"dia. X .080" wall braces.
    Back to work in the morning!

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