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WIBIMMERS

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  3. BMW Discussion
  4. is there any local intrest in custom roll cages?

is there any local intrest in custom roll cages?

Scheduled Pinned Locked Moved BMW Discussion
18 Posts 8 Posters 0 Views 1 Watching
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  • D
    D
    deek10sn
    wrote on last edited by
    #1

    I have been tossing around the idea of offering my services building roll cages beyond friend and family. My questions to wibimmers is

    -is there a demand for custom bolt in 4pt or weld in 4/6+ cages?

    -what is a good price point for said services?

    My personal cage was built to my best interpretation of NASA/scca safety guidelines. Its just something I love to do! Here are a couple of quick pics during the fab. Please discuss!

    post-3285-0-99063300-1424926360thumb.jp

    post-3285-0-69638200-1424926382thumb.jp

    post-3285-0-42699700-1424926397thumb.jp

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    • B
      B
      Boris3
      wrote on last edited by
      #2

      Good on you, I always like seeing the welding skills of folks that do this.

      That said personal interpretation of rule sets can be an issue. NASA/SCCA cage regs for racing prep can be challenging to deal with. Safety requirements on bars versus limits on bars that tech sees as more for structural rigidity, main hoop specs and body clearances, halo, rear, and diagonal bar requirements, etc.

      Has the cage in the pictures been through the logbook tech process either by tech inspectors at track or by a NASA/SCCA certified shop, and were there any concerns raised?

      Having this experience of success in cars making it through tech and being issued NASA/SCCA logbooks would help build local interest.

      1990 325i racecar (ITS, former Spec E30); 2004 330i ZHP

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      • D
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        deek10sn
        wrote on last edited by
        #3

        Boris, it has not been certified for logbook. It my weekend warrior drift/hpde road america car. As the term of "my interpretation of the rules,". I made that statement because it has not been inspected but it was built to their spec. Maybe pursuit of more education on becoming a certified shop is the way to go. Thanks for your input!

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        • D
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          deek10sn
          wrote on last edited by
          #4

          Also for anyone reading pic 1 is not how the cage sits, the front sub assembly is dropped through the floor for purpose of welding the cage 100%

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          • AvusHatesConesA
            AvusHatesConesA
            AvusHatesCones
            wrote on last edited by
            #5

            I'll probably be buying an autopower 4 point bolt in soon. Unless you can replicate one for less using 1.75 DOM.

            http://www.ioportracing.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=60902&Category_Code=AP902

            8495739004910718468dm.jpg

            Silver Grey E46 M3

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            • D
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              deek10sn
              wrote on last edited by
              #6

              It would be tough to compete with the price of an cage that is mass produced. The above pics are 1.75 DOM

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              • AvusHatesConesA
                AvusHatesConesA
                AvusHatesCones
                wrote on last edited by
                #7

                deek10sn said:

                It would be tough to compete with the price of an cage that is mass produced. The above pics are 1.75 DOM

                That's what I was thinking

                8495739004910718468dm.jpg

                Silver Grey E46 M3

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                • CMartC
                  CMartC
                  CMart
                  wrote on last edited by
                  #8

                  Awesome cage. I don't know too much about the engineering behind different cages, but I will say I love when they are symmetrical like that.

                  Excursion 7.3
                  E30 LS1

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                  • D
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                    deek10sn
                    wrote on last edited by
                    #9

                    Thanks!!!

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                    • KaiserRollsK
                      KaiserRollsK
                      KaiserRolls
                      wrote on last edited by
                      #10

                      Awesome work!

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                      • D
                        D
                        deek10sn
                        wrote on last edited by
                        #11

                        Thanks again, there is something satisfying about making your own car parts or doing your own work on cars! I think most/all on wibimmers.can agree on that feeling!

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                        • KaiserRollsK
                          KaiserRollsK
                          KaiserRolls
                          wrote on last edited by
                          #12

                          How long does it take you to make a cage like the one you posted?

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                          • D
                            D
                            deek10sn
                            wrote on last edited by
                            #13

                            It would be hard to guess because that was my first, and with being very particular on my work....2 long weekends or so.

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                            • DrLeadFootD
                              DrLeadFootD
                              DrLeadFoot
                              wrote on last edited by
                              #14

                              I'm tossing around the idea of a mini cage in the rear that ties in the rear shock mounts and the diff mounting points for an e36 cover on my e30. Any interest from you for this job? Could you PM me an estaminet?

                              15924991875a64c599885m.jpg

                                   @DrLeadFoot

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                              • D
                                D
                                deek10sn
                                wrote on last edited by
                                #15

                                Love that idea, haven't seen that idea produced as a stand alone unit. Currently I am just trying to guage interest, if I move forward with this I will definitely let you know!

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                                • DrLeadFootD
                                  DrLeadFootD
                                  DrLeadFoot
                                  wrote on last edited by
                                  #16

                                  This is what I'm thinking but with triangling the shock towers in.

                                  Pic is of a z3.

                                  09b3d1270f1d0d72a33d65230b718967.jpg

                                  15924991875a64c599885m.jpg

                                       @DrLeadFoot

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                                  • R
                                    R
                                    Rowleym
                                    wrote on last edited by
                                    #17

                                    Yup I'm doing that for sure. Hopefully I can CNC a bracket so we can reproduce them easily. Of course small fab work no matter what. Adding in the towers would be easy too.

                                    96.jpg96.jpg96.jpg96.jpg

                                    sk8 or die

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                                    • johnprusinskiJ
                                      johnprusinskiJ
                                      johnprusinski
                                      wrote on last edited by
                                      #18

                                      Just sent you a message.

                                      photo 9009199f-248f-4e1f-97a5-f8f5080c2595zpsjlacmxoi.jpg

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