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Anyone have a front rotor laying around?

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    Anyone have a front rotor laying around?

    If so, can you measure the OD of the rotor hat?

    With calipers is prefered or an accurate metric ruler/scale.
    I like to build things with metal n stuff

    #2
    I have an aftermarket 2 piece rotor on my desk... that's probably not going to help you.

    1987 325is: 495whp/400ft-lb
    UPDATED 03/12/10!: RB26DETT Swapped E30

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      #3
      Hmmm....possibly. If you can measure it and let me know I would appreciate it. Im modeling some special wheel adapters right no and forgot to measure the OD of the rotors this morning before I left for work lol.

      I can tell by the diameter if its close to what I need or not. If you dont mind that is! :D
      I like to build things with metal n stuff

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        #4
        I have a rotor sitting in my toolbox at my work. I can take some measurments for you. Im just not 100 percent sure what you need measured.


        Let me know
        Need a performance chip for you BMW? Shoot me a PM and I'll get you taken care of!!
        Taylor- Follow me on Instagram @e30_fiend


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          #5
          There is the friction surface and then there is the hat. The hat is the portion of the rotor that goes over the spindle hub (where the lug bolts go through). I need the outside diameter of that, not the inside.
          I like to build things with metal n stuff

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            #6
            Wait, are you AT work?

            I can always measure mine at home, I just didnt want to wait till I went home at 6pm to measure it.
            I like to build things with metal n stuff

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              #7

              1987 325is: 495whp/400ft-lb
              UPDATED 03/12/10!: RB26DETT Swapped E30

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                #8
                There you go. That's the massive front rotor

                1987 325is: 495whp/400ft-lb
                UPDATED 03/12/10!: RB26DETT Swapped E30

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                  #9
                  check realOEM it tells you. From memory it's 258mm


                  never mind you sad "hat", I'll get it for you in a sec.

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                    #10
                    Which is coincidentally for sale... :)

                    1987 325is: 495whp/400ft-lb
                    UPDATED 03/12/10!: RB26DETT Swapped E30

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                      #11
                      it's 148mm measured from above

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                        #12
                        Originally posted by newman View Post
                        Which is coincidentally for sale... :)
                        Why buy it, I have the print now!!! :D

                        Ikid Ikid

                        Nice to know Im not the only engineer.....or designer for that matter on here!

                        Id share what Im designing but I dont think anyone here would remotely benefit from what Im making.



                        Originally posted by Aptyp View Post
                        it's 148mm measured from above

                        148 sounds right to me. I eyeballed it on my drawing at 150mm so looks like we're right on.



                        Thanks to the both of you!

                        Brian
                        I like to build things with metal n stuff

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                          #13
                          you're welcome

                          Originally posted by StreuB1 View Post
                          I dont think anyone here would remotely benefit from what Im making.
                          That doesn't mean I won't think it's cool!

                          1987 325is: 495whp/400ft-lb
                          UPDATED 03/12/10!: RB26DETT Swapped E30

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