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  • Kevinxkrazy
    E30 Addict
    • Sep 2011
    • 531

    #61
    Very impressive work
    1984 Eta
    1987 Bagged
    1988 I
    1995 MX5
    1998 C70T5M
    2002 CL600

    Comment

    • dvallis
      E30 Fanatic
      • Oct 2015
      • 1474

      #62
      Chopper installed. Bolted to the bench and bench tied in at 3 corners.



      Concept for attaching tube frame to rolling chassis. 1" ID tube cut in half, welded to the 0.5" OD tube frame. Tabs will be held by bolts into the 1" OD rolling chassis tube.





      Obviously I'm not using that tube. It's just some 1" ID drop laying around.
      "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

      1987 E30 3L Turbo Stroker Das Beast
      2002 E39 M5

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      • dvallis
        E30 Fanatic
        • Oct 2015
        • 1474

        #63
        Tested some new TIG tungsten. Turned out pretty good

        "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

        1987 E30 3L Turbo Stroker Das Beast
        2002 E39 M5

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        • dvallis
          E30 Fanatic
          • Oct 2015
          • 1474

          #64
          Frame tab test







          We'll finish it off with a threaded marsin into the large tube, then bolt into that
          "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

          1987 E30 3L Turbo Stroker Das Beast
          2002 E39 M5

          Comment

          • Northern
            I like cupcakes & sh!tboxes
            • Nov 2010
            • 5224

            #65
            Originally posted by dvallis
            Tested some new TIG tungsten. Turned out pretty good

            Tungsten so good it creates a space-time paradox.
            Originally posted by priapism
            My girl don't know shit, but she bakes a mean cupcake.
            Originally posted by shameson
            Usually it's best not to know how much money you have into your e30

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            • dvallis
              E30 Fanatic
              • Oct 2015
              • 1474

              #66
              Just seeing if you guys are actually reading this :-)
              "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

              1987 E30 3L Turbo Stroker Das Beast
              2002 E39 M5

              Comment

              • dvallis
                E30 Fanatic
                • Oct 2015
                • 1474

                #67
                Tack welded tabs holding the tube frame to chassis



                Here they are before finish welding



                Drilled each tab and the frame tube with 1/8" then quarter inch. Drilled the frame tube with 7/16" bit (technically should have been 23/64" but oh well) and installed 1/4-20 RivNuts and bolts.



                It's solid. I'll do the other side then fab the final front brackets. They'll be a bit more complex given the geometry. Once that's done I'll clamp and tack weld the nose onto the quarters.
                Last edited by dvallis; 12-18-2024, 06:44 PM.
                "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

                1987 E30 3L Turbo Stroker Das Beast
                2002 E39 M5

                Comment

                • dvallis
                  E30 Fanatic
                  • Oct 2015
                  • 1474

                  #68
                  Getting better at welding tabs on the tube



                  Final product before adding rivnuts to the whole thing. I'm really satisfied with the way everything is lining up. Nose mates nicely with the front quarters and everything sits on the chassis correctly.



                  Waiting for more 1/4-20 rivnuts and a 25/64 bit from Amazon.
                  "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

                  1987 E30 3L Turbo Stroker Das Beast
                  2002 E39 M5

                  Comment

                  • dvallis
                    E30 Fanatic
                    • Oct 2015
                    • 1474

                    #69
                    Nose tabs



                    Welding prep. Yes, really



                    TIG welding is great



                    We're gonna need a bigger boat (i.e. I need a bigger welding table)

                    "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

                    1987 E30 3L Turbo Stroker Das Beast
                    2002 E39 M5

                    Comment

                    • dvallis
                      E30 Fanatic
                      • Oct 2015
                      • 1474

                      #70
                      Front end mostly complete. Talking to a shop about a bigger welding table tomorrow.

                      "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

                      1987 E30 3L Turbo Stroker Das Beast
                      2002 E39 M5

                      Comment

                      • tomstin
                        E30 Addict
                        • Mar 2015
                        • 563

                        #71
                        How is this project going? I'm sure it's hard to wrench, photograph and document. Best wishes!
                        2004 525i Manual - 1985 325E Coupe Manual

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                        • 2mAn
                          SeƱior Mod
                          • Aug 2010
                          • 20670

                          #72
                          dvallis

                          Bid for the chance to own a Maserati 450S Re-Creation at auction with Bring a Trailer, the home of the best vintage and classic cars online. Lot #247,871.


                          Lets see whats going on with this thing?!
                          Simon
                          Current Cars:
                          -1966 Lotus Elan
                          -1986 German Car
                          -2006 Volkswagen Jetta TDI

                          Make R3V Great Again -2020

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                          • dvallis
                            E30 Fanatic
                            • Oct 2015
                            • 1474

                            #73
                            HEY! Here I am. Thanks for checking in 2mAn. I didn't think you guys wanted to see me bending tube 4,000 times. I have good news though.

                            THE TUBE FRAME IS DONE. Almost.

                            Here's the front view, on the frame


                            Then the rear view, missing the tail cone


                            And now the final tube frame, on the welding table, with the tail cone.




                            That's all hand bent steel tub, TIG welded.

                            It needs a tail cone so that we can remove the tube frame from the corvette chassis. We move it with an overhead crane.


                            Next steps are:

                            - Finish welding on some tube frame joints
                            - Bab tail cone attachment tabs
                            - Coat tube frame with trisodium phosphate (rust converter, inhibitor)
                            - Paint large and small tube frame with Rustoleum black enamel
                            - Weld unify large and small tube frames
                            - Align body to chassis
                            - Install bushings between tube frame and chassis
                            - Move tube frame to rolling support frame
                            - Start forming and installing aluminum panels
                            "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

                            1987 E30 3L Turbo Stroker Das Beast
                            2002 E39 M5

                            Comment

                            • dvallis
                              E30 Fanatic
                              • Oct 2015
                              • 1474

                              #74
                              And we have baby shop Vultures now. So that's cool.

                              "And then we broke the car. Again." Mark Donohue, "The Unfair Advantage"

                              1987 E30 3L Turbo Stroker Das Beast
                              2002 E39 M5

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