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heinzboehmer's 2002 Topaz 6MT Coupe

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    Progress!

    First up, sliced test fit piece for verifying the contour of the bonding surface:

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    Looking good! It's hard to hold the piece and take pictures at the same time, so some of the surfaces (top, mostly) look like they're not sitting flush, but the fit is much better in real life.

    Checking wiper linkage clearance:

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    No issues there.

    I did, however, find that the passenger side of the mount extended too far and would interfere with the braces. Made a couple changes to the design and printed yet another prototype:

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    This time everything actually fit! Braces are still slightly too long, so they are interfering with themselves, but cutting them down will solve that:

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    Took some measurements and decided where I want the fasteners to live. Here's a visual reference of their locations in space:

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    Orange cylinders are where the braces will get fastened to the piece and green cylinder is the virtual point where the two braces would intersect. Looking pretty decent there as well.

    I did, unfortunately, have to make the decision to move the fastener location on the strut bar piggyback clamps. Instead of having the braces attach behind the strut bar studs (as previously designed), they will attach to the innermost stud, underneath the stock bracket. Things are too tight in that area to have that attachment point where I wanted it previously, but this should still work well.

    The change is a bit easier to explain with a picture:

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    The bar is attached where it will now go and the hole in the 3D printed bracket is where I originally wanted it to go. With this change, the brackets aren't strictly necessary, as all that's needed is a longer inner stud, but I'll be keeping it to reinforce the cast factory strut bar end piece. I'm still 50/50 on whether they will crack when I hit the first pot hole or not

    Here's a dry fit of the entire thing:

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    Looking very promising!

    Also, you can probably tell that the driver's side brace is very much in the way of my current dipstick location. Unfortunate, but not a big deal. I'll likely just swap over to the CSL dipstick.
    2002 Topasblau M3 - Coupe - 6MT - Karbonius CSL Airbox - MSS54HP Conversion - Kassel MAP - SSV1 - HJS - PCS Tune - Beisan - MK60 Swap - ZCP Rack - Nogaros - AutoSolutions - 996 Brembos - Slon - CMP - VinceBar - Koni - Eibach - BlueBus - Journal

    2012 Alpinweiss 128i - Coupe - 6AT - Slicktop - Manual Seats - Daily - Journal

    Comment


      Will they crack? Absolutely yes.
      ‘02 332iT / 6 | ‘70 Jaguar XJ6 electric conversion

      Comment


        Originally posted by Bry5on View Post
        Will they crack? Absolutely yes.
        Yeeeaah

        I guess it's more a matter of when than if. Fortunately they don't look too hard to remake out of sheet metal. And then I can put the mounting points for everything where I actually want them.

        But at this point I kinda just want to see how long these will last
        2002 Topasblau M3 - Coupe - 6MT - Karbonius CSL Airbox - MSS54HP Conversion - Kassel MAP - SSV1 - HJS - PCS Tune - Beisan - MK60 Swap - ZCP Rack - Nogaros - AutoSolutions - 996 Brembos - Slon - CMP - VinceBar - Koni - Eibach - BlueBus - Journal

        2012 Alpinweiss 128i - Coupe - 6AT - Slicktop - Manual Seats - Daily - Journal

        Comment


          Originally posted by heinzboehmer View Post

          Yeeeaah

          I guess it's more a matter of when than if. Fortunately they don't look too hard to remake out of sheet metal. And then I can put the mounting points for everything where I actually want them.

          But at this point I kinda just want to see how long these will last
          I'd just be designing the sheet metal parts now if I were you

          Thick flat sheet with a mild bend and some tab/slots for gussets, some quick welds and you'll be good to go.
          ‘02 332iT / 6 | ‘70 Jaguar XJ6 electric conversion

          Comment


            Originally posted by Bry5on View Post

            I'd just be designing the sheet metal parts now if I were you

            Thick flat sheet with a mild bend and some tab/slots for gussets, some quick welds and you'll be good to go.
            I've been giving some thought to this and for some reason, I really want to try and keep the stock strut bar brackets. That voice in my brain that tells me to make everything look factory can be annoying sometimes...

            Anyway, I think I might try going for an intermediate approach that lands somewhere in between of "small reinforcement bracket" and "full replacement". Basically do the thick flat sheet part you were talking about, but make it so that the stock piece bolts up to it and essentially acts as the gusset. Would just need to drill out the threads in the stock piece and add studs to the sheet metal so that it bolts through.

            Would also likely need to machine down the "feet" on the stock parts so that the stock bar doesn't move up significantly:

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            Getting too far ahead of myself though, first need to finalize the design for the windshield bracket and see where the E86 braces land with those final dimensions. Then I can see move on to the (first) final design of the front brackets.
            2002 Topasblau M3 - Coupe - 6MT - Karbonius CSL Airbox - MSS54HP Conversion - Kassel MAP - SSV1 - HJS - PCS Tune - Beisan - MK60 Swap - ZCP Rack - Nogaros - AutoSolutions - 996 Brembos - Slon - CMP - VinceBar - Koni - Eibach - BlueBus - Journal

            2012 Alpinweiss 128i - Coupe - 6AT - Slicktop - Manual Seats - Daily - Journal

            Comment


              Easy enough. Get me a pair of strut mount castings in the next couple weeks and I’ll machine them down for you one evening.
              ‘02 332iT / 6 | ‘70 Jaguar XJ6 electric conversion

              Comment


                Hell yeah, thanks. Have two sets of those, so should be easy. We'll find a time.

                (Have two sets because the early mounts have press in studs vs screw in and figured the screw in ones would be easier to work with)
                2002 Topasblau M3 - Coupe - 6MT - Karbonius CSL Airbox - MSS54HP Conversion - Kassel MAP - SSV1 - HJS - PCS Tune - Beisan - MK60 Swap - ZCP Rack - Nogaros - AutoSolutions - 996 Brembos - Slon - CMP - VinceBar - Koni - Eibach - BlueBus - Journal

                2012 Alpinweiss 128i - Coupe - 6AT - Slicktop - Manual Seats - Daily - Journal

                Comment


                  I like your bracket idea, why not commission it to a machine shop and have a billet set that will last forever, unless you have to use their safety benefit (:

                  Comment


                    Originally posted by maupineda View Post
                    I like your bracket idea, why not commission it to a machine shop and have a billet set that will last forever, unless you have to use their safety benefit (:
                    Mostly cost. Laser cut parts will be ~$50 after bending and powder coating. Billet part will be multiple orders of magnitude more.

                    I might do a billet version in the future, but I have a suspicion that I'll want to iterate on the design down the line (like always) and would rather not end up with multiple useless billet pieces.
                    2002 Topasblau M3 - Coupe - 6MT - Karbonius CSL Airbox - MSS54HP Conversion - Kassel MAP - SSV1 - HJS - PCS Tune - Beisan - MK60 Swap - ZCP Rack - Nogaros - AutoSolutions - 996 Brembos - Slon - CMP - VinceBar - Koni - Eibach - BlueBus - Journal

                    2012 Alpinweiss 128i - Coupe - 6AT - Slicktop - Manual Seats - Daily - Journal

                    Comment

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