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> BUILD-OFF CHALLENGE: Tygaboy's '75 LS3, It seemed a good idea at the time...
tygaboy
post May 27 2018, 06:08 PM
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QUOTE(Andyrew @ May 27 2018, 02:01 PM) *

Do you have space to move that muffler up? Doesn't look that concealed unless it's just mock position. Love the firewall and the welds (IMG:style_emoticons/default/smile.gif)


That's its final position. I suppose it could have move up a bit but it's not the lowest part of the car. You can do a full review when you see it on Sat. I'm interested to hear what folks think once they see it in person.
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tygaboy
post May 27 2018, 06:09 PM
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Playing with tighter rivet spacing and adding more of the planned layout, just to get a better feel for how it'll look. Still working on how the two rivet lines will come together on the inside of that lowest piece...


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tygaboy
post May 27 2018, 06:15 PM
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And then it was back to the fiddly stuff. I think I've landed on how I want to finish off the upper section of the fire wall. Here's my current thinking for how to address the door bar.
I'll add a piece to the top of the main fire wall that has the same sort of bead detail that this upper section will rivet to. Pics as I get that fabbed.


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tygaboy
post Jun 1 2018, 07:16 PM
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Brent (bbrock) was in town from Montana and was able to swing by for a visit!
Proving yet again what great people we have participating on this board!

Brent, it was great to meet you!

(but in typical "we were all focused on car stuff", I didn't remember to get a pic... (IMG:style_emoticons/default/headbang.gif)

As far as progress on the car, the driver side firewall frame got final welded. Time to make that side's panel and order up the rivets...!


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db9146
post Jun 1 2018, 07:46 PM
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Wow, this is looking great. Fantastic attention to detail !!!!!
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tygaboy
post Jun 3 2018, 04:18 PM
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Well, it seems a good time was had by all at yesterday's Fabrication day event. While I was hoping to get some time on my build today, it turned into a long tandem ride with my wife, a visit to see my buddy's plane that just got wrapped and some honey do items.

I did, however, accomplish this: my first rivet!
I'll use these for the fire wall and tunnel panels. CherryMax structural rivets, not regular ol' pop rivets. Different animal altogether.

Yes, it was just a test but also yes, this was all I did on the car today.

And people wonder why this is taking so long... (IMG:style_emoticons/default/shades.gif)


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ConeDodger
post Jun 3 2018, 04:22 PM
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Chris,
Weren't you thinking along these lines? (IMG:style_emoticons/default/smile.gif)


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tygaboy
post Jun 4 2018, 10:19 AM
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QUOTE(ConeDodger @ Jun 3 2018, 03:22 PM) *

Chris,
Weren't you thinking along these lines? (IMG:style_emoticons/default/smile.gif)


Oh Rob... (IMG:style_emoticons/default/sad.gif)
I'm hurt that you haven't prioritized my build above all else in your life... (IMG:style_emoticons/default/poke.gif) (IMG:style_emoticons/default/happy11.gif)
I all but finished that up back in Nov. of last year.


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bbrock
post Jun 4 2018, 09:32 PM
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On my way home to Bozeman now. It was great meeting you last Friday Chris!!! Amazing work you are doing on that rocket ship. Sorry I missed meeting others at the fab party on Saturday. Looks like I missed a great time. (IMG:style_emoticons/default/aktion035.gif)
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ConeDodger
post Jun 4 2018, 09:58 PM
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QUOTE(tygaboy @ Jun 4 2018, 01:19 PM) *

QUOTE(ConeDodger @ Jun 3 2018, 03:22 PM) *

Chris,
Weren't you thinking along these lines? (IMG:style_emoticons/default/smile.gif)


Oh Rob... (IMG:style_emoticons/default/sad.gif)
I'm hurt that you haven't prioritized my build above all else in your life... (IMG:style_emoticons/default/poke.gif) (IMG:style_emoticons/default/happy11.gif)
I all but finished that up back in Nov. of last year.


Ha! (IMG:style_emoticons/default/av-943.gif)

Missed that! (IMG:style_emoticons/default/blink.gif)
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amfab
post Jun 5 2018, 07:10 PM
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Im curious about the cherry max rivets, what makes them so different?
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tygaboy
post Jun 7 2018, 08:02 AM
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QUOTE(amfab @ Jun 5 2018, 06:10 PM) *

Im curious about the cherry max rivets, what makes them so different?


Hope this isn't too much detail, and note that we're sorta moving into aircraft construction when talking about "strength" of rivets. For my purposes, I'm leveraging the aircraft guidelines, not following them to the letter. That said:

When you install a pop rivet, the steel core breaks off, leaving a hollow rivet. They aren't considered structural because small-ish forces can destroy the joint. They can fail due to forces in shear, tension and torsional directions. They generally get used to install a surface panel or decorative element and can easily be drilled out, replaced, etc.

A structural rivet retains the core when it's installed, making them far stronger. Also, a lot more fun to drill out.


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motoTrooper
post Jun 8 2018, 09:54 AM
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Thanks for the additional information, I was wondering about your choice of using rivets for the firewall panels. Should be pretty structurally strong. Are you going to make the center panel bolt-on/off for service access?
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tygaboy
post Jun 8 2018, 05:48 PM
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QUOTE(motoTrooper @ Jun 8 2018, 08:54 AM) *

Thanks for the additional information, I was wondering about your choice of using rivets for the firewall panels. Should be pretty structurally strong. Are you going to make the center panel bolt-on/off for service access?


Yes, that center section will be removable. I just need to finalize framing the entire opening, then I'll get going on the removable part.
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amfab
post Jun 8 2018, 11:50 PM
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very cool, thanks
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tygaboy
post Jun 9 2018, 10:19 PM
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I worked a bit more on the uppermost section of the firewall. After making some practice pieces to be sure I understood the necessary dimensions, I fabbed up what I hope is a final piece.


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tygaboy
post Jun 9 2018, 10:20 PM
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Mocked into position


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tygaboy
post Jun 9 2018, 10:20 PM
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Practice piece to work out where the edges and hole need to be...


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tygaboy
post Jun 9 2018, 10:23 PM
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Once I had the dimensions, I took a swing at the final part. Turned out pretty well. I still need to do final trimming and add a bend so the top portion tips back and can be riveted to the stock portion of the fire wall.
I'm thinking I'll add a bead or some sort of detail. That's still TBD.


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tygaboy
post Jun 16 2018, 12:44 PM
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Closing in on closing it in! A few more pieces to fab then it's time for riveting and welding.


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