Cage question!

[novanutcase]

I am trying to figure out how I want to configure the cage in my build and had a design question. I want to run the rear downbar inside the C-pillar('66 Chevy II/Nova) but if I do this it will hit right off the top of the minitub. If I welded tubing that was bent to the same outside radius of the tub and ran it from the trunk to the inside rear floor then welded the C-pillar down bar to it would this be structurally OK? I could weld a crossbar between the two radiused tubes underneath the package tray for lateral stability!

[ccracin]

This is a reasonable solution, but I have a couple comments. If both ends of the curved tube have a direct path to the chassis than it would be OK. If you are only welding to the pan than this is not a good idea. Not just with what you are doing, but any cage should never be welded to just the pan. Also, the cross bar is a good idea. You may also want to try to triangulate this area under the tray. Right angles do not provide good lateral stability. JMO. Good luck with a great project.

[novanutcase]

THIS is the info I was looking for! Thank you Chad! The car will be full frame( Check out the build https://lateral-g.net/forums/showthread.php4?t=4432) and, yes, I plan on welding the curved tube to the new frame at both ends. Any other comments and/or questions would be greatly appreciated!

John

[ccracin]

John,

No problem, the build looks like it is moving along well. I have to agree with everyone else that car is on my list of "Want To Builds". I love talking about this stuff. I'm getting excited, we are hopefully going to be cutting steel for the chassis of our truck this coming week. I will post some pics once we get started. Later!

[novanutcase]

Yes...Please..Post away Brother!!

[ccracin]

John,

I was playing around with my new software and did the attached drawing. It is crude, but this is what I meant about the triangulation part of my comment.