Pipe Notch

[SCOTI]

Originally Posted by kieth

Hey Lake Roadster, read this thread and your analysis with great interest, the information is invaluable and I would just like to ask a question about the beam analysis. You state that most of the strength is being added by adding material above the frame, I would say it is also being added by the double wall material in the tubing ?

1. If one built a 2.5" notch kit that had upper and lower frame flanges inside and outside of the frame lets say 5/16 110,000 psi yield strength material bolted in with grade 8 bolts couldn,t we pick up enough strength to equal the old frame. (I do not ask this to be critical just a different way of looking at the problem)

2. What is the section modulus of the stock 60-66 frame and the yield strength of the material.

thanks in advance. Kieth

I'll let Lakeroadster answer your question specifically, but he & I discussed a similar scenario. I proposed wrapping the inside, outside, plus the top & bottom lip of the frame rail w/.375" material. The rail itself was 5" tall w/a 3" .250" thick pipe c-notch. It was close....