Roll cage and tub frame front end size OD specs?

[jarrodblake]

Getting ready to order a new tubing bender. I will be doing a full cage and doing a mild tube frame front end. I was planing on ordering two sets of dies 1" with a 5" radius and 1-3/4" with a 7" radius.

I was wondering if anyone had a different opinion on die sizes and why? Other die sets that are available 1" on 5" radius, 1-1/4" on 5" radius, 1-1/2" on 7" radius, 1-5/8" on 7" radius, 1-3/4" on 7" radius.

[Trackrash]

Most full cages use 1 1/2" tubing.

I would recommend reading the safety/cage requirements for the organization(s) you intend to be involved with. Building a cage requires some experience and expertise.

What welding experience do you have?

[jarrodblake]

I have done two bars one in my old rock crawler and my old auto x car. I used 1 3/4 120w dom on both, as far as welding I have done a lot of other projects and fabrication such and tube fenders, frame mods etc. A buddy and I went half in on a tube bender a few years age but he moved a way in the middle of a project and bought it and took it with him. I thought it was time to buy my own. As far a rules it will be a week end, track day car no rules. The car is a 1970 911 thats in the middle of a mid engine conversion that may or may not be converted to a v8.

I was thinking about using 1.5 dom and trying to get it as close to the a and b pillars as I can so it would not hurt the visibility and cut down on space.

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