norvalwilhelm
Well-known member
Our frames right where the down tube for the windshield comes is extremely hard to get at, the floor pan is in the road, the frame is curved back, no straight side, the gas line is there tucked up and the brake lines on the other side.
The plate on the bottom is the only place that you can get a flat surface and easy welding. I used a plate but put heavy walled tubes up through the floor, The top of my tubes is closed off with a 5/8th hole for a grade 8 cap screw. I will but the down tube on this stub and from the bottom put the cap screw up the tube and bolt the bar down.
This is the stubs that I made
I cut a small hole in the floor and from the bottom pushed one of the stubs up through the floor and welded it solid to the bottom of the frame. Here again all welding is outside the car and easy to get at. No crazy angles
This is inside the car and I did fiberglass the stud to the floor. The front bars through the firewall will be welded solid to this stud and not removeable.
A lower side bar will also attach to this stud but be removable and adjustable to apply load to the chassie. I will be able to adjust it like a spreader bar and apply a slight preload.
The upper swing out bar will attach higher and to the down tube on top of the stud.
This to me is the hardest bar of them all. I want this down tube to hug the window pillar and be invisible from the side window and at the same time not interfer with the passengers view. I don't want my wife looking around a roll bar. The upper hoop is tucked higher then the side of the Tee roof so it is invisible from the side windows.
I want the benefit of a cage but not the intrusion that they have in an already small interior.
The plate on the bottom is the only place that you can get a flat surface and easy welding. I used a plate but put heavy walled tubes up through the floor, The top of my tubes is closed off with a 5/8th hole for a grade 8 cap screw. I will but the down tube on this stub and from the bottom put the cap screw up the tube and bolt the bar down.
This is the stubs that I made
I cut a small hole in the floor and from the bottom pushed one of the stubs up through the floor and welded it solid to the bottom of the frame. Here again all welding is outside the car and easy to get at. No crazy angles
This is inside the car and I did fiberglass the stud to the floor. The front bars through the firewall will be welded solid to this stud and not removeable.
A lower side bar will also attach to this stud but be removable and adjustable to apply load to the chassie. I will be able to adjust it like a spreader bar and apply a slight preload.
The upper swing out bar will attach higher and to the down tube on top of the stud.
This to me is the hardest bar of them all. I want this down tube to hug the window pillar and be invisible from the side window and at the same time not interfer with the passengers view. I don't want my wife looking around a roll bar. The upper hoop is tucked higher then the side of the Tee roof so it is invisible from the side windows.
I want the benefit of a cage but not the intrusion that they have in an already small interior.





