I've seen some pickle forkless rails set up similar to this but they used two tubes down from a cross-piece not a hoop. The looks so much better in so many ways than the rails had. In the sand the cooling opening is not a good idea though. If you have a good support for it adding the truss bars to eliminate any flex and support the load seems like a good idea to me.
Thinking on this some more ... Why is it necessary to adjust "links" into tension (shorten) or extension (longer) ?
Main idea is to form rigidity between shock towers (upper chassis parts) to trans supports (pickle forks- lower chassis parts). With the idea of creating a "rigid cage" the way the links are adjusted should not matter... As long as they are "rigid" (tight)...
Dale
"Fear The Government That Wants To Take Your Guns" - Thomas Jefferson
1970 "Kellison Sand Piper Roadster"
Makes sense to me. There is some flex going on at the torsion housing where it meets the pan, I know the black Berg '67 racer had an issue there from a gazillion hard launches, and it had to be repaired. I wonder if we also experience this to some extent. IMO, This is where a preload of some sort would help the situation, so that torsion housing is torqued (preloaded) on way or the other.
Another stiffing issue (at torsion tube ends) may be as in my application its in a FG buggy, the 4 points (2 on each side) where shock towers bolt to body do not exist as with full bodied bug....
Dale
"Fear The Government That Wants To Take Your Guns" - Thomas Jefferson
1970 "Kellison Sand Piper Roadster"
Well, I tried tying a support rod (old Directv satellite dish parts) from the lower torsion tube to the bottom-side of the rear cage mounts. No bueno. My car is street-legal and I took it took a rallycross last month. It was incredible loud inside the car. Every bump resulted in a slight squeak of the parcel shelf up against the cage. This is too much to deal with when you have to drive to and from an event an hour each way. I have a half-cage in my car. I think tying it to a full-cage front to rear would not have been as bad but the half-cage has some flexibility to with just four mounting points.
I moved the support rod out to the side and it works much better now. Took the car to the autocross yesterday. It makes some noise when you stomp on the gas, but it's not nearly as loud now. Definitely helped getting the power to the ground.
You do not have the required permissions to view the files attached to this post.
If you have a good support for it adding the truss bars to eliminate any flex and support the load seems like a good idea to me.
