So i rearranged my day and came home a bit early this afternoon and got stuck into the rails.
Here is what i have come up with sofar:
[IMG]http://gallery2.plebeians.net/d/27833-1/IMG_2690.JPG[/IMG]
[IMG]http://gallery2.plebeians.net/d/27842-1/IMG_2693.JPG[/IMG]
[IMG]http://gallery2.plebeians.net/d/27845-1/IMG_2694.JPG[/IMG]
Not bad for about an hours work if i say so myself.
Pretty much level:
[IMG]http://gallery2.plebeians.net/d/27854-1/IMG_2697.JPG[/IMG]
[IMG]http://gallery2.plebeians.net/d/27857-1/IMG_2698.JPG[/IMG]
And that little unevenness can be adjusted out with the slotting on the sides of the rails.
And for GTSBoy, this is why im not going to bother cutting out the original crossbeam:
[IMG]http://gallery2.plebeians.net/d/27848-1/IMG_2695.JPG[/IMG]
There is buggerall clearance under the floorpan anyway, and i need to have the seat raked back slightly to keep my knees up otherwise i have a hell of a time using the clutch as my knee locks up.
I havnt welded it in yet, as i need to remove all the fuel lines from the trans tunnel (not taking that risk) and remove anything which might be damaged by the welding sparks, cover windows etc etc.
Im not sure whether ill relieve all the sides by 3mm to fit some plate in there, im sorely tempted to, but the front will be reinforced to the crossbeam, and the outboard side of the rear is 4mm thick anyway.
While i was mucking around the other night in the garage i mocked up where the brake bias adjuster will sit:
[IMG]http://gallery2.plebeians.net/d/27839-1/IMG_2692.JPG[/IMG]
Ill mount it after i have finished welding in the rails.
I think i have a bit more room than you there, im a pretty small guy.
Just finished welding it all up:
[IMG]http://gallery2.plebeians.net/d/27869-1/IMG_2718.JPG[/IMG]
I was a touch worried about penetration, but a quick check revealed that i need not be worried:
[IMG]http://gallery2.plebeians.net/d/27872-1/IMG_2725.JPG[/IMG]
I plated the front outer weld, but didnt bother plating the rest. Reason being that i was welding to the existing seatbelt mount points, which are already heavily plated as so:
[IMG]http://gallery2.plebeians.net/d/27875-1/IMG_2724.JPG[/IMG]
(from the underside).
I initially tacked it in and then bolted in the seat to measure. I now have about 2-3″ of room between my head and the rollcage with my helmet on.