BAck from chassis shop, part 2 December 05, 2006, 04:13:23 PM After climbing over the bar for a few weeks, I figured I needed to do something.Jim Quote Selected
BAck from chassis shop, part 2 Reply #1 – December 05, 2006, 05:31:36 PM Welds look PHENOMENAL, but I hope they told you that cage is no longer NHRA legal. Quote Selected
BAck from chassis shop, part 2 Reply #2 – December 05, 2006, 05:49:11 PM Those are some PRETTY welds....I need to hold that bird still that I use when I weld :p Quote Selected
BAck from chassis shop, part 2 Reply #3 – December 05, 2006, 06:06:23 PM Quote from: 46Tbird;117074Welds look PHENOMENAL, but I hope they told you that cage is no longer NHRA legal.Actually, id depends on the class youre in, and how fast your car is. Those swing outs are NHRA legal for some classes, and some index's. Quote Selected
BAck from chassis shop, part 2 Reply #4 – December 05, 2006, 06:16:05 PM Quote from: 46Tbird;117074Welds look PHENOMENAL, but I hope they told you that cage is no longer NHRA legal.Why would that be? Quote Selected
BAck from chassis shop, part 2 Reply #5 – December 05, 2006, 07:28:11 PM That's awesome. Quote Selected
BAck from chassis shop, part 2 Reply #6 – December 05, 2006, 07:35:42 PM Sorry.I'm mistaken.I was thinking for cars 9.99 and faster (they are illegal at that point)."2005 NHRA Rulebook, General Regulations 4:10 ROLL BARS All roll bars must be within 6" of the rear, or side, of the driver's head, extend in height at least 3" above the driver's helmet with driver in normal driving position and be at least as wide as the driver's shoulders or within 1" of the driver's door. Roll bar must be adequately supported or cross-braced to prevent forward or lateral collapse. Rear braces must be of the same diameter and wall thickness as the roll bar and intersect the roll bar at a point not more than 5" from the top of the roll bar. Crossbar and rear braces must be welded to main hoop. Side-bar must be included on driver's side and must pass the driver at a point midway between the shoulder and elbow. Swing-out sidebar permitted. All roll bars must have in their construction a cross bar for seat bracing and as the shoulder harness attachment point. Cross bar must be installed no more than 4" below, and not above, the driver's shoulders or to the side bar. All vehicles with OEM frame must have roll bar welded or bolted to frame; installation of frame connectors on unibody cars does not constitute a frame; therefore it is not necessary to have the roll bar attached to the frame. Unibody cars with stock floor and firewall (wheeltubs permitted) may attach roll bar with 6-inch x 6-inch x 0.125-inch (1/8") steel plates on top and bottom of floor bolted together with at least four 3/8-inch (0.375") diameter bolts and nuts, or weld main hoop to rocker sill area with 0.125-inch (1/8") reinforcing plates, with plates welded completely. All 4130 chromoly tube welding must be done by approved TIG heliarc process; mild steel welding must be done by approved MIG wire feed or approved TIG heliarc process. Welding must be free of slag and porosity. Any grinding of welds prohibited. See illustration. Roll bar must be padded anywhere drivers helmet may contact it while in driving position. Adequate padding must have minimum 1/4-inch compression or meet S.F.I. Spec 45.1. All cars running 180-mph or faster, S.F.I. Spec 45.1 mandatory."-----Be careful though, the swingout you use has to be NHRA approved. I assume it is, as it looks like your chassis shop knows what they are doing. :) Quote Selected
BAck from chassis shop, part 2 Reply #7 – December 05, 2006, 07:40:03 PM No problem..."I was thinking for cars 9.99 and faster (they are illegal at that point)."I guess I'll be ok for a few years...LOL.Jim Quote Selected
Topic: BAck from chassis shop, part 2 (Read 1607 times)
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