cage question
#1165033
01/26/12 03:35 AM
01/26/12 03:35 AM
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Joined: Nov 2004
Posts: 3,518 pacific northwest
Stroker Scamp
OP
master
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OP
master
Joined: Nov 2004
Posts: 3,518
pacific northwest
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gonna put a cage on the car, it allready has a roll bar, my question is, the front half of the cage can you put in a one piece halo on the roof line, then attach the down bars to the floorthen the halo, or do the down bars need to be one piece on the drivers and the passenger side and complete the halo with a separate bar up near the upper windshield, dont have a nhra ruelbook anymore thnx
footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip 73 Duster 340 street strip 12.79 @ 105
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Re: cage question
[Re: Stroker Scamp]
#1165037
01/26/12 11:39 AM
01/26/12 11:39 AM
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Joined: Jan 2003
Posts: 1,612 westerly, ri. usa
440lebaron
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,612
westerly, ri. usa
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if you want to go 9's make sure your roll bar sonic checks at min .118 wall for tech. gary
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Re: cage question
[Re: Crizila]
#1165040
01/27/12 12:04 AM
01/27/12 12:04 AM
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Joined: Nov 2004
Posts: 3,518 pacific northwest
Stroker Scamp
OP
master
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OP
master
Joined: Nov 2004
Posts: 3,518
pacific northwest
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thanks guys, neighbors picking up a bender so looks like the interiors coming out soon i'll post pics of progress
footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip 73 Duster 340 street strip 12.79 @ 105
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Re: cage question
[Re: StrokerAspen]
#1165042
01/27/12 10:05 AM
01/27/12 10:05 AM
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Joined: Jan 2004
Posts: 4,584 Motor City
6PKRTSE
master
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master
Joined: Jan 2004
Posts: 4,584
Motor City
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Yes, you can run it this way. Mine is done the opposite. You can also run more than one oiece on the A Pillar bars. This is how we did mine. It is actually stronger since it ties into the kick panels & then goes thru the floors into the inner rocker panels & frame connectors underneath.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: cage question
[Re: racerx]
#1165045
01/27/12 01:27 PM
01/27/12 01:27 PM
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Joined: Jan 2004
Posts: 4,584 Motor City
6PKRTSE
master
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master
Joined: Jan 2004
Posts: 4,584
Motor City
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My rear bar going to the speaker tray is one big loop from the main hoop with 4 other bars tieing to it also from different point from the main hoop. Kind of over kill but looks cool & then thru the rear speaker tray to the under car shock bar.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: cage question
[Re: Crizila]
#1165048
01/27/12 03:02 PM
01/27/12 03:02 PM
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Joined: Jan 2003
Posts: 642 New Jersey
Craig
mopar
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mopar
Joined: Jan 2003
Posts: 642
New Jersey
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Quote:
Nothing in the rules ( as far as I know ) about how many pieces you use in construction. I had to shorten my halo, so it is actually made up of 3 pieces. Installed it first. Then the down bars.
Crizila, I think your halo bar won't pass NHRA tech due to it being cut and butt-welded, if that's what I'm seeing in the pic. It would have to have a sleeve over that joint, fully welded on the edges and rosette welds thru. This is from General Regulations 4:4 Frames - "All butt welds must have visible reinforcement (i.e., sleeve and rosette welds)."
Also on the questions about interrupting the roof bars with the dash bar, there is a complicated section that I think basically says the dash bar needs to be upgraded to 1-1/2" or have a lot of gussets:
For Sportsman full-bodied cars that require a roll cage (7.50 seconds and slower, including cars inspected to SFI 25.4 or 25.5): If the windshield/roof bars are interrupted by the dash bar, then either the entire dash bar must be minimum 1 1/2-inch x .058-inch CM(.118-inch MS) or the entire dash bar must be minimum 1 1/4-inch x .058-inch CM (.118-inch MS) and must be braced with gussets to both the upper and lower sections of each windshield/roof bar. The gussets may be either 1.75-inch x 1.75-inch x .110-inch (with one 1/2-inch-diameter and two 5/16-inch-diameter holes maximum) 4130 CM or MS plate (triangle shaped) or 3/4-inch x.049-inch CM(.118-inch MS) tubing at least 4 inches long. An interrupted windshield/roof bar is defined as one that has been completely severed into upper and lower sections/pieces and then the sections/pieces are welded to the dash bar.
67 Dart, 426 Hemi, 9.23/145mph, 3400lbs, footbraked, owned since 1982
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Re: cage question
[Re: Craig]
#1165050
01/27/12 10:48 PM
01/27/12 10:48 PM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Quote:
Quote:
Nothing in the rules ( as far as I know ) about how many pieces you use in construction. I had to shorten my halo, so it is actually made up of 3 pieces. Installed it first. Then the down bars.
Crizila, I think your halo bar won't pass NHRA tech due to it being cut and butt-welded, if that's what I'm seeing in the pic. It would have to have a sleeve over that joint, fully welded on the edges and rosette welds thru. This is from General Regulations 4:4 Frames - "All butt welds must have visible reinforcement (i.e., sleeve and rosette welds)."
Also on the questions about interrupting the roof bars with the dash bar, there is a complicated section that I think basically says the dash bar needs to be upgraded to 1-1/2" or have a lot of gussets:
For Sportsman full-bodied cars that require a roll cage (7.50 seconds and slower, including cars inspected to SFI 25.4 or 25.5): If the windshield/roof bars are interrupted by the dash bar, then either the entire dash bar must be minimum 1 1/2-inch x .058-inch CM(.118-inch MS) or the entire dash bar must be minimum 1 1/4-inch x .058-inch CM (.118-inch MS) and must be braced with gussets to both the upper and lower sections of each windshield/roof bar. The gussets may be either 1.75-inch x 1.75-inch x .110-inch (with one 1/2-inch-diameter and two 5/16-inch-diameter holes maximum) 4130 CM or MS plate (triangle shaped) or 3/4-inch x.049-inch CM(.118-inch MS) tubing at least 4 inches long. An interrupted windshield/roof bar is defined as one that has been completely severed into upper and lower sections/pieces and then the sections/pieces are welded to the dash bar.
4.4 applies to frames, no roll bars. 4.10 has to do with roll bars, and there is no mention of butt welding in that section. My butt welds are V'ed all the way to the inner diameter of the tubing for full weld penetration. No doubt in my mind they are every bit as strong as the tubing. I'm not worried about it - ether from a safety or passing tech aspect.
Fastest 300
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Re: cage question
[Re: Crizila]
#1165051
01/27/12 11:29 PM
01/27/12 11:29 PM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Few more pics of a 10 point cage in a late B. I added the bottom longitudinal bar ( not part of the "kit" )to make it a true cage and add some more strength in the middle the car ( unibody area, where there is no frame and a large expanse in a 115" WB unibody car ).
Fastest 300
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