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cage question #1165033
01/26/12 03:35 AM
01/26/12 03:35 AM
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Stroker Scamp Offline OP
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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
Re: cage question [Re: Stroker Scamp] #1165034
01/26/12 03:49 AM
01/26/12 03:49 AM
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Alberta Canada
StrokerAspen Offline
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My dads car is done as you have described and hasn't had any issue.

At the Dave Morgan Chassis Seminar, he touched on both ways, and said both are fine. The one piece halo is a bit easier he said.

-Kenny

Re: cage question [Re: StrokerAspen] #1165035
01/26/12 10:09 AM
01/26/12 10:09 AM
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Mo.
racerx Offline
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I have a friend that races a Chevy with a one piece halo and never had a problem with teck.As a matter of fact it was bought as a up grade kit for his car.I wish they were available for chrysler cars

Re: cage question [Re: racerx] #1165036
01/26/12 10:37 AM
01/26/12 10:37 AM
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dennismopar73 Offline
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What about 2 piece down bars, attached at the dash bar then to the halo? and 1 piece halo?

Re: cage question [Re: Stroker Scamp] #1165037
01/26/12 11:39 AM
01/26/12 11:39 AM
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westerly, ri. usa
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440lebaron Offline
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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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paypal/check/money order, shipping is from zip 02891, buyer pays paypal fees 24% IRS 1099A plus 3% of part price, check/money order preferred
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Re: cage question [Re: 440lebaron] #1165038
01/26/12 11:55 AM
01/26/12 11:55 AM
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dennismopar73 Offline
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well I used 135 dom shouldn't be any issue

Re: cage question [Re: Stroker Scamp] #1165039
01/26/12 12:28 PM
01/26/12 12:28 PM
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Crizila Offline
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Quote:

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


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.

7037890-halo1.jpg (130 downloads)

Fastest 300
Re: cage question [Re: Crizila] #1165040
01/27/12 12:04 AM
01/27/12 12:04 AM
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Posts: 3,517
pacific northwest
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Stroker Scamp Offline OP
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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
Re: cage question [Re: racerx] #1165041
01/27/12 01:07 AM
01/27/12 01:07 AM
Joined: Nov 2007
Posts: 1,600
Alberta Canada
StrokerAspen Offline
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Quote:

I have a friend that races a Chevy with a one piece halo and never had a problem with teck.As a matter of fact it was bought as a up grade kit for his car.I wish they were available for chrysler cars




S&W's kit is done this way from the looks of it. I almost bought mine from there, but Art Morrison was closer.

http://www.swracecars.com/store/RollBarsCages-OSCAR_24.aspx

-Kenny

Re: cage question [Re: StrokerAspen] #1165042
01/27/12 10:05 AM
01/27/12 10:05 AM
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Motor City
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6PKRTSE Offline
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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.

7039291-100_1482.jpg (156 downloads)

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.
Re: cage question [Re: 6PKRTSE] #1165043
01/27/12 10:06 AM
01/27/12 10:06 AM
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Motor City
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Another shot.

7039293-100_1483.jpg (174 downloads)

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.
Re: cage question [Re: 6PKRTSE] #1165044
01/27/12 01:00 PM
01/27/12 01:00 PM
Joined: Aug 2008
Posts: 4,070
Mo.
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What about the rear halo's u know the one that runs along the rear speaker tray i've seen them did in 3 Peace's instead of one tube is that legal? I'm getting a plan together to update my Cage......Thax.

Re: cage question [Re: racerx] #1165045
01/27/12 01:27 PM
01/27/12 01:27 PM
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Motor City
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6PKRTSE Offline
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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.
Re: cage question [Re: 6PKRTSE] #1165046
01/27/12 01:28 PM
01/27/12 01:28 PM
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Posts: 4,566
Motor City
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Another view.


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.
Re: cage question [Re: 6PKRTSE] #1165047
01/27/12 01:29 PM
01/27/12 01:29 PM
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Posts: 4,566
Motor City
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6PKRTSE Offline
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Motor City
Thru speaker tray.


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.
Re: cage question [Re: Crizila] #1165048
01/27/12 03:02 PM
01/27/12 03:02 PM
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Posts: 642
New Jersey
Craig Offline
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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
Re: cage question [Re: 6PKRTSE] #1165049
01/27/12 04:59 PM
01/27/12 04:59 PM
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Bitopia
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jcc Offline
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Quote:

Another view.




It hasn't been mentioned on this thread yet, but the main prohibition on sectioning a bar is the main roll bar hoop, correct?

And I am not a fan of the rear horizontal package bar halo pictured, mainly since there is no? continuing bar that transmits forces forward at the same level from the main hoop, which means to me, the main roll bar starts to collapse into the seat area on a hard hit?


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: cage question [Re: Craig] #1165050
01/27/12 10:48 PM
01/27/12 10:48 PM
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Az
Crizila Offline
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Crizila  Offline
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Az
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
Re: cage question [Re: Crizila] #1165051
01/27/12 11:29 PM
01/27/12 11:29 PM
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Crizila Offline
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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 ).

7040349-300cage.jpg (123 downloads)

Fastest 300
Re: cage question [Re: jcc] #1165052
01/28/12 12:05 PM
01/28/12 12:05 PM
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6PKRTSE Offline
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Quote:

Quote:

Another view.




It hasn't been mentioned on this thread yet, but the main prohibition on sectioning a bar is the main roll bar hoop, correct?

And I am not a fan of the rear horizontal package bar halo pictured, mainly since there is no? continuing bar that transmits forces forward at the same level from the main hoop, which means to me, the main roll bar starts to collapse into the seat area on a hard hit?




The rear is triangulated from everywhere. There are also are couple of other bars & gussets not visible in these pictures. We have done numerous 25.5 & 25.2 chassis' & have all past tech & certed.


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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