8 point roll bar

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j par said:
WOW!!?? Really ?? No one has pictures of the weld points of a roll bar in an a body?? Okay ?
Well it looks like I'll weld this in as I interpret the rules. No problem , I'll post pictures of what I do.
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That's pretty much how you do it; read, re-read the rule book, interpret what it means and how it applies to you. Certain points will be different for you than for others; you are eather taller/shorter which places the bar at a different point. Not that hard, though it is nice to have help. A lite tack on the bars allow for double checking of position before making it permanent.

Good luck.
 
Sidebar 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

Look at section 4:10 ROLL BAR

everyones is going to be a little difference due to size of driver..seat location

[ame]http://www.nhra.com/UserFiles/file/General_Regulations.pdf[/ame]
 
70aarcuda said:
weld points on the driver side bar? or?
Click to expand...
I'm more looking to see where the man hoop comes down and other people's a bodies and how they weld the main hoop to the floor? Where are they welded their back bars eventually too, near the back fender wells? And where's the bar eventually goes to on the front floorboard passing the driver? I do get I'll have to adjust the bar at the hoop higher or lower to go pass between my shoulder and elbow. I read the NHRA rules plenty of times and they don't need to be reposted like I'm stupid , I'm just dumb - I don't know :D a picture is worth a thousand words sometimes. But again no big deal I'll just do the best I can and post what I've done.
Have looked a lot on the internet and there's all kinds of cars out there but I'm just looking specifically how it goes into an a body.... thank you for any and all pictures and help as always......
 
j par said:
I'm more looking to see where the man hoop comes down and other people's a bodies and how they weld the main hoop to the floor? Where are they welded their back bars eventually too, near the back fender wells? And where's the bar eventually goes to on the front floorboard passing the driver? I do get I'll have to adjust the bar at the hoop higher or lower to go pass between my shoulder and elbow. I read the NHRA rules plenty of times and they don't need to be reposted like I'm stupid , I'm just dumb - I don't know :D a picture is worth a thousand words sometimes. But again no big deal I'll just do the best I can and post what I've done.
Have looked a lot on the internet and there's all kinds of cars out there but I'm just looking specifically how it goes into an a body.... thank you for any and all pictures and help as always......
Click to expand...

the shoulder elbow thing is kinda generic. you can get that part right, and still have it go farther "or less" forward, depending on your willingness to crawl over it. that being said, farther forward will prob. make the car a little stiffer. I swept mine down sharper so my old but could get in - out easier. didn`t want the swing out kit, even tho I bought it before hand.
 
I'll probably go with the sharper angle #1 so my old *** can get over and 2 because I like it welded over top of that part ofthe frame where the tranny is connected too. Oh , and thank you for offering the kit in the pm, but my crazy thinking AGAIN is it won't be as ridged.
 
When I put my roll bar assembly in I used an S & W kit. Never put one in before, am a welder of modest ability. Looked at others installations, got a few ideas and then went for it.

Upon recommendation from others, checked main hoop for square and twist, it wasn't square and it had some twist, easily corrected by somebody standing on one leg while I pushed, pulled, twisted on the other till it laid flat on the garage floor with no rock and tape measure said it was square. S & W supplied 6, 6x6 1/8 inch plates for mounting purposes, I went down to local steel distributor and bought 6 more plus some 2x6 strips.

For the main hoop, I set it kinda in position slipped the 6x6 plates under it, scribed around the plates so I could re position them after pulling out the hoop. Drilled mounting holes in the plates and thru bolted them to the floor pan using the additional plates, strips to sandwich the floor pan. Inside the car I also welded the plates to the pan, the hoop is a butt weld to the plate. The back bars intersected the structurals over the rear axle, on the back side of the arch, again plate, thru bolt, sandwich, weld. The short diagonals go between the hoop and the sub-frame connectors.

Just out of curiosity; what are you using for a welder?
 
Junior636 do u have any close up pics of dash around cage and what about front bars. This is how I wanted to do my sons. Was thinking of running fromt bars under fender
 
JBurch said:
When I put my roll bar assembly in I used an S & W kit. Never put one in before, am a welder of modest ability. Looked at others installations, got a few ideas and then went for it.

Upon recommendation from others, checked main hoop for square and twist, it wasn't square and it had some twist, easily corrected by somebody standing on one leg while I pushed, pulled, twisted on the other till it laid flat on the garage floor with no rock and tape measure said it was square. S & W supplied 6, 6x6 1/8 inch plates for mounting purposes, I went down to local steel distributor and bought 6 more plus some 2x6 strips.

For the main hoop, I set it kinda in position slipped the 6x6 plates under it, scribed around the plates so I could re position them after pulling out the hoop. Drilled mounting holes in the plates and thru bolted them to the floor pan using the additional plates, strips to sandwich the floor pan. Inside the car I also welded the plates to the pan, the hoop is a butt weld to the plate. The back bars intersected the structurals over the rear axle, on the back side of the arch, again plate, thru bolt, sandwich, weld. The short diagonals go between the hoop and the sub-frame connectors.

Just out of curiosity; what are you using for a welder?
Click to expand...
I'm using my uncles Eragon wire feed welder (miller).
The instructions said Jason you can't use your cheap Harbor Freight welder ! LOL
Thank you everyone for all the photos ! !!
 
j par said:
I'm using my uncles Eragon wire feed welder (miller).
The instructions said Jason you can't use your cheap Harbor Freight welder ! LOL
Thank you everyone for all the photos ! !!
Click to expand...

I fitted (shaped) my 6x6 plates to the floor,welded them, and also welded the side to the frame connectors that are in the floor, then just centered the hoop up.
 
Well back to work on the roll bar today. Hopefully I'll have some pictures to show tonight.
 
Well speak now or ..... lol
it's all tacked in. I'll ad the little gussets that came with the kit and I have a half dozen 3 1/2 inch gussets I picked up at the steel yard when I bought the stock for the frame connectors I made.
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Hoop needs to be within 1 inch of roof or 3 inches above drivers head too
 
Fst73_410 said:
What's the measures distance between yours? Mines almost 2.5... But everyone knows my story and getting cheated. So I'm ripping it out and getting it redone
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the ferthes is 1 3/4 from the metal roof support, but like 1 1/4 from the center part where i think the dome light would hang.
if I went up any ferther it would have been touching above the doors.
 
Yeah I think if you're physically as close as you can get, you're fine
 
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