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CJ6 Rollcage, gonna pull the trigger...

Discussion in 'Early CJ5 and CJ6 Tech' started by Boyink, Nov 19, 2004.

Page 2 of 2
  1. Nov 19, 2004
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
    Joined:
    Sep 20, 2002
    Messages:
    6,197

    Thanks for the input...

    Keep in mind...the frames on these old Jeeps were designed to flex. It's not the "bad thing" everyone unfamiliar with the concept thinks it is, the frames are simply considered part of the suspension. Adding frame tie ins will stiffen one section of frame, while allowing the rest to still flex, which means frame cracks (worse with the longer CJ6 frame). Tying to the frame eventually means a fully boxed frame, and I don't intend to go there.

    With the seat and seat belt mounts incorporated in I'm not as concerned about hitting the frame - in the worse case scenario of cage seperating from the body the occupants will be entirely secured within the 'cage.

    I've rolled a Jeep with the cage tied only to the body, and it held up just fine - but will go with Jim's idea of larger baseplates and sandwiched in.

    There will be bars alongside the front seats - just lower than your pic shows (No way I'm blocking the doorway like that...I'd never hear the end of it from MsBoyink..;)) The seat tie-is will connect to those bars.

    Gussets might be nice.

    I think it's easy to get carried away in the name of safety...but again, I don't want a Jeep that looks like a jungle gym has landed on it...;)
     
    Boyink, Nov 19, 2004
    #21
  2. Nov 19, 2004
    XJ_Ranger

    XJ_Ranger Tide rocks my socks off

    Lincoln, NE /...
    Joined:
    Nov 14, 2004
    Messages:
    25
    interesting, thanks for enlightening me. ill have to think about that...
     
    XJ_Ranger, Nov 19, 2004
    #22
  3. Nov 19, 2004
    LWB

    LWB ..they call me "Cooter"

    Chicago
    Joined:
    Feb 25, 2003
    Messages:
    206
    Those gussets tend to take a finger or three off in a roll.

    Remember- if it is a comfortable place to put you hand, that is probably what you'll be grabbing when you go over. (This is why I'm so hard on people in my trail runs that like to keep their hand on the rollcage while 'wheelin.)

    If you use a good quality tubing for the cage, and bend it with the correct equipment, you shouldn't need those gussets.

    Not that I'm proud of it, but my TJ suffered both a 8' drop onto the pass side of the cage and then a violent 3 1/2 turn roll to the right on the same cage and it held up fine. (I am building a new one now, though)
     
    LWB, Nov 19, 2004
    #23
  4. Nov 19, 2004
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,472
    I would agree with the larger mounting surfaces. I use large angle iron over the fenders. If you look at my son's pics you can see where in the forward roll it wrinkled the angle iron, but it held. All of my cages have mounted to the body and have not had an issue with it. If you design it that way and take the limitations it imposes into account - it will be fine.
     
    Warloch, Nov 19, 2004
    #24
  5. Nov 19, 2004
    XJ_Ranger

    XJ_Ranger Tide rocks my socks off

    Lincoln, NE /...
    Joined:
    Nov 14, 2004
    Messages:
    25
    heres kinda an off-topic addition, but it seems that PORC is giving away TJ cages... maybe you can modify that cage to fit your rig....

    check it out!
    PORC
     
    XJ_Ranger, Nov 19, 2004
    #25
  6. Nov 19, 2004
    66cj5

    66cj5 Jeep with no name

    NorthWest Indiana
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    Sep 10, 2003
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    2,084
    like the look of stage 2 myself..
     
    66cj5, Nov 19, 2004
    #26
  7. Nov 19, 2004
    BlueFlu

    BlueFlu past owner of some ecj5's

    Hermitage, TN
    Joined:
    Jan 21, 2004
    Messages:
    1,552
    Mike looks like a plan.
    On the bars that come beside the seats.
    Are you making them straight - or angle down toward the front / kinda like that?
    I've had drag cars with the side bars and have found (at least for me) the angled ones are best for entry and exit. Had both in the past.
    Another thought, have them build you a custom over head console as well. Heck build it yourself out of alum.
     
    BlueFlu, Nov 19, 2004
    #27
  8. Nov 19, 2004
    gte636p

    gte636p Member

    smyrna, Ga
    Joined:
    Sep 23, 2002
    Messages:
    492
    interesting price ont that tj add on...

    just going to ask if you're going to put padding on it and, if so, what type? i've got a quote for my stuff and have started looking at the padding $3.00 for 3' seems nice, but what's the sf45 stuff? judging by the price it would be better than the other stuff and i don't really want to skimp on something that's gonna be there to keep my noggin from hitting the metal full force if i ever roll. anyone have any experience on this stuff?
     
    gte636p, Nov 19, 2004
    #28
  9. Nov 19, 2004
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
    Joined:
    Sep 20, 2002
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    6,197
    Padding - yes. Not sure what yet. Last time I bought rollbar padding I could buy pre-cut lengths from Dick Cepek that had vinyl covers with a velcro seam.

    Not sure if that type of thing is still available.
     
    Boyink, Nov 19, 2004
    #29
  10. Nov 19, 2004
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
    Joined:
    Sep 20, 2002
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    6,197
    Hope to have them follow the contour of the door. Here's a pic I stole from Timmy. Looking at the 6, I think the side bars will overlap into the doorway 1" or so, but I can live with that.

    I like how the Tuffy overhead lets you lock stuff up into the console...will probably just go that route. Be tough to build that.
     
    Boyink, Nov 19, 2004
    #30
  11. Nov 19, 2004
    53Flattie

    53Flattie Intigator

    Easley, SC
    Joined:
    Sep 23, 2002
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    ;)

    As I was reading this post, and the comments about following the door openings, I was getting ready to post that same picture of the flattie!

    A side note about the "sandwich" plates. Good idea - I used those on the flattie. But someone told me to use two differend size plates. If you use the same size plate, the edges can act like a pair of scissors and slice right through the sheet metal in a roll. In reality - like you said, since the seats and belts are tied to the cage, even if it seperated completely from the body, you'd still be protected. But, you have to make 4 cuts for the bottom plate anyway - may as well make it bigger since it's no extra work.

    I like your design Mike - simple, yet effective. Looking back, the flattie looks too much like a jungle gym... With it's overall "theme" it's not too out of place, but it would look bad on your '6 - IMO.
     
    53Flattie, Nov 19, 2004
    #31
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