Roll Cage/Door Bar Compromise

[Bugzilla]

Those clam shell style clamps look really nice. Who made yours? I've already installed mine from chassisworks, but I like how yours has a slight bend in the tubing. I love the engine hoist through the window.

Sorry for the late response. I got mine from CBM Motorsports. They were like $40 each pair.

And ya the engine was a blast to put in. Through the door first (which barely made it through the cage), then the picker though the window. Hope it wont need to come out for a long time.

[nokones]

If I was doing what you are trying to accomplish, I would call a licensed scrutineer for a sanctioned body of a club and run this by him/her to see if that is the safest thing to do. If they say it is not safe, find out why. The standards used by the various sanctioned bodies, such as, SCCA or NASA, etc. are essentially the same. In some cases, it is safer to run without a cage rather than running with an unsafe cage. Unsafe cages can cause more harm than no cage at all, even on the street.

I could be wrong, a pinned bar may not be compliant thus, an unsafe structure.

[MTZ28]

If I was doing what you are trying to accomplish, I would call a licensed scrutineer for a sanctioned body of a club and run this by him/her to see if that is the safest thing to do. If they say it is not safe, find out why. The standards used by the various sanctioned bodies, such as, SCCA or NASA, etc. are essentially the same. In some cases, it is safer to run without a cage rather than running with an unsafe cage. Unsafe cages can cause more harm than no cage at all, even on the street.

I could be wrong, a pinned bar may not be compliant thus, an unsafe structure.

Thanks for the input. I'll do some more research and make some calls.

[MTZ28]

Finally figured what I'm going to do, concentrate on body to tubing clearance. Do a road race style door bars that sort of mimics the tiger cage. Keep my removable harness bar. This will be more than sufficient for anything I want to do. I will accomplish my goal of stiffening and making my t-top a lot safer. Thanks for all your comments.

[Poorhousenext]

Little late on this, but I'm looking at building a cage that is removable and or parts of it are. My main requirements for the removable joints, is not only are they functional but that they be round and same diameter as tubing I'm using as well as being certified by most Sanctioning bodies.

What I found to use are these, by TMR.They make both interlocking and non-interlocking one.


http://www.tmrcustoms.com/store/inde...index&cPath=32

[67 455 Bird ragtop]

Little late on this, but I'm looking at building a cage that is removable and or parts of it are. My main requirements for the removable joints, is not only are they functional but that they be round and same diameter as tubing I'm using as well as being certified by most Sanctioning bodies.

What I found to use are these, by TMR.They make both interlocking and non-interlocking one.


http://www.tmrcustoms.com/store/inde...index&cPath=32

Thanks for posting this link. I have been looking for these for a while.

[MTZ28]

Thanks for posting this link. I have been looking for these for a while.

I second that, TMR offers some great tools/parts.

[bovey]

I second that, TMR offers some great tools/parts.

I don't live far from TMR and have been to a couple open houses at their shop. They were a little confused when a road-racer showed up at their door. Their parts are well crafted and they offer some really smart designs. They also sell bags of weld-on wire tie-downs that are super handy.

[MonzaRacer]

When I helped a friend do a cage we used a grinder he had that ground out roof structure same diameter as upper halo bar, we then put the bar up IN the roof structure, and we tucked the side bars inside the b pillars, our rear cross bar had milled catches from solid bar stock. We used a heavy DOM sleeve, welded a spring latch where the sleeve slides over the catch. Then we used moroso quick pins to hold the sleeve in place. We did door bars similar. All bars were actually married to body structure and honestly the car was even stiffer. I'll see if I can find pics.

[HandOverFist]

'67 El Camino - NHRA legal to 9.99