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Old 09-18-2006, 06:43 PM   #1 (permalink)
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Tall unsupported shock towers/hoops

Hi guys. I'm trying to design some shock towers or hoops for a rear coilover application. Because of some design limitations I can't support the top of the hoop at all. So I need to figure out how I can hang these off of my frame, go out and up and be able to have something strong enough to handle me completely beating the shit out if it (high speed jumps, etc.).

So I was hoping somebody would be able to post up some examples of what they have done and how well it's held up. If you can also tell me what kind of driving you do, that will help me gauge your your response.

Thanks all!!!!

Jack
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Old 09-18-2006, 08:19 PM   #2 (permalink)
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Posting a pic of your "limitations" might help others give you some ideas. Your question is rather vague.
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Old 09-18-2006, 08:50 PM   #3 (permalink)
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Place the tabs on the underside of the hoop and mount your coilovers as close to the same linear plane as the hoop legs as possible... Essentially try to place the force being applied as close to the center of the hoop as possible. The further you move out from this center, the more you multiply the leverage being place on the top of the hoop... ie: Try to get away with the absolute least "up and out"... After that, go to town on your gussets. Other suggestions... BUMP STOPS. Shock bottoming puts some serious abuse on hoops and tabs.
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Old 09-18-2006, 09:12 PM   #4 (permalink)
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Thanks guys. I don't have any pics but basically I need to come up off of the frame a good 15 to 18" and not support the top of the hoop at all.

Shock alignment is a good point and I will pay special attention to that.

I'll be running bumpstops for sure to make sure that I don't kill the shocks.

Thanks for the replies.

Jack
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Old 09-19-2006, 03:01 AM   #5 (permalink)
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I would be running limiting straps, too.
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Old 09-19-2006, 08:21 AM   #6 (permalink)
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Can you put some support bracing off of the tubing you used to support the front clip when you removed the core support?

That's what I'm planning to do with mine. I dumb lucked into a nice set of Fox shocks, and my F250 mounts aren't gonna work, so I'll be building a hoop and bracing it to the tubing. I'm also going to add a spreader or two across the motor to keep from squishing it in case of a rollover.
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Old 09-19-2006, 12:16 PM   #7 (permalink)
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Jack,

Can you go from the coilover hoop out to the cage instead of across to the other mount?? Dont know if this will have a cage in the back or if you are shooting the hoops up through the bed.

Dane
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Old 09-19-2006, 01:51 PM   #8 (permalink)
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Even if you can't support them at the top of the hoop, try to build a 3rd dimension into it even if it is on the lower sections of the hoop "legs"
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Old 09-19-2006, 03:59 PM   #9 (permalink)
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This isn't for my Bronco. I setup my cage to have tie-ins for the hoops for support.

Also, an engine crossmember and such is exactly what I can't do. That's my design limitation.

At this point I'm planning on using some 3/8" plate that is turned perpendicular to the frame for strength. It will have attachment to muliple dimensions of the frame (top and sides) for extra strength.

I was hoping somebody had some pics of what they had done in the past but I think in the new world of tube buggies this isn't such a concern anymore (who the hell would want to run a full bodied rig with a back seat anymore?

Anyway, thanks guys for the help.
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