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Author: Subject: Roll bar, seat belts and stays
clbarclay

posted on 14/5/05 at 12:05 PM Reply With Quote
Roll bar, seat belts and stays

I am using a roll bar from MK with intergral upper seat belt mounts.

Should the roll bar stays go to the top of the main loop (the red line), or would they be better going to between the seat belt mounts (the yellow line)?






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ned

posted on 14/5/05 at 12:28 PM Reply With Quote
like the red line, much stronger overall imho, i don't think i've ever seen a rolbar braced the way you show with the yellow line.

Ned.

ps http://www.locostbuilders.co.uk/upload/cockpit%20bulkhead.jpg is what mine looked like

[Edited on 14/5/05 by ned]





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flak monkey

posted on 14/5/05 at 12:31 PM Reply With Quote
I would brace to the seatbelt mounting points to strenthen them and it will also make sure that the SVA man is happy that they are strong enough. I would say that if that seatbelt mounting is more than 2mm wall thickness then it wouldnt need braceing...but im not an SVA man...

Like ned says its more common to brace to the top of the roll bar. But if you did brace to the belt points then the roll bar should still be well strong enough in the event of a roll.

David





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TPG

posted on 14/5/05 at 12:44 PM Reply With Quote
Justfor referance my belts are mounted in this manner on the rollbar,It didn't cause any trouble at SVA.And my 'bar isn't braced





..Which was nice..

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Lars

posted on 14/5/05 at 01:54 PM Reply With Quote
I had the same decision to make a few weeks ago, and wasn't sure whether it is required even after reading the sva manual.
I have however seen several cars using the bar to mount belts without bracing, and I have now done the same.

It seems strong enough to me.

Lars

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Fifer

posted on 14/5/05 at 04:02 PM Reply With Quote
The red one is the way to go, it looks way better and there is no way that seat belt mount would fail on noit being braced, it looks well strong.
Looks quite high IMHO but guess that depends on the seats you are using

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clbarclay

posted on 14/5/05 at 06:08 PM Reply With Quote
I suspected the red stay was the one to go for.

The seat belt mounts are quite high, so the belts will be mounted on the under side of the bar.

Thanks all the same.

[Edited on 14/5/05 by clbarclay]






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chriscook

posted on 15/5/05 at 08:34 AM Reply With Quote
If you want your roll bar to work as a roll bar and not fold over your head then brace to the top.
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NS Dev

posted on 15/5/05 at 08:51 AM Reply With Quote
yup, red bar without question
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Mark Allanson

posted on 15/5/05 at 10:26 AM Reply With Quote
Thats what I did Rescued attachment Blast&Etched.jpg
Rescued attachment Blast&Etched.jpg






If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation

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wilkingj

posted on 15/5/05 at 09:01 PM Reply With Quote
My Viento has the Bracing to the top bar, ie your RED line.
Not the best of piccies, but ahows the point.


[img]/upload/DSCF0069as.jpg[/img]
If you cant see it, its in my archive.


[Edited on 15/5/2005 by wilkingj]





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2. Never take life seriously. Nobody gets out alive anyway.

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turbolag

posted on 16/5/05 at 01:27 PM Reply With Quote
Mark, that chassis looks so damn fine i've set it as my background!





If it ain't broke, you ain't fiddlin' hard enough!

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Mark Allanson

posted on 16/5/05 at 08:09 PM Reply With Quote
Gee chucks, thanks...





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