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Author: Subject: Roll over bar
caber

posted on 12/11/05 at 09:29 PM Reply With Quote
Roll over bar

Is one actually required for SVA?

Caber

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David Jenkins

posted on 12/11/05 at 09:31 PM Reply With Quote
No.

Next question?

If you do fit one though, they may examine how good it is (creases on the bends, how well it's fitted, etc.)

rgds,
David






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Triton

posted on 12/11/05 at 10:20 PM Reply With Quote
No but kinda makes sense to have one and weld it on rather than it be bolted.





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caber

posted on 12/11/05 at 10:52 PM Reply With Quote
Not if you don't intend to roll it! Right now I am looking at building a car for road rather than track and looking to simplify the build as much as possible for now

Caber

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Avoneer

posted on 12/11/05 at 10:56 PM Reply With Quote
Would look pants without one if you are building a 7.

Lolocost sell a simple one for £30 ish.

Pat...





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Triton

posted on 13/11/05 at 09:29 AM Reply With Quote
I agree with Pat on this, 7's without roll bars look pants and one that has been bolted on with 8mm rivnuts is just bigger pants





My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.

www.tritonraceseats.com

www.hairyhedgehog.com

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wilkingj

posted on 13/11/05 at 09:58 AM Reply With Quote
Roll Cage info (For Land Rovers!)

Firstly I have no experience or qualifications in Roll cage design, so my comments should be treated as those of an unqualified layman.
YOU need to check what you do to YOUR vehicle is safe.

The Roll Bar is a Safety Device to help prevent you ploughing the Tarmac with your HEAD.

Please treat its construction and mounting as if your life depended upon it... As this could well turn out to be true (Hopefully not)

If you are going to do a Job, do it properly, and correctly, or dont do it at all.

I know this is NOT Locost related... But there is some VERY useful info on Roll Cage construction and the joints / brackets seat belt mountings etc..
Its the Association of Land Rover Clubs Website, and their spec / design for a Land Rover..
OK Its not for a Locost... but the principles apply for the construction techniques. There are a lot of pages.. and it gives detailed drawings.

I agree... M8 Rivnuts are NOT an option. The Landy one is possibly overkill for a Locost.. Landys weigh in a 2 tons (ish). But best make it strong enough!. There is a lot of info on thses pages. Especially if you are designing and welding / mounting your own design etc.
Its worth a read.


Association of Land Rover Clubs Roll Cage Pages







1. The point of a journey is not to arrive.
2. Never take life seriously. Nobody gets out alive anyway.

Best Regards
Geoff
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chriscook

posted on 13/11/05 at 11:49 AM Reply With Quote
So who here does intend to roll their car?
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jonbeedle

posted on 13/11/05 at 04:47 PM Reply With Quote
quote:
Originally posted by Triton
I agree with Pat on this, 7's without roll bars look pants and one that has been bolted on with 8mm rivnuts is just bigger pants


I bolted mine on with 8mm bolts and nuts so I could get it chrome plated, does that count as pants?
Cheers
Jon





"Everyone is entitled to an opinion however stupid!"

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Volvorsport

posted on 13/11/05 at 05:46 PM Reply With Quote
it only needs to be one excursion , game over .





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getting dirty under a bus

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flak monkey

posted on 13/11/05 at 06:19 PM Reply With Quote
quote:
Originally posted by caber
Is one actually required for SVA?

Caber


No, and as such any fitted is not tested at all. Other than for sharp edges. It may be visually checked for strength if your belts are mounted to it.

There were pictures somewhere of a 7 that had been rolled and the roll bar was only held on with PU and bolts into rivnuts it had survived.

A bolted on bar is highly unlikely to fail (though I woulnt use rivnuts) since the tensile strength of even 8mm grade 8.8 bolts is very high, use four on each side and there is no chance of them breaking. If the bar is rear braced and bolted at the bottom of the chassis though the braces it wont got anywhere.

David





Sera

http://www.motosera.com

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