Roll Cage/Hoops - Any new designs?

Roll Cage/Hoops - Any new designs?

Author
Discussion

Matthew Poxon

5,329 posts

173 months

Wednesday 30th November 2016
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T4NGO said:
You may! But I dont know wink. It was advertised in Sprint and I went and bought it with harnesses and seats, but never fitted those. The guy had in his Tamora also before. Was from Swindon way and think his Tamora was silver? Bespoke then fitted it for me. I'll get some better pics or if you need you can come over an measure up?
LOL. I do really like the look of that, I know Andy race used to have a bolt on bar on his 'monster griff' Really good idea as I agree the rollbar is not really high enough but of course you need the roof still to fit. Ideal solution for a road car with occasional trackdays thrown in.

CaptDale

6 posts

90 months

Tuesday 27th November 2018
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Engineer1949 said:
here you go

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr


john
Wow those are amazing hoops.

rev-erend

21,415 posts

284 months

Friday 30th November 2018
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True work of art but no padding at all and would do a lot of damage to your head if you had a crash without a helmet on.

LongBaz

2,090 posts

217 months

Friday 30th November 2018
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I am looking for TR Lane type roll bar if anyone has one.
Thanks
Barrie

bobfather

11,171 posts

255 months

Saturday 1st December 2018
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LongBaz said:
I am looking for TR Lane type roll bar if anyone has one.
Thanks
Barrie
I had a TR Lane bar. They steal too much leg room and are rather short. The tubing is made of the right grade material but they were never tested. Sold mine a couple of years ago

phazed

21,844 posts

204 months

Saturday 1st December 2018
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Your’s was the original useless one.

They modelled the later one on my car.

It gives full legroom and is at max height.


phazed

21,844 posts

204 months

Saturday 1st December 2018
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Front view.


Dominic TVRetto

1,375 posts

181 months

Saturday 1st December 2018
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I have always wondered whether a form of semi-side impact bar could be effected by welding/bolting a straight length of tube forwards from the rollbar "upright" diagonally downwards to halfway along the outrigger.

IE. just inside the door, from the "shoulder" of peters seat to the floor somewhere around the leading edge of his seat base.

It looks like the is just enough gap between seat and door, and yes, it would impede entry a little - but would not get in the way of window usage, and would provide body protection in the event of a side impact across the trailing edge of the door...

It would need padding, but they do already...

Dom

geopetrolhead

263 posts

97 months

Tuesday 1st August 2023
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QBee said:
I fitted a Rollcentre Racing hoop to my car several years ago. It clamps onto the chassis, so can be unbolted for body off restorations. Obviously, not being welded in it is a million miles off FIA approved. It sits high enough to give head protection, squeezing in just under the targa hoop, but is behind the seats, thus avoiding skull on cage collisions.

Hopefully you can see it behind my seats. I was half way through a Tuscan seat install at the time



Edited by QBee on Saturday 26th November 16:49
A very old post but this is exactly what I want installed on my Chimaera 450 SC, I have Tuscan seats also.

geopetrolhead

263 posts

97 months

Tuesday 1st August 2023
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T4NGO said:
I know this is in my Tamora, but similar could be done? The top bar is removable. Roof goes up, but on a track day roof down and add bar on.

Seems a good solution but how much would that clamp on bar stand up in a roll over situation ?

geopetrolhead

263 posts

97 months

Tuesday 1st August 2023
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RobXjcoupe said:
I bet the windscreen surround would collapse anyway if the trev flipped. No crash testing on these cars. If you want a safety cage you need a support at the a pillar and across the windscreen in conjunction with any rear fitted hoops. That way you know in a roll over crash the drivers space won't be compromised
Yes this was my thoughts exactly!

Classic Chim

12,424 posts

149 months

Wednesday 2nd August 2023
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It doesn’t bare thinking about. Your hope would be the top of the engine bares the weight of the front of the car as it smashes into the ground between you and roll hoop whilst upside down giving you a small survival area although I’m sure the windscreen surround will have given way at this point.

Most two seat sportscars would suffer the same fate. Ones with engines in the rear would be very susceptible!



Classic Chim

12,424 posts

149 months

Wednesday 2nd August 2023
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It’s an agonising conundrum is roll hoops.
On the one hand you absolutely want one.
On the other you see as much danger to occupants heads in other more mundane accidents because your not wearing helmets most of the time.
The issue with TVR is the lack of space and how close the hoop has to be to drivers head to offer enough headroom to make it viable.
As I don’t go on race tracks with my Tvr lol I find this constant risk not worth any benifit it actually offers me in a rollover crash.
I’m more inclined to fit one just to add stiffness than any medical benefit biggrin