Factory steel roll bar
Moderator: Miggs
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Re: Factory steel roll bar
I couldn't tell you Matt. He frequents this parish. Maybe if you line his palms with gold.
70T barn find...... to ST.
1998 C2 996 Kettle
1998 C2 996 Kettle
Re: Factory steel roll bar
any of you tried the custom drag racing chassis builders ? This will be a piece of p155 for them
https://www.robinsonracecars.com/
https://www.robinsonracecars.com/
James
1973 911 2.4S
1993 964 C2
2010 987 Spyder
1973 MGB Roadster
Its not how fast you go, but how you go fast
1973 911 2.4S
1993 964 C2
2010 987 Spyder
1973 MGB Roadster
Its not how fast you go, but how you go fast
Re: Factory steel roll bar
Barrie is putting this 904 rep together at the mo so is still trading. Unusually gonna get a four-cam rather than flat-6. There are contact details onmatteo68 wrote: ↑Thu Aug 04, 2022 9:04 amDave Is Barrie still trading / producing these as his website doesn’t seem to be working? If he is, can you send me his contact details please?stretch wrote:Mine is a Barrie Martin produced bar. Dimensions taken from his own original factory safari rally car.
http://www.technic-motorsport.com/ but I don't know if they're any good
The build thread is worth a gander
https://forum.porsche356registry.org/vi ... =4&t=47060
maverick
noun
1. an unorthodox or independent-minded person.
2. an unbranded calf or yearling.
Origin mid 19th century: from the name of Samuel A. Maverick (1803–70), a Texas rancher who did not brand his cattle.
noun
1. an unorthodox or independent-minded person.
2. an unbranded calf or yearling.
Origin mid 19th century: from the name of Samuel A. Maverick (1803–70), a Texas rancher who did not brand his cattle.
Re: Factory steel roll bar
The thread does say "Barrie is still building 904s. He has 6 in the build queue after mine. But he stopped taking orders for new builds a year or two ago. Barrie is 71 and it he completes on average one car every12 - 18 months."
maverick
noun
1. an unorthodox or independent-minded person.
2. an unbranded calf or yearling.
Origin mid 19th century: from the name of Samuel A. Maverick (1803–70), a Texas rancher who did not brand his cattle.
noun
1. an unorthodox or independent-minded person.
2. an unbranded calf or yearling.
Origin mid 19th century: from the name of Samuel A. Maverick (1803–70), a Texas rancher who did not brand his cattle.
Factory steel roll bar
Hugo 356 wrote: There are contact details on
http://www.technic-motorsport.com/ but I don't know if they're any good
The email address provided doesn’t work unfortunately.
'72 T 210 2176 (ex-Hawaii donor car for '72 M491 2.5 SR)
'72 S 230 0347 (two-owner tangerine unicorn)
'72 S 230 0347 (two-owner tangerine unicorn)
Re: Factory steel roll bar
Quality is very good,
In terms of installation, it went in pretty smoothly by all accounts, and was removed a couple of times during the shell restoration phase
Re: Factory steel roll bar
That’s good to hear. £566 for one on Carpoint’s eBay page doesn’t seem too bad to me for a quality item.
No diagonal support bar on yours then?
No diagonal support bar on yours then?
'72 T 210 2176 (ex-Hawaii donor car for '72 M491 2.5 SR)
'72 S 230 0347 (two-owner tangerine unicorn)
'72 S 230 0347 (two-owner tangerine unicorn)
Re: Factory steel roll bar
Ok. Did you have to cut it off or was it designed to be removed or reversed as required?
'72 T 210 2176 (ex-Hawaii donor car for '72 M491 2.5 SR)
'72 S 230 0347 (two-owner tangerine unicorn)
'72 S 230 0347 (two-owner tangerine unicorn)
Re: Factory steel roll bar
Hi Matt,
I need to get a roll bar too but have put it on the back burner for now to concentrate on the shell. I did some research and found the tube outside diameter was 35mm and the Centreline radius(CLR)of the bends was 270mm. I contacted a few roll cage manufactures and tube benders and most couldn't do the required CLR. T&T Tubecraft could do the bends but it was going to be £300 just for supply of the main hoop with bends. I'll try find some time next week to see if I can get the bends done at a more sensible price.
Rich
I need to get a roll bar too but have put it on the back burner for now to concentrate on the shell. I did some research and found the tube outside diameter was 35mm and the Centreline radius(CLR)of the bends was 270mm. I contacted a few roll cage manufactures and tube benders and most couldn't do the required CLR. T&T Tubecraft could do the bends but it was going to be £300 just for supply of the main hoop with bends. I'll try find some time next week to see if I can get the bends done at a more sensible price.
Rich
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Re: Factory steel roll bar
.
Actually the diameter of the original CDS tubing was 40mm rather than 35mm ...
.
Actually the diameter of the original CDS tubing was 40mm rather than 35mm ...
.
Andy
“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
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Re: Factory steel roll bar
Agree with Andy: 40mm O.D. drawn tube not the cheaper welded.Lightweight_911 wrote: ↑Sat Aug 06, 2022 10:55 am .
Actually the diameter of the original CDS tubing was 40mm rather than 35mm ...
.
Rust Never Sleeps
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Re: Factory steel roll bar
Got to be worth using the right steel, cds.
Is 40mm a standard size?
I think 41.3 mm is.
A lot of CDS are old imperial sizes
Is 40mm a standard size?
I think 41.3 mm is.
A lot of CDS are old imperial sizes
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
- MikeB
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Re: Factory steel roll bar
I know that the RAC MSA used to specify CDS for roll bars, and probably still do, so if nothing else it means should there be any future competition use you have the basis of an acceptable structure, that any additional tubing can be added to.
Cheers
Mike
RS Rep 3.0 on Webers
Mike
RS Rep 3.0 on Webers
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Re: Factory steel roll bar
True.
The Motorsport uk (RAC/MSA) stipulate the tube dia and the tube wall thickness in order to comply with the regs known as the ROPS, roll over protection system.
The main hoop in question here I think is 40mm minimum and certainly CDS.
Details on the Motorsport UK web site under Saftey. Section K.
Just looked in my 2020 edition of the Blue Book, forgotten how badly written it is. Tube dia is 40mm min.
The main hoops in my 911 and my LOLA are 41.4mm dia cds.
The Motorsport uk (RAC/MSA) stipulate the tube dia and the tube wall thickness in order to comply with the regs known as the ROPS, roll over protection system.
The main hoop in question here I think is 40mm minimum and certainly CDS.
Details on the Motorsport UK web site under Saftey. Section K.
Just looked in my 2020 edition of the Blue Book, forgotten how badly written it is. Tube dia is 40mm min.
The main hoops in my 911 and my LOLA are 41.4mm dia cds.
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9