Pre-Bent Brake Lines for 510?

Suspension, including wheel, tire and brake.
datsun5104dr
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Pre-Bent Brake Lines for 510?

Post by datsun5104dr » 19 Feb 2014 10:00

I've been looking all over. Can't seem to find a company that has these brake lines pre-bent already... Only found pre-bent brake lines for the Z models... Input?
-Mike
'68 Datsun 510 4DR

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okayfine
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Re: Pre-Bent Brake Lines for 510?

Post by okayfine » 19 Feb 2014 10:57

None. There have been rumors of group buys off and on, but everyone doing brake lines in the Project forums are bending their own.
Because when you spend a silly amount of money on a silly, trivial thing that will help you not one jot, you are demonstrating that you have a soul and a heart and that you are the sort of person who has no time for Which? magazine. – Jeremy Clarkson

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Re: Pre-Bent Brake Lines for 510?

Post by datsun5104dr » 19 Feb 2014 11:00

okayfine wrote:None. There have been rumors of group buys off and on, but everyone doing brake lines in the Project forums are bending their own.
figured. thanks!
-Mike
'68 Datsun 510 4DR

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Re: Pre-Bent Brake Lines for 510?

Post by Cmac » 20 Feb 2014 06:33

Mario at TSR has a stainless brake line kit.

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Re: Pre-Bent Brake Lines for 510?

Post by SteveEdmonton » 02 Mar 2014 19:51

Yes and no. Next best thing to pre-bent is cunifer lines-- copper/nickel alloy. They come in a coil and they're soft enough to be bent by hand. That's how I installed them in my MG some years ago. I ordered a set from the UK for my 510 last fall and used a tubing bender this time to get more-even bends. Worked great, slick & easy install.

Two benefits to cunifer lines as opposed to steel: the brass unions don't corrode in place. And the copper-alloy line doesn't rust from the inside out the way steel ones will.

As opposed to stainless steel, they're a snap to bend & install.

From what I've read, cunifer is standard procedure in Europe, including lots of high-end cars. For some reason-- which is still opaque to me-- they haven't caught on here in N America. In fact I gather some people consider them illegal, or dangerous, or both. My limited experience suggests they're totally fine... and logic, to me, supports this.

Check out a thread from Sept 2013 about the same subject, including several posts about the set I ordered from Automec in the UK: viewtopic.php?f=29&t=25982&p=222099&hil ... er#p222099

Automec used me as a guinea pig for getting the dimensions right for a set for the 510 (LHD). I think they should be able to make them fit well for you, if you decide to go that route.

Steve +
'71 4-door
'74 MGB-GT
'04 Miata

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Re: Pre-Bent Brake Lines for 510?

Post by datsun5104dr » 04 Mar 2014 09:33

sounds good. will contact them soon. thanks for the info!
-Mike
'68 Datsun 510 4DR

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Re: Pre-Bent Brake Lines for 510?

Post by zKars » 04 Mar 2014 14:00

The Cunifer tubing is first rate. I've been using it for years for brake and fuel lines. Not only is it soft, but if you buff it with metal polish, it shines up right pertty!

The best on-line price I've found for 25ft rolls is from BelMetric of all people. It's Just under $40 US for a 25 ft roll.

https://www.belmetric.com/bl31625-coile ... ath=17_633

Other places are typically 1.5 to 2 times this price. ($60 at FedHillUSA, and ebay). Belmetric also has greate JIS spec metric hardware. Like 8x1.25 nuts that use a 12mm wrench! They have an impressive array of Metric hardware.

If anyone knows of a Canadian supplier for Cunifer, speak up!

Actually I do know! http://www.greggdistributors.ca is a brakeQuip dealer. Their cataloque looks pretty complete.

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Re: Pre-Bent Brake Lines for 510?

Post by Byron510 » 04 Mar 2014 16:54

Just budding in here - but I think the fittings we want are M8X1 thread pitch - No?

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Re: Pre-Bent Brake Lines for 510?

Post by okayfine » 04 Mar 2014 17:50

Brakes should be M10x1.0
Because when you spend a silly amount of money on a silly, trivial thing that will help you not one jot, you are demonstrating that you have a soul and a heart and that you are the sort of person who has no time for Which? magazine. – Jeremy Clarkson

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Re: Pre-Bent Brake Lines for 510?

Post by Byron510 » 04 Mar 2014 18:05

My mistake- you're right Julian - I just remembered they were 1mm fine pitch from when I did the Greg Terry car.

I'd love to get my hands on this stuff and give it a try - I guess that'll wait for the next project.

But I'm curious, if this stuff is so soft, what kind of line pressure can it hold compared to the standard steel line?

Likely it's irrelevant, but worth asking.

Byron
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Re: Pre-Bent Brake Lines for 510?

Post by zKars » 05 Mar 2014 07:42

So Byron can sleep tonight, Fed hill posted a little document with the burst specs for Cunifer.

http://www.fedhillusa.com/webnuts/burst.pdf

I think it's ok. They also state somewhere in their FAQ's that many OEM's have been using it for a long time.

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Re: Pre-Bent Brake Lines for 510?

Post by Byron510 » 05 Mar 2014 11:46

It's always worth looking into.

From what I see, the Cunifer tubing is a lower strength tubing - but the real question is - what's really required? I'v ebeen told 2000 psi is what is really utilized in a car - but that was not written down anywhere.

Both the Cunifer and AGS tubing I used on the Greg Terry car are 3/16X.028 tubing. The Cunifer has a working pressure of 3200 psi, the AGS tubing has a working pressure of 4500 psi - burst pressure is 17000 and 17900 respectively.

One would say close enough.

So while I was at it, I looked up the 316L stainless tubing I used in the Bronze car - 5400 psi working pressure - I couldn't find a burst pressure but I'm sure it's way up there.

Just for fun I posted the results.

Byron (sleeping well at night ;-) - thanks)
Attachments
AGS 300 Series Brake Line.jpg
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FedHill CNF-3 tubing.jpg
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Stainless tubing.jpg
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Love people and use things,
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Re: Pre-Bent Brake Lines for 510?

Post by datsun5104dr » 23 May 2014 07:25

zKars wrote:The Cunifer tubing is first rate. I've been using it for years for brake and fuel lines. Not only is it soft, but if you buff it with metal polish, it shines up right pertty!

The best on-line price I've found for 25ft rolls is from BelMetric of all people. It's Just under $40 US for a 25 ft roll.

https://www.belmetric.com/bl31625-coile ... ath=17_633

Other places are typically 1.5 to 2 times this price. ($60 at FedHillUSA, and ebay). Belmetric also has greate JIS spec metric hardware. Like 8x1.25 nuts that use a 12mm wrench! They have an impressive array of Metric hardware.

If anyone knows of a Canadian supplier for Cunifer, speak up!

Actually I do know! http://www.greggdistributors.ca is a brakeQuip dealer. Their cataloque looks pretty complete.
any idea what the wall thickness is on the belmetric copper nickel brake lines? i called them and they're not sure either...
-Mike
'68 Datsun 510 4DR

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Re: Pre-Bent Brake Lines for 510?

Post by heywier427 » 05 Aug 2014 08:01

Hi Guys,

Was reading up on the Cunifer tubing and have a question for you.

In the link above the 3/16 tubing is $38.00. @25' roll.

I also would need M10x1x4.75 ends.

I see that 3/16 and 4.75 are the same diameter, but if you look at the 4.75 Cunifer tubing, it cost $67.00 for a 5 meter/ 16' roll.

What do you think that's about?

Just want to make sure I'm buying the correct diameter/fittings.

Thanks,

Tom.

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Re: Pre-Bent Brake Lines for 510?

Post by KoHeartsGPA » 05 Aug 2014 09:07

I used this one, and bought the fittings at O'Reillys in packs of 4, the roll of line was $30 and fittings I don't remember honestly :-(
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Diego.

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