Brake Line Question

[mr1mrwun]

I'm doing research on my braking issues and I have a question that I haven't been able to answer in the forums I've been searching through. Is it feasible and/or safe to use -an hose (mainly PTFE) to replace the main brake lines? Just a thought. Haven't found anything regarding it.

 

[retorq]

Circle track cars do it, I thought about it but never did it on my Camaro, I would think there would be flex in the lines when you hammer the brakes.

 

[kcb37]

No

 

[SunlitComet]

contact http://www.classictube.com/ for a replacement line set.

 

[mr1mrwun]

Circle track cars do it, I thought about it but never did it on my Camaro, I would think there would be flex in the lines when you hammer the brakes.

I wouldn't think that would be a major issue if it were properly supported. Got any links on people doing this?

No

Care to elaborate??

contact http://www.classictube.com/ for a replacement line set.

Thanks for the info! Great fall back if my research turns up nothing.

However, I am looking into if its possible and safe to replace those hard lines with stainless wrapped ptfe hose. http://www.russellperformance.com/mc/brake_hoses/powerflex.shtml I came across this, and others, looking for parts and such. I know more then a few people use stainless steel brake line kits to go from the hard line to the caliper/piston. If collectively......approx 6' of the brake system can be used and trusted by so many........why not the whole system?

 

[SunlitComet]

No matter what a hose will slightly expand or contract. If you had a line all the way to the right rear wheel, the entire hose length might expand enough that your wheel cylinder would not receive enough volume of fluid to make it work effectively.

 

[kcb37]

That and the line is more prone to damage.
Longer stretches are not rated for that use either.
Short runs (frame to caliper) are fine, and needed. Without a redesign putting the calipers say right on each side of the front diff.
If the rear was an independent suspension the same could be done, and hard lines could be used the entire run.

 

[mr1mrwun]

No matter what a hose will slightly expand or contract. If you had a line all the way to the right rear wheel, the entire hose length might expand enough that your wheel cylinder would not receive enough volume of fluid to make it work effectively.

Ha! Just read a Q&A I found that said the same thing http://www.centricparts.com/files/White%20Paper%20Revisions%204-2012/Centric%20White%20Paper%20D3-2012-Stainless%20Steel%20Q&A.pdf lol. And I understand your point.

That and the line is more prone to damage.
Longer stretches are not rated for that use either.
Short runs (frame to caliper) are fine, and needed. Without a redesign putting the calipers say right on each side of the front diff.
If the rear was an independent suspension the same could be done, and hard lines could be used the entire run.

I understand why we have flexible hose at the corners. It's fuctionally necessary. Not trying to redesign/re-engineer anything. Just an idea I had to possibly improve the system. As for damaging the line, if this something I could do I'd run them in the same manner as the original lines. Haven't been under one of these in a while as I just bought mine about a week ago, but iirc the brake and the fuel lines are tucked away (somewhat) so they don't get damaged.

 

[SunlitComet]

the lines just mount to the frame no special covers or anything.

 

[mr1mrwun]

Okay....

Do you have any brake system pressure readings or figures by any chance....

 

[kcb37]

This is not something you should be doing.

Asking about pressure what do you think the ball park is for brake pressure?

 

[mr1mrwun]

This is not something you should be doing.

Asking about pressure what do you think the ball park is for brake pressure?

First off.......this is something I am THINKING about doing. What I AM doing is researching and getting opinions. In my head, this is still THEORY!!! Hence the research. HENCE the questions.....I am just trying to eliminate all possibilities!!! For MYSELF!

And no I don't know what the numbers are for brake pressure.........THATS WHY I ASKED! But just to amuse you, since I'm throwing darts in the dark anyway, based on what I've seen on gauges it can go upwards of 3000 psi. But since you want to bring up me bringing up pressure numbers I've found hoses that have 12000 psi burst limit. That's why I'm still asking!

 

[SunlitComet]

Several thousand psi.

---------- Post added at 04:42 PM ---------- Previous post was at 04:41 PM ----------

Please do not use hose to replace the metal lines.

 

[mr1mrwun]

Thanks for the info Sunlit. Like I said it's just an idea.


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[kcb37]

Yep, depending on the car and these I do not know specifically but 3,000 and up is about right.
Regardless of the burst pressure or the rated pressure this is something you should not be doing.

 

[zomeizter]

there is only one way to find out...but risk, that my friend, is inevitable