 rubber brake lines, rubber or braided |
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| jimkelly |
 Apr 28 2010, 06:34 AM
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#1
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Delaware USA  Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region  |
are braided that are DOT ok for street?
i know some tires are DOT but are for race only. jim attached is a sample of a brake line cross section that isn't gunked up. Attached image(s) 
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| 6freak |
Apr 28 2010, 07:01 AM
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#2
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MR.C Group: Members Posts: 4,740 Joined: 19-March 08 From: Tacoma WA Member No.: 8,829 Region Association: Pacific Northwest |
I would say yes ...
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| Root_Werks |
Apr 28 2010, 08:58 AM
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#3
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Village Idiot Group: Members Posts: 8,319 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest 
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I have yet to see any braided SS brake line installed correctly in my life. This includes the ones installed on my current 914. I will replace them with factory rubber lines soon.
If you don't pre-load the braided lines, the metal fibers will fatigue and break. That's the only source of the lines not busting through. SS braided lines IMO are for track cars where they get replaced and checked often. Rubber lines are install and forget. |
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| tat2dphreak |
Apr 28 2010, 09:11 AM
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#4
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region  |
QUOTE SS braided lines IMO are for track cars where they get replaced and checked often. Rubber lines are install and forget. (IMG:style_emoticons/default/agree.gif) I had the front brakes lock up on my first teener because I thought the braided lines the DAPO installed were good... they were the DOT approved braided lines, but they locked up on me... go rubber. |
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| jimkelly |
Apr 28 2010, 09:30 AM
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#5
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
ok - i will use rubber (IMG:style_emoticons/default/biggrin.gif)
thanks (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/popcorn[1].gif) |
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| dwillouby |
Apr 28 2010, 10:17 AM
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#6
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Member Group: Members Posts: 392 Joined: 27-December 02 From: Mt Washington, KY Member No.: 29 Region Association: None
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I have had braided lines on my car for almost 10 years. No problems.(Yet)
David |
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| Tom_T |
Apr 29 2010, 09:57 AM
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#7
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TMI.... Group: Members Posts: 8,318 Joined: 19-March 09 From: Orange, CA Member No.: 10,181 Region Association: Southern California
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QUOTE(jimkelly @ Apr 28 2010, 05:34 AM)  are braided that are DOT ok for street? i know some tires are DOT but are for race only. jim attached is a sample of a brake line cross section that isn't gunked up. Jim & FYI All - Whenever an auto part/product is marked as DOT Approved, then it's legal & okay for street legal use in the USA, whether brake lines, tires, headlights, etc. It means it's met the US Dept of Transportation's standards & regulations in effect at the time the part was produced, but doesn't speak to their reliability nor "freshness" since they could be older NOS parts & degraded by age &/or superceded by newer & more stringent standards/regs. |
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| Smitty911 |
Apr 29 2010, 10:16 AM
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#8
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Member Group: Members Posts: 294 Joined: 19-March 08 From: La Mirada, Ca Member No.: 8,830 Region Association: Southern California |
One thing to be careful about with the braided lines is - Torsion. They don't like to be twisted at all.
I tested the Front Landing Gear Wiring Harness of the new Composit Airliner and the clocking of the connectors played a signifcant role how many cycles the landing gear could cycle without frayed S/S. Smitty |
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| IronHillRestorations |
Apr 29 2010, 11:56 AM
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#9
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I. I. R. C. Group: Members Posts: 6,719 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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Rubber brake lines are the only way to go. They've worked on our cars for years. Advertising hype and bling factor may make the stainless braid lines seem more apealing, but the stock rubber lines will last you a long time without problems.
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| Root_Werks |
Apr 29 2010, 12:35 PM
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#10
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Village Idiot Group: Members Posts: 8,319 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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QUOTE(Smitty911 @ Apr 29 2010, 09:16 AM) One thing to be careful about with the braided lines is - Torsion. They don't like to be twisted at all. Smitty That's why you pre-load them when installed and why they belong on track cars only that are inspected often. As I've said before, never in my 20+ years wrenching on VW's and Porsche's have I ever seen a properly installed set of SS brake lines including the 914 I recently purchased. Installed properly and inspected 4 times I year, sure, you could get away with running them on a driver. But the benny of a slightly stiffer pedal isn't worth all that extra worry and work. (IMG:style_emoticons/default/wink.gif) |
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