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Brake Lines, which do you prefer?

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Old 11-04-2015, 11:48 AM
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FREAKINHEAT
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Default Brake Lines, which do you prefer?

Does everyone go with OEM or after market for everyday road use? When I say after market I do not mean the steel braided lines, as I have read that there is no benefit for those on a regular road use. Thanks.
Old 11-04-2015, 01:44 PM
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ROG100
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Stock lines are OK and available OEM - Fronts are about $75 each and rears are $35 each.
We sell complete sets of SS braided for $85.
You can also buy Aeroquip sets of hoses from Mark or Greg for $160 ish.
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Old 11-04-2015, 01:50 PM
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dr bob
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The Goodridge braided lines participated in a pedal firm- up on my street-only car. Vs the 90k plus 20 years on the originals. A worthwhile improvement IMO.
Old 11-04-2015, 01:52 PM
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GlenL
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Get the rubber lines. OEM or what?! I've never thought to care.

The SS lines are prone to aging far faster than the rubber lines. I've got them on one car and replace them every 1-3 years. Went with new rubber on the other to save money and hassle, long-term.
Old 11-04-2015, 03:58 PM
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OEM versus any other manufacturers. I was looking for suggestions on which are good lines and which ones to stay clear of.
Old 11-04-2015, 05:54 PM
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On the fronts there is only Porsche.
Rears are Ate OEM or Porsche. Not a lot of manufactures making 928 brake hoses when most use after market PTFE with SS Braided sheath..
Old 11-04-2015, 05:58 PM
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The SS lines are prone to aging far faster than the rubber lines.
Glen - is that because you are tracking your car. I have had PTFE w/SS braid hoses on my cars for years with zero issues. PTFE hose will out last and outperform rubber 10x over. SS braid is only a protection cover and end thrust restraint.
Old 11-05-2015, 11:32 AM
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I bought SS lines from Roger when I rebuilt my calipers and replace the pads in my '80. They did help some with peddle pressure.
Old 11-05-2015, 11:55 AM
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Originally Posted by ROG100
Glen - is that because you are tracking your car. I have had PTFE w/SS braid hoses on my cars for years with zero issues. PTFE hose will out last and outperform rubber 10x over. SS braid is only a protection cover and end thrust restraint.
Call it "urban" legend if you will, but stainless is brittle and PTFE creeps. The failures modes are the covering wires breaking and the inner tube coming off the fitting.

A problem is that the DOT standards were written around rubber lines and the tests don't inflict fatigue on the hoses. I looked them up. They test burst pressure and flexibility but there's no testing for thousands of pressure cycles or use in cold climates.
Old 11-05-2015, 07:38 PM
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I admit that I looked carefully at the flex especially on the fronts, and fitted up some tubing over the first few inches of the braided section below the crimps so the flex wouldn't be so localized. Weapon of choice for me was some poly ribbed wiring cover, the split tubing stuff, held on with zip ties top and bottom. The lines are inspected at least annually.

I was doing a whole brake system refurb, part of which included purging some fugitive air from the system. I take the blame for putting the air in there, BTW, during an annual fluid flush. Anyway, pedal was a little soft and a little low. With the hoses and a bunch of intensive backwards-bleeding section by section, edal is very firm and right at the top of the travel range for engagement. So I can give some of the credit to the new hoses.

Nte that the factory hoses aren't a lot different from the braided SS ones -- They just have another rubber covering over the braded reinforcement, and an extra layer to swage under the fitting. I'd have no issues with either the stock or the Goodridge. Sounds like there are other choices now through Greg and Mark.



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