Can anyone provide feedback regarding performance and/or install time? They claim to provide shorter stopping distances and eliminate sponginess. These "phantom" lines are poly-coated which is a great feature because it will protect the steel lines from evil road salt which is prevalent here in the Northeast during winter months.
Porsche Goodridge Phantom Stainless Steel Brake Line Set T14 GR37038BKC T14.GR37038BKC T14GR37038BKC | Pelican Parts
Goodridge Phantom Stainless Steel Brake Line Set $226.87. Call (310)626-8765. May Qualify For FREE SHIPPING. Parts# T14 GR37038BKC T14.GR37038BKC T14GR37038BKC.
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I have these but don't think they increase brake performance ie shorten braking distance. I do agree they do help with the sponginess. For daily driving, probably no diff to stock but for those that track, do B-roads etc, they should be able to feel the difference.
Do you recall the install time? Gotta factor that into my decision.
The big thing to add to steel lines is the
GT3
master cylinder
.
If you want to liven up your brake pedal without the crazy cost of a big brake kit...
Steel lines
And the
GT3
master cylinder
I have both these sitting here waiting to go in over winter.
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Part number in case anyone else wants to jump on the bandwagon
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I did these both when my Cayman was new to me and I was going overboard with farkles and mods.
I have a long history of changing out rubber brake lines for stainless steel in motorcycles. My 944 had already had it done when I got it.
The install was quite expensive for me, as I went to a Porsche indy race prep shop and they billed lots of time for it, said they needed the Porsche bleeder tool and reset computer, etc. I don't recall what the cost was, but I suspect they billed three hours at $175 an hour. I was billed something like $1300 for this job and the H&R lowering springs install, which I found outrageous. I have pushed these details out of my mind so I don't get an aneurysm.
However, the car drives really well, now. The stainless lines aren't nearly as noticeable as they are on a motorcycle. Porsche already uses hard lines for most of the travel, and the rubber/flexible parts are only like 8" long at each wheel. You just won't get enough swelling over that distance to notice. Motorcycles have three feet or so of distance, and you can notice the swap over that distance.
My take is that I am not unhappy that this mod was done. I needed brake fluid changed anyway, as I had no records of it ever having been done on a 10 year old car at the time. I might caution having low expectations for a lot of noticeable improvement. When you really stand on it, I can see that it feels like you have more braking power. Most of the time I am tiptoeing in traffic or under cruise control, so I rarely get to that point.
For me, probably the H&R springs and Cayman R alignment specs made the biggest difference to the car's performance feel.
Right.
This doesn’t give you ‘Better” brakes.
This gives you better pedal feel - less sponge.
If you want to step on the brake and your seatbelt to break ribs - you need a bigger wallet.
Please don’t get mad at me for saying this (to folks who have done it), but paying $1,300 to replace 8” of sturdy rubber brake hoses with stainless steel brake lines seems like an example of a “more money than brains” situation. 🤪
Easy tiger.... he paid $1300 for lines and springs installed, which I would assume also included an alignment.
Lines can be had for under $200
Install them when doing a brake fluid flush.
Cake.
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If you know how to bleed brakes, this is an easy install. I have done this on several different cars including my 08
Cayman S
.
Huh, interesting. The owner of the shop I used said that he had to use the
Porsche
computerized brake calibration computer to get it done properly. Probably BS. I didn't know any better. I do it manually on motorcycles just fine. Whatever, I am not using them anymore.
My large bill was in the majority the H&R spring install. They had a bear of a time getting the rear struts out, which I have heard is tough, but shouldn't be impossible for a so-called specialist shop with proper lifts. And they still messed up the interior trim pieces and didn't reassemble properly.
I don't recall what the brake
master cylinder
, flush and line install was from that total. I suspect it was $300 plus $100 for alignment.
I was quoted 1.5 hours of labor for a brake flush on my '08
Cayman S
, with the notation that the calipers have two bleeders (true). I'll still probably do them myself when the time rolls around to do that task.
