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Discussion Starter #1
Hi,

Im doing the 991S caliper front brake upgrade with Gyrodisc, and rear brake upgrade with gyrodisc (just rotors).

I need to change the front brake lines for the 991S (longer), so I may change them to SS at the same time.

Can you please recommend me a good brand/place to buy the 991S SS front brake lines, and 981 GTS rear SS brake lines?

Is it possible to buy just the front? or do they always sell them as a kit (Front+rear)? I will need 991S for the front, and 981 for the rear.


Thanks!
 

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See Lemon at Schnellautosports.com. He's a sponsor here and has all the pieces you need.
 

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Discussion Starter #3
I know, but the problem is they sell the kit for front+rear... I need 981 rear, and 991S front. I would have to invest basically on 2 kits (double).

Any other option out there?
 

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Give Lemon a call, he has his lines custom-made for him, and I bet he can help you out. Good luck on the upgrade. Post up some pictures of the before and after. Those 350s should be pretty stout on the front.
 

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Goodridge is the defacto standard on stainless steel brake lines, used as OEM on many cars, and is the only brake line included with Brembo GT brake kits. In my case (Brembo GT kits), they were all too short. The fronts were used on the back and longer fronts ordered.
 

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Discussion Starter #6
Can you please tell me where to get the Goodridge lines (online)? I google them but cannot find anything.

I will try contacting Schnell, and see if they can help me. How are their Brake lines? Any issues so far, since they are custom made (Who makes them?)?
 

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I know, but the problem is they sell the kit for front+rear... I need 981 rear, and 991S front. I would have to invest basically on 2 kits (double).

Any other option out there?
Sure, since you are in Florida, see Zotz Racing in Maitland, FL. They are VERY good at the brake conversions. Very reasonably priced, too. FYI, they are Porsche specialists and are very involved with the PCA.
 

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How much of an effect do stainless steel lines have on this car?
 

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a lot more firmer .. on the brake feel.. we also found out that the wall of 981 that holds the master cylinder and booster.. tends to flex.. we have a new product comming to reinforce that problem and a will help stiffen the brake feel..

Lemon
 

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How much of an effect do stainless steel lines have on this car?
I think the feel improvement with Steel lines is a huge confidence builder interms of hard braking. I've put steel lines on all of my cars now for the last 15 years (even just boring old street cars).

The most obvious change is the eliminating of hose expansion so the pedal will feel firmer and more pedal pressure will get applied at the calipers as opposed to further stretching the rubber hoses.

Also, steel lines conduct more feel (vibration) coming up from the rotors. In a non ABS car this is what really allows you to feel a tire locking up. With ABS you'll know for sure when the ABS is activated (you probably would with stock hoses to be fair as well). But overall I think you can expect a firmer more connected braking feel. In my 987.2 I also swapped in the GT3 Master Cylinder, not sure if that's as needed with the 981s as it is with the 987s.
 

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Thanks, yes this is my experience with SS lines as well. I've used them before on my S2000 and they only provided moderate amounts of improvement in pedal firmness (with a huge improvement in ABS feedback). I would expect an $80k Porsche to run top shelf brake lines straight from the factory, but I guess I'm wrong.

I was hoping you'd say "Eh, they feel about like stock, save your money" :D
 

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I would expect an $80k Porsche to run top shelf brake lines straight from the factory, but I guess I'm wrong.
I sort of expected that as well when I bought my Porsche. I had this impression of all these air cooled 993s going straight from the dealership to the track.

I think the GT cars fit that role more and the non GT cars have moved towards higher profit margin less 'race car' parts, that is more the norm for sports cars from other manufacturers.
 

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Don't want to get in a pissing contest over entirely subjective issues, but I think it's safe to assume that if there were any measurable benefit in brake feel or performance Porsche would fit SS lines to its race cars and GT cars. Go check the lines on those factory cars. I have.


Dan
Sent from my iPhone using Tapatalk
 

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Don't want to get in a pissing contest over entirely subjective issues, but I think it's safe to assume that if there were any measurable benefit in brake feel or performance Porsche would fit SS lines to its race cars and GT cars. Go check the lines on those factory cars. I have.
Dan
^^^ This!

If you cut open a stock brake line you will find steel braid sandwiched inside. They are both braided lines but the stock lines have better protection from impact and abrasion. For my money (and Porsche race teams) the stock lines are best. Choose the ones you want with eyes wide open.
 

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^^^ This!

If you cut open a stock brake line you will find steel braid sandwiched inside. They are both braided lines but the stock lines have better protection from impact and abrasion. For my money (and Porsche race teams) the stock lines are best. Choose the ones you want with eyes wide open.
Acknowledged STLPCAs desire not to turn this into a pissing contest. So just my $0.02, to each their own for sure, just my my opinions.

When I drove a 991 GT3 the brakes felt fantastic (the car was owned by ExoticsRacing), if that was stock lines then I'd agree. The GT3 had rock solid brakes and I felt no need to upgrade based on the 7 laps I drove. That car is obviously used and abused by every one of their customers and I still thought the brakes were spot on.

The 987 Cayman (of which I've owned a 987.1 and now currently a 987.2) the lines are spongy and I don't think its debatable that SS lines are a big upgrade. There's are long running threads on the first gen Caymans lousy brake pedal feel (a GT3 master cylinder being a big component of greatly improving that, but SS lines as well).

But at the end of the day that is just my $0.02.
 

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a lot more firmer .. on the brake feel.. we also found out that the wall of 981 that holds the master cylinder and booster.. tends to flex.. we have a new product comming to reinforce that problem and a will help stiffen the brake feel..

Lemon
Mind telling us more about this “problem” & did you guys ever come up with a new product to solve it? Thanks.
 
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