Discs for Big Red/Blacks
- Thread starter John Sims
- Start date
You've obviously not discussed this with a really hacked off GT3 driver with cracked disks- If there is any suggestion that the car has been tracked, Porsche will not stump up. They also blame driving styles, saying that if you brake hard enough, you are on and off the brakes quickly, and the disks can dissipate the generated heat. They always suggest that people "drag" on the brakes into and out of corners, allowing a greater heat build up, which then causes the disks to crack... - Utter tosh if you ask me, especially when people are spending £75000 on a "race bred" GT3 with a roll cage and harness as standard - are they saying it is only suitable for shopping in?
It seems to becoming a standard mantra from Porsche - "you must have been driving it too hard on a trackday" - if you look in the 996 forum, there is a guy who's engine has internal scoring which looks like a material defect or manufacturing fault - the car does 30,000 purely business miles a year, and when he went to claim from Porsche, the "Track day" excuse came out....how are you supposed to disprove this?
If you really want meet someone who is hacked off with Porsche brakes, speak to someone who's ceramic disks have failed, and Porsche still will not cough up........
Interestingly, I've never heard of it being a serious problem on air cooled 911's, including TT's etc 944's etc
Pete
sawood12
New member
I was going to say, this seems to be a fairly new problem as i've not heard about if in relation to 993 or 964's. I think Porsche have cheapened the material they manufacture discs from. The newer models seem to suffer corrosion and pitting as well which is unheard of on the earlier models OEM disks. I'm just sticking with solid discs now as I can do without having to replace discs prematurely.
I think generally discs have become softer, they work better but wear out much faster, cars are generally getting heavier as well which will have an adverse affect on longevity. The ceramic issue shows how badly the company wants to remain the most profitable even at the expense of upsetting some of its customers.
Tony
Tony
ORIGINAL: MarkK
Hi john,Re the warping i was using Pagid orange and possibly Black pads that are fairly(really really!!) hard on the discs they sound like metal on metal sometimes,went to PFC pads and they were kinder if i remember,but they had so much bite you could stand the car on its nose!Just found after a day or two they almost distorted the surface of the disc and they developed a wobble...but after the skimming it went away temporarily.Was driving the 968cs on cheap Pirelli slicks and with the big red brake settup you could chase allsorts and really upset them,but after a while i got sick of the lack of grunt and went back to a Turbo[][
Cheap Pirelli slicks?!? Isn't that a contradiction of terms?
Paul I'd be interested on what you turn up re brake upgrades for your car? I too am looking outside the box, so to speak, as everyone naturally turns to Porsche Brembo upgrades, but as you say there may be more suitable options out there in other brands. Keep posting about that please. This leads me also to continue Fen's line of thinking about using PFC rotors as well as the pads. I'm going through the process of finding out on a complete system from PFC as they make all 3 components in house (Pads, Calipers, Rotors) although Ollis GT2/3's look damn sexy too!!!
MarkK
Active member
Paul the GT3 boys are changing their discs to Alcon discs(Solid!!)Brembo also have a solid floatng disc for GT3s but they rattle and squeal lot so the Alcon ones are proving popular,my Brother and Dad both run these and swear by them,if Oli s fitting the six pots to a 951 then they are worth considering for track use.Fen i know its sad, but it isn't black and white they will wriggle out of stumping up unless you are the dealer principle or the parts guy is a relative or best mate.....The comment about cheap Pirelli slicks i was getting them in bulk really cheaply at the time from Mark Hutchison he was a great bloke who unfortunately is no longer in the tyre buisness- he was official supplier for RMAtyre,trust me they were cheap[]
]I'll give it a go thanks John.http://oz951.com/public/index.htm test link to a guy's site in Australia about his travails with his 951.
I haven't tried to have my disks replaced on warranty, but I am pretty close to the ex parts guy and I think they get a lot of extra business through me (an now others) recommending them all over the internet. Would they want me to change tack and rubbish them over a set of disks? I seriously doubt it.
As John says though they will be out of warranty before I get to the point of testing the theory, and I expect to use Performance Friction rotors next time round.
As John says though they will be out of warranty before I get to the point of testing the theory, and I expect to use Performance Friction rotors next time round.
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