GT2/3 cup front disks

[supermono]

I'm talking to carnewal about buying some steel brakes for the GT2. 350mm front and rear, but the rears are listed as "cup" and the fronts have an option of "cup". What's the difference between the front standard and cup, and since I'm getting non-optional cup at the rear, should I match with cup at the front?



Cheers

SM

[SPB2]

Have you considered the Alcon option from JZ MAchtec. They fit as direct replacements for the old ceramics.



They work brilliantly both on road and track, lasting for over a year

[Slippydiff]

supermono said:

I'm talking to carnewal about buying some steel brakes for the GT2. 350mm front and rear, but the rears are listed as "cup" and the fronts have an option of "cup". What's the difference between the front standard and cup, and since I'm getting non-optional cup at the rear, should I match with cup at the front?



Cheers

SM

As I understand it the Cup discs are slightly thinner ? and considerably cheaper.

SM. Whilst I appreciate it's worthwhile exploring all avenues prior to spending fairly large chunks of money on steel brakes. Trust me, I've spent the last 5 months going through the whole process and thus feel reasonably "qualified" to comment !





http://www.pistonheads.co.uk/gassing/topic.asp?h=0...

[Kurgen]

Speak to domster at Fearnsport, my brake setup is spot on. Performance Friction front+ Alcons rear



If you buy the GT3 drilled discs, they crack anyway!

All the GT3 boys switch to PFC or Alcons.



Rob

[supermono]

[quote=Trust me, I've spent the last 5 months going through the whole process and thus feel reasonably "qualified" to comment !



[/quote]



Totally, and your input is well noted thanks. The carnewal guy is selling just the OEM brakes you're recommending -- 997 GT3 rear disks and C4S/Turbo pads to suit. Just that his prices seem a bit better. The question of cup alternatives arises though, what do you reckon?



Also, YHM about a PCCB question...



Cheers

SM

[maximu5]

buy Alcon floaters instead

[supermono]

maximu5 said:

buy Alcon floaters instead

Why?



SM

[SPB2]

They are a better disk for all purposes, the new versions do not rattle like the older ones, they last for ages taking some serious abuse, they fit directly in place of old ceramic disks if this is required. The price is only slightly more than the OEM part, but in terms of longevity, they make their money back 4 fold.



One couldn't recommend a more "valuable" change to a performance Porsche.



Using Pagid RS29 or 19, they are fantastic. The 29's tend to squeel badly.

[Slippydiff]

maximu5 said:

buy Alcon floaters instead

Alcons are expensive and IMO are overkill for road use ONLY. However if you're considering doing anymore than two or three trackdays per year then they or the Performance Friction equivalent are most likely a sensible investment .



SM. Have a look on Rennlist for further info on the Cup discs, I'm sure they're considerably cheaper (and as previously mentioned the fronts are two or three mm thinnner than the OE steels)



Pure conjecture on my part, but the Cup discs will be cheaper for a reason, most likely because the Cup racers throw them away after a certain amount of race miles.

If you want longevity, the genuine OPC 350mm steels or Alcons will be more durable.

[SPB2]

Sorry do agree with slippydiff for road use only the OE part is enough

[supermono]

Thanks for the alcon info. Are they rebuildable -- ie if they're floating I'm assuming I can dismantle them for future replacement of just the friction material and keep the carriers.



Where do I buy them from?



Cheers

SM

[supermono]

SPB2 said:

Sorry do agree with slippydiff for road use only the OE part is enough

Sure, but I will be doing trackdays and the last thing I want is second class brakes if I can get better ones for notmuchmore pounds.



SM

[SPB2]

yes the bell and disk are two seperate parts and on replacement only the disk is needed. For my ceramic replacements I was even able to use the original ceramic bell (on the rear). Steve at JZM machined new bobbins so that the disk could fit.



I'm sure Steve would be happy to talk to you about the Alcons.

[Slippydiff]

supermono said:

[quote=Trust me, I've spent the last 5 months going through the whole process and thus feel reasonably "qualified" to comment !

Totally, and your input is well noted thanks. The carnewal guy is selling just the OEM brakes you're recommending -- 997 GT3 rear disks and C4S/Turbo pads to suit. Just that his prices seem a bit better. The question of cup alternatives arises though, what do you reckon?

Also, YHM about a PCCB question...

Cheers
SM

Non received ?

Edited by Slippydiff on Wednesday 23 May 12:42

[DanH]

I've replaced the ceramics front and rear on my car with alcons. The rears are very expensive and it was a right pain to separate the hat from the rear ceramics to attach the steel alcon rotor. Were I to do it now, I would put alcons on the front and use the 997 cup rear disks which fit fine (although the offset is subtly different but not enough to cause any issues). This would save a lot of money and save a lot of work stripping the rear rotors from their hats - not something I was that in love with doing anyway as it complicates refitting the ceramics in the future. It took a couple of hours with a heatgun and I broke several screw drivers...



The rears really don't get enough abuse to justify the alcon imho.

[Pork_n_Beem]

Dan, i simply used a hammer and chisel - those bolts are so hard they just splinter with a tap. The head flies off and you can simply unscrew the body of the bolt with a pair of pliers. PoP



I removed them in around 10 mins.



hope this helps

[Pork_n_Beem]

Have Alcons and RS29's on mine that actually don't (touch wood) squeal.



For the first time owning a Porsche i am not constantly looking at the state of the brakes, they are that good !!



Fit and forget !!



Forgot to say from JZMach although the rotors you could get from tweeks if you must

Edited by Pork_n_Beem on Wednesday 23 May 21:04

[Steve Rance]

If you are tracking the car use Brembo (Parr) or Alcon (JZM) floating discs with pagid RS29 pads. I get 3 days out of standard front disc, 4 days out of motorsport discs and 15 out of brembos. They are an essential conversion to the track day enthusiast and will pay for themselves quickly.

Steve R