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Pip1968
Österreich


Joined: 26 Oct 2009
Posts: 992
Location: Blighty


PostPosted: Wed May 17, 2017 6:04 pm    Post subject: Floating disc options for 996 GT3 ? Reply with quote

More just a chance to post and glean some expertise (probably from NXi20 but hopefully others too).

I still have plenty of life in my discs but as a look forward are there many option for going to a floating set up assuming I stay within the OEM 350mm set up. Are these ones (below) any good. anyone have any experience of them??

Pip
 



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Senoj
Shanghai


Joined: 23 Jan 2006
Posts: 4921
Location: Sussex


PostPosted: Wed May 17, 2017 7:39 pm    Post subject: Reply with quote

Just buy Alcon for similar money i think. D911 brake disc who?..I doubt they even have stock but even if they did, that price will probably be plus vat too..?

You would be better off without a drilled disc too...they will crack prematurely same as OE. (Used on track)

My 2p
 
  
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NLW73
Hockenheim


Joined: 27 May 2014
Posts: 740
Location: Yateley


PostPosted: Wed May 17, 2017 8:54 pm    Post subject: Reply with quote

ditto. go for grilled on the floating bells Pip if you are spending that money.

no bigger in size either so speak to Nick at Uber 9s if you are doing the swap.

or stick to OEM discs and buy a few sets.
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996 GT3 mk2 - Guards Red
 
  
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Pip1968
Österreich


Joined: 26 Oct 2009
Posts: 992
Location: Blighty


PostPosted: Wed May 17, 2017 9:20 pm    Post subject: Reply with quote

Ah I did notrealize Alcon did floaters in OEM sizes. I sort of assumed that you could only go for the upgrade 362mm.

Good news.

Thanks Senoj and Nick (Nick they are only "grilled" after being on track - predictive text ? Very Happy )

Pip
 
  
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Disco
Paul Ricard


Joined: 13 May 2008
Posts: 3480
Location: Hertfordshire

2010 Porsche 997 GT3

PostPosted: Wed May 17, 2017 9:26 pm    Post subject: Reply with quote

If the car is seeing regular track use then you want a grooved but not drilled rotor (I've always used Alcons, but there are people out there with PF and Brembo). If you are not hitting the track with any serious frequency then just buy the (non-floating) 996 Cup disks at about 500 quid per pair (for the fronts) and put the savings towards a lighter set of wheels (more effect on reducing gyroscopic mass and not consumable).
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Black 997 GT3 3.8 CS - Acquired for the 2012 season and beyond
Black 996 GT3 Mk2 - Gone, but will never be forgotten
 
  
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Pip1968
Österreich


Joined: 26 Oct 2009
Posts: 992
Location: Blighty


PostPosted: Wed May 17, 2017 9:40 pm    Post subject: Reply with quote

I am a track attendee although in the last couple of years I have been waylaid. I have only been to the Nordschleife which do not seem to be to bad on disc wear. Probably best described as a 'hobby driver' (those that were ever on the old BM3W site will remember the guy who was always using that expression).

Are the Cup disc of the floating variety and grooved too Disco or just cheaper than OEM non Cup?

Pip
 
  
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Senoj
Shanghai


Joined: 23 Jan 2006
Posts: 4921
Location: Sussex


PostPosted: Wed May 17, 2017 10:12 pm    Post subject: Reply with quote

Pip1968 wrote:
I am a track attendee although in the last couple of years I have been waylaid. I have only been to the Nordschleife which do not seem to be to bad on disc wear. Probably best described as a 'hobby driver' (those that were ever on the old BM3W site will remember the guy who was always using that expression).

Are the Cup disc of the floating variety and grooved too Disco or just cheaper than OEM non Cup?

Pip


Cup disc is bi metal but not floating. Even Alcons can be non floating depends on the bells and bobbins you use.

I was on BM3W donkeys years ago...what happened? Did it morph into cutters..not the same thing at all really Floor
 
  
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Pip1968
Österreich


Joined: 26 Oct 2009
Posts: 992
Location: Blighty


PostPosted: Wed May 17, 2017 10:53 pm    Post subject: Reply with quote

Right if I went to a non OEM disc I would probably try and get a floating type Question

I am not sure what went on there really. I think it was some sort of fallout even though the people on there were such a good bunch and all quite grown up as well as being a brilliant source of information. Cutters seems to be a bit boy racer "Innit bruv" and I sort of assumed they were not linked to BM3W.

I jumped onto CSL Register and only occasionally look at Cutters.

Pip
 
  
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LaSource
Nürburgring


Joined: 08 Feb 2009
Posts: 376



PostPosted: Fri May 19, 2017 11:27 pm    Post subject: Reply with quote

Agree - grooved better for track use than drilled.

I've been using grooved GiroDiscs with RS29s from 9e.
I haven't used Alcons but they get good press too.
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Stuart
General
General


Joined: 16 Sep 2007
Posts: 5010
Location: Waterworld

2004 Porsche 996 GT3 Mk2

PostPosted: Sat May 20, 2017 6:09 am    Post subject: Reply with quote

I've been through all the options and has OEM, Cup, PFC, Girodisc and now Alcon.

If you're going to do a fair amount of track work or just want the best then go with Alcon.

2nd is Girodisc, well made, slotted, relatively priced, Ken @ 9e supported. Additional factor of good life and weight. When I was researching I got the following rear weights as reference:

Girodisc slotted 350x28mm rear = 18.19lbs/ 8.25kg
The PF dimpled 350x28mm rear = 22lbs/ 10.0kg
Stock/OEM drilled 350x28mm rear = 22.05lbs/ 10.02kg

There's actually a fair amount of info here if you search.

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ontheloop
Silverstone


Joined: 05 Feb 2012
Posts: 132
Location: Bournemouth

2004 Porsche 996 GT3 Mk2

PostPosted: Sat May 20, 2017 8:56 pm    Post subject: Reply with quote

Another vote for the Girodiscs. I have the slotted versions on my 996.2 GT3 with RS29 pads, excellent combination.
 
  
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