GT2 PCCB Replacments

[stef1808]

Good afternoon,

I wabt to change my brakes on the 997 GT2 and was hoping you could clear a few things up for me:

- are the brakes on the gt2 the same as the 997 gt3? (i.e 350mm front and rear)

- PFC seem to have the best rep and seem reasonably priced with there slotted discs - does the cup car use them now? did they in 09?

- Ive been told before to look into P motorsport discs which the 997 cup car used - do you know what they were?

and finial question, when it comes to stopping power: do the discs really matter that much or are more expensive (Brembos?) only better for life/heat cycles etc

Thanks

[Slippydiff]

stef1808 said:

Good afternoon,

I wabt to change my brakes on the 997 GT2 and was hoping you could clear a few things up for me:

- are the brakes on the gt2 the same as the 997 gt3? (i.e 350mm front and rear)

- PFC seem to have the best rep and seem reasonably priced with there slotted discs - does the cup car use them now? did they in 09?

- Ive been told before to look into P motorsport discs which the 997 cup car used - do you know what they were?

and finial question, when it comes to stopping power: do the discs really matter that much or are more expensive (Brembos?) only better for life/heat cycles etc

Thanks

I think the 997 GT2 front discs were considerably bigger than 350mm, closer to 370mm or even 380. The front calipers for steel brakes and PCCB's are different (the bigger caliper required a deeper mounting boss on the caliper). So if you want to fit steels, you'll need the same size steel as the original PCCB disc.

You'll find what you need here :

https://uber9s.com/997-gt/

Speak to Matty at Fearnsport : http://www.fearnsport.co.uk/

[noneedtolift]

Hi Stef, I am running the Performance friction set up on the 997 GT2 (fronts are 380, rears 350 if I am not mistaken). Straight swap for PCCBs with steels listen to slippydiff.

Unbeaten on track but noisey on the road (squeal not so bad, but disc knocking quite annoying but you get used to it). I use their endurance pad and get quite a bit of life out of them.

[MDL111]

Slippydiff said:

stef1808 said:

Good afternoon,

I wabt to change my brakes on the 997 GT2 and was hoping you could clear a few things up for me:

- are the brakes on the gt2 the same as the 997 gt3? (i.e 350mm front and rear)

- PFC seem to have the best rep and seem reasonably priced with there slotted discs - does the cup car use them now? did they in 09?

- Ive been told before to look into P motorsport discs which the 997 cup car used - do you know what they were?

and finial question, when it comes to stopping power: do the discs really matter that much or are more expensive (Brembos?) only better for life/heat cycles etc

Thanks

I think the 997 GT2 front discs were considerably bigger than 350mm, closer to 370mm or even 380. The front calipers for steel brakes and PCCB's are different (the bigger caliper required a deeper mounting boss on the caliper). So if you want to fit steels, you'll need the same size steel as the original PCCB disc.

You'll find what you need here :

https://uber9s.com/997-gt/

Speak to Matty at Fearnsport : http://www.fearnsport.co.uk/

can't remember, but I thought my 997 GT2 had 398mm

[Slippydiff]

MDL111 said:

can't remember, but I thought my 997 GT2 had 398mm

Specs can be found here :

http://press.porsche.com/news/pdf/2008_GT2_Specs.p...

[MDL111]

Slippydiff said:

MDL111 said:

can't remember, but I thought my 997 GT2 had 398mm

Specs can be found here :

http://press.porsche.com/news/pdf/2008_GT2_Specs.p...

have stopped looking at specs/parts for it since it went to heaven .... too painful to think about (did click on this link though, 380mmm - well I had 2 of 3 digits right ...)

[Slippydiff]

MDL111 said:

Have stopped looking at specs/parts for it since it went to heaven .... too painful to think about

Ah, you've been down that road too. Not fun

MDL111 said:

(did click on this link though, 380mmm - well I had 2 of 3 digits right ...)

2 out of 3 is pretty good

[996GT2]

The PCCB pads are nearing 50% on my 997 GT2 - not bad for 40k miles!

I'm probably going to buy some PF steels and put the PCCBs in a box as they're in really good nick.



The clutch has just started slipping. Matt at Fearnsport is recommending the 890 Sachs clutch as a replacement. Has anyone gone down this route? I remember reading somewhere that this clutch had caused gearbox issues, or am I making that up?

[Slippydiff]

996GT2 said:

The PCCB pads are nearing 50% on my 997 GT2 - not bad for 40k miles!

I'm probably going to buy some PF steels and put the PCCBs in a box as they're in really good nick.



The clutch has just started slipping. Matt at Fearnsport is recommending the 890 Sachs clutch as a replacement. Has anyone gone down this route? I remember reading somewhere that this clutch had caused gearbox issues, or am I making that up?

I'm dubious Matt would suggest fitting it if it's likely to cause gearbox damage.
Not sure why you're thinking of boxing up such an important and intrinsic part of the car's DNA ? Unless they're looking likely to de-laminate in a catastrophic way sometime soon, why don't you just leave them on the car ? Worst case scenario you get them resurfaced, or if the car is going to the grave with you, slap a set of Alcons CCX discs (that will last the life of the car) on to replace the PCCB's.

[jimmyslr]

I thought that replacement discs had come right down in price and up in quality? I was discussing this at JZM the other day. Surely nobody other than a truly ill informed buyer would be troubled by replacement discs that were of higher quality and newer?

I'd go with the advice of use it and then replace discs with the suggested Alcons or similar if the oem ones get to the end of their life.

[S1MMA]

380mm up front and 350mm at the back is the same size as 997.1 GT3 PCCB also.

The 997.2 GT3 PCCB was still 380mm up front but also 380mm in the rear if I remember correctly.The 997.2 GT3 steels were also 380mm up front and 350mm rears. The 997 Cup rears are also 350mm and fit the 997.1 GT3 PCCB as steel replacement (similar to 997.1 Turbo rear steels). The 997.2 GT3 steel 380mm fronts fit the 997.1 GT3 PCCB as steel replacements.

So wouldn't the 997.1 PCCB replacement options work on the GT2 (OEM 997.2 GT3 front discs, DBA etc?). Not as good as Alcons/PF etc but still opens up options for those that aren't on track every weekend.

Edited by S1MMA on Friday 30th September 09:47

[Slippydiff]

S1MMA said:

380mm up front and 350mm at the back is the same size as 997.1 GT3 PCCB also.

The 997.2 GT3 PCCB was still 380mm up front but also 380mm in the rear if I remember correctly.The 997.2 GT3 steels were also 380mm up front and 350mm rears. The 997 Cup rears are also 350mm and fit the 997.1 GT3 PCCB as steel replacement (similar to 997.1 Turbo rear steels). The 997.2 GT3 steel 380mm fronts fit the 997.1 GT3 PCCB as steel replacements.

Would make sense bearing in mind the high rear pad wear rates, but this would tend to indicate otherwise :

http://www.autoatlanta.com/Porsche-997-Turbo-gt2-g...

S1MMA said:

So wouldn't the 997.1 PCCB replacement options work on the GT2 (OEM 997.2 GT3 front discs, DBA etc?). Not as good as Alcons/PF etc but still opens up options for those that aren't on track every weekend.

I don't see why not, my guess is they wouldn't be particularly cheap from your local OPC though .....

The OP doesn't say why he wants to change, all well and good if he plans on tracking the car regularly, but for road use I'd leave them on.

[stef1808]

Thanks a lot for your replies. Im going through the discs pretty quickly on the track so thats why im changing.

Decided to go for the PFC slotted

[stef1808]

996GT2 said:

The PCCB pads are nearing 50% on my 997 GT2 - not bad for 40k miles!

I'm probably going to buy some PF steels and put the PCCBs in a box as they're in really good nick.



The clutch has just started slipping. Matt at Fearnsport is recommending the 890 Sachs clutch as a replacement. Has anyone gone down this route? I remember reading somewhere that this clutch had caused gearbox issues, or am I making that up?

Matt did my clutch, also a 890 Sachs. Its pretty heavy for traffic driving - no issues otherwise

[996GT2]

stef1808 said:

996GT2 said:

The PCCB pads are nearing 50% on my 997 GT2 - not bad for 40k miles!

I'm probably going to buy some PF steels and put the PCCBs in a box as they're in really good nick.



The clutch has just started slipping. Matt at Fearnsport is recommending the 890 Sachs clutch as a replacement. Has anyone gone down this route? I remember reading somewhere that this clutch had caused gearbox issues, or am I making that up?

Matt did my clutch, also a 890 Sachs. Its pretty heavy for traffic driving - no issues otherwise

Cheers. Given what I know about Fearnsport I trust what they're saying over any OPC, my only concern is that if I sell my car and some evil non-standard part is discovered I could end up paying again to have it replaced - not convinced they'd ever notice though.


Matt has priced up the standard clutch for me and it's a bit cheaper, given that my car has an easy life with no track days and that this clutch has lasted 40k I'm probably going to go with the stock option. I don't doubt that the 890Nm is better but probably won't make much difference for my use of the car.

[TB993tt]

996GT2 said:

Cheers. Given what I know about Fearnsport I trust what they're saying over any OPC, my only concern is that if I sell my car and some evil non-standard part is discovered I could end up paying again to have it replaced - not convinced they'd ever notice though.


Matt has priced up the standard clutch for me and it's a bit cheaper, given that my car has an easy life with no track days and that this clutch has lasted 40k I'm probably going to go with the stock option. I don't doubt that the 890Nm is better but probably won't make much difference for my use of the car.

My clutch was slipping from new at peak torque in high gear and I remember speaking to others who had the same. The standard 997GT2/RS clutch is not up to the 700 odd NM in high gear on a cold day. I would suspect your 40K miler has maybe had a change at some point.
I would be careful exactly which "890NM" package or any other package you are looking at, some people have "890" clutches fitted usually with LWFWs and experience lots of nasty noise.
It would be a shocker if you paid for a spanking new stock clutch and it started slipping so If I were you I would go for a slightly uprated clutch, one rated at ~750NM.
You need to find an expert with experience who has actually done the exact set up so you can be sure of what you are ending up with.

I have "890NM" clutches on my 993 and my 997 and whilst the PPs may be the same the discs are different, the 3 uses a non sprung design whereas the newer 7 uses the GT3RS 4.0 sprung disc...... I would say the 3 is harder to use than stock by the 7 is pretty similar.

[996GT2]

TB993tt said:

996GT2 said:

Cheers. Given what I know about Fearnsport I trust what they're saying over any OPC, my only concern is that if I sell my car and some evil non-standard part is discovered I could end up paying again to have it replaced - not convinced they'd ever notice though.


Matt has priced up the standard clutch for me and it's a bit cheaper, given that my car has an easy life with no track days and that this clutch has lasted 40k I'm probably going to go with the stock option. I don't doubt that the 890Nm is better but probably won't make much difference for my use of the car.

My clutch was slipping from new at peak torque in high gear and I remember speaking to others who had the same. The standard 997GT2/RS clutch is not up to the 700 odd NM in high gear on a cold day. I would suspect your 40K miler has maybe had a change at some point.
I would be careful exactly which "890NM" package or any other package you are looking at, some people have "890" clutches fitted usually with LWFWs and experience lots of nasty noise.
It would be a shocker if you paid for a spanking new stock clutch and it started slipping so If I were you I would go for a slightly uprated clutch, one rated at ~750NM.
You need to find an expert with experience who has actually done the exact set up so you can be sure of what you are ending up with.

I have "890NM" clutches on my 993 and my 997 and whilst the PPs may be the same the discs are different, the 3 uses a non sprung design whereas the newer 7 uses the GT3RS 4.0 sprung disc...... I would say the 3 is harder to use than stock by the 7 is pretty similar.

Thanks for the advice, car is sat in the garage not being used much, I'll get it booked in soon.

I bought the car in 2012 with 14000 miles on it, I'd be surprised if the clutch was replaced before that, it's got a modest over-rev profile so I'd be genuinely surprised if this is the second clutch.

I've not noticed it slipping at all in the 26000 miles I've put on it, and I try to drive it enthusiastically every time it's used, it's not an easy car to go slow in!

[Xyphox]

I've been told it's all about Surface Transform's now.

Rumour has it they may have just sealed a deal with Porsche.

Details here: http://surfacetransforms.com/porsche-997-brake-kit...

[IMI A]

996GT2 said:

TB993tt said:

996GT2 said:

Cheers. Given what I know about Fearnsport I trust what they're saying over any OPC, my only concern is that if I sell my car and some evil non-standard part is discovered I could end up paying again to have it replaced - not convinced they'd ever notice though.


Matt has priced up the standard clutch for me and it's a bit cheaper, given that my car has an easy life with no track days and that this clutch has lasted 40k I'm probably going to go with the stock option. I don't doubt that the 890Nm is better but probably won't make much difference for my use of the car.

My clutch was slipping from new at peak torque in high gear and I remember speaking to others who had the same. The standard 997GT2/RS clutch is not up to the 700 odd NM in high gear on a cold day. I would suspect your 40K miler has maybe had a change at some point.
I would be careful exactly which "890NM" package or any other package you are looking at, some people have "890" clutches fitted usually with LWFWs and experience lots of nasty noise.
It would be a shocker if you paid for a spanking new stock clutch and it started slipping so If I were you I would go for a slightly uprated clutch, one rated at ~750NM.
You need to find an expert with experience who has actually done the exact set up so you can be sure of what you are ending up with.

I have "890NM" clutches on my 993 and my 997 and whilst the PPs may be the same the discs are different, the 3 uses a non sprung design whereas the newer 7 uses the GT3RS 4.0 sprung disc...... I would say the 3 is harder to use than stock by the 7 is pretty similar.

Thanks for the advice, car is sat in the garage not being used much, I'll get it booked in soon.

I bought the car in 2012 with 14000 miles on it, I'd be surprised if the clutch was replaced before that, it's got a modest over-rev profile so I'd be genuinely surprised if this is the second clutch.

I've not noticed it slipping at all in the 26000 miles I've put on it, and I try to drive it enthusiastically every time it's used, it's not an easy car to go slow in!

Was at JZM a few years ago discussing a 7 GT2 they had for sale. JZM mentioned the stock GT2 clutch not up to scratch and they had replaced it with a 890nm. In the car I went to see the stock clutch slipping caused a RR 5 when it slipped.

[996GT2]

IMI A said:

996GT2 said:

TB993tt said:

996GT2 said:

Cheers. Given what I know about Fearnsport I trust what they're saying over any OPC, my only concern is that if I sell my car and some evil non-standard part is discovered I could end up paying again to have it replaced - not convinced they'd ever notice though.


Matt has priced up the standard clutch for me and it's a bit cheaper, given that my car has an easy life with no track days and that this clutch has lasted 40k I'm probably going to go with the stock option. I don't doubt that the 890Nm is better but probably won't make much difference for my use of the car.

My clutch was slipping from new at peak torque in high gear and I remember speaking to others who had the same. The standard 997GT2/RS clutch is not up to the 700 odd NM in high gear on a cold day. I would suspect your 40K miler has maybe had a change at some point.
I would be careful exactly which "890NM" package or any other package you are looking at, some people have "890" clutches fitted usually with LWFWs and experience lots of nasty noise.
It would be a shocker if you paid for a spanking new stock clutch and it started slipping so If I were you I would go for a slightly uprated clutch, one rated at ~750NM.
You need to find an expert with experience who has actually done the exact set up so you can be sure of what you are ending up with.

I have "890NM" clutches on my 993 and my 997 and whilst the PPs may be the same the discs are different, the 3 uses a non sprung design whereas the newer 7 uses the GT3RS 4.0 sprung disc...... I would say the 3 is harder to use than stock by the 7 is pretty similar.

Thanks for the advice, car is sat in the garage not being used much, I'll get it booked in soon.

I bought the car in 2012 with 14000 miles on it, I'd be surprised if the clutch was replaced before that, it's got a modest over-rev profile so I'd be genuinely surprised if this is the second clutch.

I've not noticed it slipping at all in the 26000 miles I've put on it, and I try to drive it enthusiastically every time it's used, it's not an easy car to go slow in!

Was at JZM a few years ago discussing a 7 GT2 they had for sale. JZM mentioned the stock GT2 clutch not up to scratch and they had replaced it with a 890nm. In the car I went to see the stock clutch slipping caused a RR 5 when it slipped.

Strange that, why would Porsche spec a clutch that isn't up to it, I've not really noticed any issues with mine until now, could it be that some of these cars have been re-mapped or tweaked?

The few times it's slipped it's been in 4th under full boost at low rpm, I didn't notice the revs build very high, just a lack of acceleration and a scraping sound and I was straight off the power - hopefully not logged any over-revs, I'll get that checked when it's done.