997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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New clutch required?

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Old Aug 17, 2010 | 09:05 PM
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Originally Posted by bbywu
I just looked on Porsche's PET catalog...the GT2 and Turbo share the same part number for the flywheel:

997 114 012 51
bob thanks , how about the gt3 rs lwfw , has any one tried that with the upgraded sachs clutch, todd recommended that for lwfw option
 
Old Aug 18, 2010 | 12:57 PM
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Gents,

We are a direct dealer with Sachs Racing and can get anything in their catalog. Our pricing is competitive as well.

I have considerable seat time in cars with both our Stg 2.5 and Stg 3 kit. I have excellent feedback and have been pretty good with outfitting clients with the right clutch for their application.

Mike@awe-tuning.com

Visit our web site for more info:
http://awe-tuning.com/pages/shared/p...n&IL=996stage2
 

Last edited by Josh/AWE; Aug 18, 2010 at 01:02 PM.
Old Aug 18, 2010 | 12:59 PM
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Mike,
would you know what power level the stock clutch/pressure plate is good for. I've read it here somewhere before but can't find the info again.
 
Old Aug 18, 2010 | 01:05 PM
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Originally Posted by The Bogg
Mike,
would you know what power level the stock clutch/pressure plate is good for. I've read it here somewhere before but can't find the info again.
Well I don't know the exact number from Porsche, but from experience we know that it is good for about 650-660. It's life at that power level will really be determined on how it is driven.

Hope that helps.

For our 650 and 750 kits we are recommending the Stage 2.5. The pedal feel is like stock and there is no shutter or chatter at engagement.
 
Old Aug 19, 2010 | 09:35 AM
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Thanks Mike. The penny jar for the II.5 clutch fund has been started.
 
Old Aug 19, 2010 | 09:47 AM
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Originally Posted by The Bogg
Thanks Mike. The penny jar for the II.5 clutch fund has been started.
I'll be here. Just let me know what you need.

Thanks!

mike@awe-tuning.com
 
Old Aug 19, 2010 | 11:04 AM
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Originally Posted by Mike/A.W.E.
Well I don't know the exact number from Porsche, but from experience we know that it is good for about 650-660. It's life at that power level will really be determined on how it is driven.

Hope that helps.

For our 650 and 750 kits we are recommending the Stage 2.5. The pedal feel is like stock and there is no shutter or chatter at engagement.
It's more about torque than BHP no? Hence why pressure plates from Saches are listed in Nm. What Nm are the 650 and 750 bhp kits running Mike?

I did this comparison of my CG544 kit and the Ruf550 kit a while back. The Ruf550 kit comes with an uprated clutch, the CG544 kit doesnt and uses the stock clutch. The peak torque of my CG544 is higher than the Ruf550 but comes in at later revs:




From my recent experience, I'd say anything around the 775Nm level would need an uprated clutch.

I have had no clutch slippage this summer, but that is probably down to the warmer weather and less dense air yielding less power than during the winter months.
 
Old Aug 19, 2010 | 11:41 AM
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Originally Posted by venkatreddytx
Bob

Can you tell if the part number for the clutch disk is different between 997.1 Turbo and 997.1 GT2

Reason is RUF in Dallas said they would use the GT2 Clutch with 752 PP, I asked for 764 PP and they said they could do that.
Clutch plates are different part numbers: 997 116 013 50 for the 997TT versus 996 116 015 01 for the 997 GT2

I'm not sure how they correlate with Sach's numbers.
 
Old Aug 19, 2010 | 11:43 AM
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Originally Posted by cgng30
if i may ask , what do you mean by sprung disc?
sprung



versus unsprung:



A large amount of vibration will be taken away by the sprung disc.
 
Old Aug 19, 2010 | 11:46 AM
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Originally Posted by cgng30
bob thanks , how about the gt3 rs lwfw , has any one tried that with the upgraded sachs clutch, todd recommended that for lwfw option
I don't have much experience with the RS flywheels - try the 996TT guys...they've tried every combo out there.

I used an Aasco flywheel with a Sachs clutch setup, identical to what Mike/Todd at AWE use. When the clutch went in at Ruf, I also asked that they use a 764 rather than 752 pressure plate.
 

Last edited by bbywu; Aug 19, 2010 at 11:48 AM.
Old Aug 19, 2010 | 12:05 PM
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Originally Posted by bbywu
Clutch plates are different part numbers: 997 116 013 50 for the 997TT versus 996 116 015 01 for the 997 GT2

I'm not sure how they correlate with Sach's numbers.
Bob

Thanks for looking up the part numbers.
Strange though that the 997 GT2 part has a 996 prefix.
 
Old Aug 19, 2010 | 02:49 PM
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Re. stock clutch, there is no "formal" figure, but my informal "web research" :-) indicates around 560 ft-lb or 760 Nm, the level of a stage 3 tune.

This means, most stage 2 cars (exhaust + ECU tune) will be ok with OEM clutch, but a good stage 3 tune (exhaust + ECU + intercooler) will require better clutch.
Much also depends on driver and driving condition as already mentioned. My stage 2 car for example slips when it's cold and whenever my tuner Tom of Lucent touches it.

BTW, PDK's limit IIRC is around 795 Nm. This would make me somewhat concerned to tune a PDK car to stage 3 (intercooler), since the margin of error is so thin at this point (you would think stage 3 997.2 would come closer to 795). This is especially true since there have been a couple of reports of PDK failure (unknown cause) in Europe that I've read about.

+1 for Mike/AWE. I will be calling when my car needs new clutch.
 
Old Sep 1, 2010 | 10:48 AM
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Originally Posted by cgng30
bob thanks , how about the gt3 rs lwfw , has any one tried that with the upgraded sachs clutch, todd recommended that for lwfw option
Having GT3RS Flywheel/clutch kit installed.
Bought the kit from Todd/Protomotive and he said this was the quietest LWFW option around.

GT3RS lwfw 964.102.239.31
GT3RS Clutch Disk(Sprung) 996 116 015 32
Stage3 PP 88 3082 999 764
release bearing, pilot bearing, ring gear, bolts etc.

Will let you know how I like it.
 

Last edited by venkatreddytx; Sep 1, 2010 at 01:41 PM.
Old Sep 1, 2010 | 10:55 AM
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Originally Posted by venkatreddytx
Having GT3RS Flywheel/clutch kit installed.
Bought the kit from Todd/Protomotive and he said this was the quietest LWFW option around.

GT3RS lwfw 964.102.239.31
GT2 Clutch Disk(Sprung) 1878000802
Stage3 PP 88 3082 999 764
release bearing, pilot bearing, ring gear, bolts etc.

Will let you know how I like it.
You're gonna have one sweet ride when all is set and done. Post some times if you get a chance.
 
Old Sep 1, 2010 | 12:24 PM
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Originally Posted by venkatreddytx
Having GT3RS Flywheel/clutch kit installed.
Bought the kit from Todd/Protomotive and he said this was the quietest LWFW option around.

GT3RS lwfw 964.102.239.31
GT3 Clutch Disk(Sprung) 996 116 015 32
Stage3 PP 88 3082 999 764
release bearing, pilot bearing, ring gear, bolts etc.

Will let you know how I like it.
what is the approx price for this? I'm a bit puzzled how the GT3 clutch system could handle the power of the turbo?

please post your impressions when you get it installed.
 


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