Notices
997 GT2/GT3 Forum 2005-2012
Sponsored by:
Sponsored by: Porsche North Houston

Pressure plate and clutch 3.8 VS 4.0

Thread Tools
 
Search this Thread
 
Old 10-24-2011, 08:36 PM
  #16  
Izzone
Nordschleife Master
 
Izzone's Avatar
 
Join Date: Dec 2008
Location: Florida
Posts: 7,342
Received 293 Likes on 148 Posts
Default

Originally Posted by Viperbob1
So get inferior Pressure Plate replaced free and potentially lose entry fees, time, hotel rooms, experience at race tracks, etc for your principle. As long as you are happy and buying my screwdrivers....
Thats one way to look at it

Another way is, Porsche fixes under warranty

PP breaks.....sit at track and heckle erik while drinking beer.....just as fun
Old 10-24-2011, 08:47 PM
  #17  
Viperbob1
Rennlist Member
 
Viperbob1's Avatar
 
Join Date: May 2002
Location: Tampa, FL
Posts: 8,675
Likes: 0
Received 11 Likes on 8 Posts
Default

Originally Posted by Izzone
Thats one way to look at it

Another way is, Porsche fixes under warranty

PP breaks.....sit at track and heckle erik while drinking beer.....just as fun
I go to track to race and heckle (is he still faster than Erik? seems most guys driving around him. I was running 2:04s in a '78 3.2l targa with old pavement. Maybe his PP was slipping whole time and he could never get over 6000 rpms..) With amount Peter spends between events for maintenance, a real PP would not even tickle his invoice... But hey, whatever works for everyone. That is why it is a sport...
Old 10-24-2011, 09:07 PM
  #18  
sharkster
Addict
Rennlist Member


Rennlist
Site Sponsor

 
sharkster's Avatar
 
Join Date: Oct 2002
Location: san jose, california
Posts: 7,427
Received 85 Likes on 38 Posts
Default

It's more expensive than the 3.8RS one we know that The 3.8RS one had three straps vs two on the 3.6RS so it was beefed up for those gearing down etc... The straps do come apart though even with the three strap versions We've seen it plenty of times... The 4.0 one is indeed a different part number and currently the only one that Porsche will sell you if you order a new PP for the 3.8. I have an even beefier one I use (a Sachs Motorsports) on the 3.9s and it's a couple of hundred less than the 4.0 one. I'll need to get a picture of one as I have it coming in to compare....
Old 10-24-2011, 09:12 PM
  #19  
Nizer
Rennlist Member
 
Nizer's Avatar
 
Join Date: Feb 2006
Location: Wishing I Was At The Track
Posts: 13,665
Received 1,894 Likes on 975 Posts
Default

Originally Posted by sharkster
I'll need to get a picture of one as I have it coming in to compare....
...and weight difference.
Old 10-24-2011, 09:12 PM
  #20  
sharkster
Addict
Rennlist Member


Rennlist
Site Sponsor

 
sharkster's Avatar
 
Join Date: Oct 2002
Location: san jose, california
Posts: 7,427
Received 85 Likes on 38 Posts
Default

Originally Posted by Nizer
...and weight difference.
haha goes without saying
Old 10-24-2011, 09:26 PM
  #21  
Izzone
Nordschleife Master
 
Izzone's Avatar
 
Join Date: Dec 2008
Location: Florida
Posts: 7,342
Received 293 Likes on 148 Posts
Default

If you put too strong of a PP in and money shift wont the engine take the brunt of the mistake

A guy at Daytona money shifted this weekend and the PP went boom
Old 10-24-2011, 09:46 PM
  #22  
TRAKCAR
Rennlist Member
Thread Starter
 
TRAKCAR's Avatar
 
Join Date: Jan 2008
Location: S. Florida
Posts: 29,424
Received 1,675 Likes on 777 Posts
Default

Originally Posted by Viperbob1
I go to track to race and heckle (is he still faster than Erik? seems most guys driving around him. I was running 2:04s in a '78 3.2l targa with old pavement. Maybe his PP was slipping whole time and he could never get over 6000 rpms..) With amount Peter spends between events for maintenance, a real PP would not even tickle his invoice... But hey, whatever works for everyone. That is why it is a sport...
I go mostly to drink, but I also heckle and drive a bit.

I buy cheapest pads per day, am on my 3rd set of front rotors and second set of rears buy $700 a set tires an LSD and toe links. I stay in $65.00 HI Express and eat at the cracker barel. My biggest expense is fluids, diesel, gas and Vodka.

When I buy a car advertised for track use I expect them to replace known inferior parts, like the PP with the right part#. There is a reason the new part number supercedes the old one. The old one breaks on all new RS cars, just like the Ti exhaust burns out every few thousand track miles, so I buy a Sharkey with my own money because aI love the sound. That's bad enough, Ti exhaust is inferior.

Last edited by TRAKCAR; 10-26-2011 at 12:23 PM.
Old 10-24-2011, 09:47 PM
  #23  
TRAKCAR
Rennlist Member
Thread Starter
 
TRAKCAR's Avatar
 
Join Date: Jan 2008
Location: S. Florida
Posts: 29,424
Received 1,675 Likes on 777 Posts
Default

Originally Posted by partspusher
heelo,
I work in parts at a Porsche dealership and the 3.8 p/n 99711602790 has been discontinued and supersedes to the 4.0 pressure plate p/n 99711602791.
Old 10-24-2011, 09:48 PM
  #24  
TRAKCAR
Rennlist Member
Thread Starter
 
TRAKCAR's Avatar
 
Join Date: Jan 2008
Location: S. Florida
Posts: 29,424
Received 1,675 Likes on 777 Posts
Default

Originally Posted by sharkster
It's more expensive than the 3.8RS one we know that The 3.8RS one had three straps vs two on the 3.6RS so it was beefed up for those gearing down etc... The straps do come apart though even with the three strap versions We've seen it plenty of times... The 4.0 one is indeed a different part number and currently the only one that Porsche will sell you if you order a new PP for the 3.8. I have an even beefier one I use (a Sachs Motorsports) on the 3.9s and it's a couple of hundred less than the 4.0 one. I'll need to get a picture of one as I have it coming in to compare....
Show me. Maybe you should send it to the same place you sent the exhaust and tell them not to bill me :-)
Old 10-24-2011, 10:05 PM
  #25  
Viperbob1
Rennlist Member
 
Viperbob1's Avatar
 
Join Date: May 2002
Location: Tampa, FL
Posts: 8,675
Likes: 0
Received 11 Likes on 8 Posts
Default

The Sachs model is the one I was talking about. 3 pin unit. Yes if you money shift it will not self destruct like the other models (which I have still seen still blow motors). I have used it for YEARS (installed and sold maybe 100). Only seen one failure ever.
Old 10-24-2011, 10:39 PM
  #26  
911SLOW
Admin
Lifetime Rennlist
Member
 
911SLOW's Avatar
 
Join Date: Dec 2001
Location: Athens
Posts: 11,010
Likes: 0
Received 127 Likes on 100 Posts
Default

Alex send it to me, and i ll make an independent test..and post the results here

I broke the RSRs PP..
the 3.8s one will go down before Easter..
Old 10-25-2011, 12:35 AM
  #27  
stujelly
Rennlist Member
 
stujelly's Avatar
 
Join Date: Dec 2009
Location: Bakersfield, CA
Posts: 2,855
Received 54 Likes on 42 Posts
Default

Friend blew pressure plate in2010 rs. Warranty covered it with 4.0 clutch. I was told the 3.8 plate is riveted together. The 4.0 is threaded nuts and bolts.
Old 10-25-2011, 10:52 AM
  #28  
savyboy
Drifting
 
savyboy's Avatar
 
Join Date: Nov 2008
Location: Reno NV
Posts: 3,371
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by TRAKCAR
...and eat at the cracker barel. .
How I miss eating breakfast at Cracker Barrel They don't have them out here in NV/CA.

Cheesy oniony hashbrown casserole, greasy eggs, ham, gravy, biscuits with butter. I will probably live another 10 years but I sure do miss CB.

On topic, I have approx 10,000 track miles on original clutch with no problems. I checked the disk 6 months ago and it looked 80% new. FWIW. YMMV. I suspect driving style is a factor in disk longevity.
Old 10-25-2011, 11:04 AM
  #29  
Izzone
Nordschleife Master
 
Izzone's Avatar
 
Join Date: Dec 2008
Location: Florida
Posts: 7,342
Received 293 Likes on 148 Posts
Default

Originally Posted by savyboy
Originally Posted by TRAKCAR
...and eat at the cracker barel. .
How I miss eating breakfast at Cracker Barrel They don't have them out here in NV/CA.

Cheesy oniony hashbrown casserole, greasy eggs, ham, gravy, biscuits with butter. I will probably live another 10 years but I sure do miss CB.

On topic, I have approx 10,000 track miles on original clutch with no problems. I checked the disk 6 months ago and it looked 80% new. FWIW. YMMV. I suspect driving style is a factor in disk longevity.
Reter shifts and heel toes like my grandma.....me on the other hand drive like a sequential
Old 10-25-2011, 02:03 PM
  #30  
sharkster
Addict
Rennlist Member


Rennlist
Site Sponsor

 
sharkster's Avatar
 
Join Date: Oct 2002
Location: san jose, california
Posts: 7,427
Received 85 Likes on 38 Posts
Default

Originally Posted by TRAKCAR
Show me. Maybe you should send it to the same place you sent the exhaust and tell them not to bill me :-)
Hah... not a bad idea I am still going to wait and see if this new method instead of using the rivets that sheer is better first...

Originally Posted by Viperbob1
The Sachs model is the one I was talking about. 3 pin unit. Yes if you money shift it will not self destruct like the other models (which I have still seen still blow motors). I have used it for YEARS (installed and sold maybe 100). Only seen one failure ever.
Just saw one Depends on the amount of abuse and how high the rev but it's got the same rivetted style approach

Originally Posted by 911SLOW
Alex send it to me, and i ll make an independent test..and post the results here

I broke the RSRs PP..
the 3.8s one will go down before Easter..
For sure heh... I'm actually considering switching out the unit we use for this 4.0 version because if it's not using rivets it should be stronger


Quick Reply: Pressure plate and clutch 3.8 VS 4.0



All times are GMT -3. The time now is 10:43 AM.