Notices
991 GT3, GT3RS, GT2RS and 911R 2012-2019
Sponsored by:
Sponsored by:

No Slicks on 991 GT3!!

Thread Tools
 
Search this Thread
 
Old 09-16-2013, 09:53 AM
  #1  
Bob Rouleau

Still plays with cars.
Lifetime Rennlist
Member
Thread Starter
 
Bob Rouleau's Avatar
 
Join Date: Jul 2001
Location: Montreal
Posts: 15,078
Received 255 Likes on 119 Posts
Default No Slicks on 991 GT3!!

Technical training in the 991 GT3 emphasized NO SLICKS!
I don't know why exactly, Center Lock wheel/Hub weakness or something else but it is certainly disappointing!
Old 09-16-2013, 09:59 AM
  #2  
consolidated
Drifting
 
consolidated's Avatar
 
Join Date: Sep 2007
Location: Texas
Posts: 2,587
Received 11 Likes on 5 Posts
Default

DOT R's or real slicks? 6 pages, and no one gets out alive...
Old 09-16-2013, 10:06 AM
  #3  
Mike in CA
Race Director
 
Mike in CA's Avatar
 
Join Date: Jun 2001
Location: North Bay Area, CA
Posts: 11,969
Received 127 Likes on 67 Posts
Default

Did the tech training mention CL weakness as the reason specifically or is that speculation?

Will be an upset if this thread only goes 6 pages....casualties guaranteed...
Old 09-16-2013, 10:12 AM
  #4  
911rox
Rennlist Member
 
911rox's Avatar
 
Join Date: Jan 2008
Location: Regretfully not at a track... :(
Posts: 2,571
Received 24 Likes on 16 Posts
Default

Porsche up to their old tricks... "It's light years ahead of the old car but can't handle slicks" wtf??? 997.2 regular Carreras weren't even disallowed from running slicks to my knowledge...

ps. looking forward to the excuses that will be put forward to justify Porsche's position now... maybe its those Carrera Cup car bearings and the all new and improved CL design or the all new dry sump, motorsport engine? or is it the RWS that can't take the heat...
Old 09-16-2013, 10:19 AM
  #5  
orthojoe
Nordschleife Master
 
orthojoe's Avatar
 
Join Date: Nov 2010
Location: Bay Area
Posts: 7,804
Received 191 Likes on 94 Posts
Default

Maybe it has something to do with RWS.
Old 09-16-2013, 10:20 AM
  #6  
911rox
Rennlist Member
 
911rox's Avatar
 
Join Date: Jan 2008
Location: Regretfully not at a track... :(
Posts: 2,571
Received 24 Likes on 16 Posts
Default

Maybe it should be renamed the "GT3 SC" to reflect its new soft **** ethos?....
Old 09-16-2013, 10:39 AM
  #7  
frayed
Race Car
 
frayed's Avatar
 
Join Date: Mar 2004
Posts: 3,972
Likes: 0
Received 0 Likes on 0 Posts
Default

Probably the plastic coolant fittings.
Old 09-16-2013, 10:46 AM
  #8  
orthojoe
Nordschleife Master
 
orthojoe's Avatar
 
Join Date: Nov 2010
Location: Bay Area
Posts: 7,804
Received 191 Likes on 94 Posts
Default

Hoosier R6 are NOT slicks. Correct or incorrect?
Old 09-16-2013, 10:47 AM
  #9  
utkinpol
Rennlist Member
 
utkinpol's Avatar
 
Join Date: Jul 2009
Location: MA
Posts: 5,902
Received 22 Likes on 13 Posts
Default

Originally Posted by Bob Rouleau
Technical training in the 991 GT3 emphasized NO SLICKS!
I don't know why exactly, Center Lock wheel/Hub weakness or something else but it is certainly disappointing!
should be similar issue to R8 and any other cars with heavily involved CPUs into management of suspension, sticker tires and stiff springs require different software.
Old 09-16-2013, 10:47 AM
  #10  
utkinpol
Rennlist Member
 
utkinpol's Avatar
 
Join Date: Jul 2009
Location: MA
Posts: 5,902
Received 22 Likes on 13 Posts
Default

Originally Posted by orthojoe
Hoosier R6 are NOT slicks. Correct or incorrect?
compared to stock street tires traction they are slicks
Old 09-16-2013, 10:48 AM
  #11  
consolidated
Drifting
 
consolidated's Avatar
 
Join Date: Sep 2007
Location: Texas
Posts: 2,587
Received 11 Likes on 5 Posts
Default

I can understand if they exclude using a true RACE slick, Michelin, Pirelli or Hoosier R100, but not allowing DOT R's like a Hoosier A6/R6 will be a deal killer for many track junkies.
Old 09-16-2013, 10:51 AM
  #12  
kosmo
Race Director
 
kosmo's Avatar
 
Join Date: Nov 2009
Location: THE Republic
Posts: 10,594
Likes: 0
Received 6 Likes on 6 Posts
Default

slicks means more G's. So my bet is on sump/lubrication on this higher reving, untested, no mezger engine. There I said it.


BTW Corvette just came out that said: "Slicks? Sure. And we'll back it up w/ a warranty."
Old 09-16-2013, 10:59 AM
  #13  
modifier
Instructor
 
modifier's Avatar
 
Join Date: Aug 2013
Posts: 237
Likes: 0
Received 0 Likes on 0 Posts
Default

I hope someone can come up with a viable reason for this. Buzz kill. Pretty bad call from Porsche imo. Kind of like PCCBs not being fit for track use.

Sometimes. Those Germans. : /
Old 09-16-2013, 11:02 AM
  #14  
orthojoe
Nordschleife Master
 
orthojoe's Avatar
 
Join Date: Nov 2010
Location: Bay Area
Posts: 7,804
Received 191 Likes on 94 Posts
Default

Originally Posted by utkinpol
compared to stock street tires traction they are slicks
I understand that, but how does it rate when taking Bob's technical training info into account?

Originally Posted by consolidated
I can understand if they exclude using a true RACE slick, Michelin, Pirelli or Hoosier R100, but not allowing DOT R's like a Hoosier A6/R6 will be a deal killer for many track junkies.
Yes, this is what I would like to be clarified.
Old 09-16-2013, 11:04 AM
  #15  
jumper5836
Nordschleife Master
 
jumper5836's Avatar
 
Join Date: Mar 2004
Location: great white north
Posts: 8,531
Received 70 Likes on 47 Posts
Default

Summing it up.
sump/lubrication doesn't work properly in high g
CL design can't take high g
RWS can't take high g
cooling system doesn't work properly in high g
electric steering can't take high g


Quick Reply: No Slicks on 991 GT3!!



All times are GMT -3. The time now is 04:44 PM.