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

Consolidated 991RS thread

Thread Tools
 
Search this Thread
 
Old 12-19-2014, 12:03 PM
  #2926  
TRAKCAR
Rennlist Member
Thread Starter
 
TRAKCAR's Avatar
 
Join Date: Jan 2008
Location: S. Florida
Posts: 29,338
Received 1,586 Likes on 734 Posts
Default

Originally Posted by kosmo
what are the benefits of a magnesium roof vs say CF? They are both light but is the former more durable???
Wondering the same..
Old 12-19-2014, 12:27 PM
  #2927  
1198r
Pro
 
1198r's Avatar
 
Join Date: Feb 2010
Location: Dubai
Posts: 720
Likes: 0
Received 0 Likes on 0 Posts
Default

^ see this article - will help understand benefits of magnesium over carbon:

http://www.precisiontandems.com/cat_...amagnesium.htm

I have Ducati Superleggera which has a magnesium frame - Ducati did lots of tests comparing carbon with aluminium and magnesium and found magnesium offered many benefits that carbon (lightness) offers along with Alu which allows the frame to flex - so the magnesium gave both qualities of each with lightness too - the problem they found with carbon was it was too stiff and therefore affected the handling; Alu was heavy and the project was all about lightness. I have to say, the bike handles amazing compared to the frame on the R bike - so the RS WILL be amazing I reckon.
Old 12-19-2014, 12:34 PM
  #2928  
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

My chemist buddy says that Sun light is very damaging to CF and the resin required to protect it is very expensive and adds weight. This kinda reminds of some yellowing of interior bits on past Porsches.
I've ridden a Magnesium bicycle and it does ride a little softer than a full CF bike.
Old 12-19-2014, 02:00 PM
  #2929  
DucatiSPS
Racer
 
DucatiSPS's Avatar
 
Join Date: Oct 2014
Location: Colleyville TX
Posts: 380
Received 61 Likes on 27 Posts
Default

Magnesium is cool lightweight stuff, just don't ignore it. Ask Mercedes about it....
Old 12-19-2014, 02:45 PM
  #2930  
GrantG
Addict
Rennlist Member

 
GrantG's Avatar
 
Join Date: Jun 2002
Location: Denver
Posts: 17,758
Received 4,719 Likes on 2,690 Posts
Default

Originally Posted by DucatiSPS
Magnesium is cool lightweight stuff, just don't ignore it. Ask Mercedes about it....
Porsche made both the engine crankcase and gearbox out of Magnesium on my 1973 911. They've been using the stuff for 45 years for major components.
Old 12-19-2014, 03:10 PM
  #2931  
Mvez
Rennlist Member
 
Mvez's Avatar
 
Join Date: Nov 2007
Location: Louisville, KY
Posts: 2,592
Likes: 0
Received 211 Likes on 94 Posts
Default

my 997 RS was a tight fit in my trailer, I can't imagine how hard its going to be to get one of these J-Lo booties in an enclosed trailer......
Old 12-19-2014, 03:19 PM
  #2932  
hf1
Banned
 
hf1's Avatar
 
Join Date: Apr 2012
Location: Northeast
Posts: 10,392
Likes: 0
Received 1,639 Likes on 1,122 Posts
Default

Originally Posted by Mvez
my 997 RS was a tight fit in my trailer, I can't imagine how hard its going to be to get one of these J-Lo booties in an enclosed trailer......
Good point. Probably would be a very tight fit even on an open Trailex. Anyone checked the dimensions?
Old 12-19-2014, 05:18 PM
  #2933  
TRAKCAR
Rennlist Member
Thread Starter
 
TRAKCAR's Avatar
 
Join Date: Jan 2008
Location: S. Florida
Posts: 29,338
Received 1,586 Likes on 734 Posts
Default

Yes, funny how the 964 can swing open the door with window frame easy access.. 997RS I could barely get out without window frame. Well at least I carpeted the trailer inside, but it will be tight.
Old 12-22-2014, 03:12 AM
  #2934  
csmarx
Instructor
 
csmarx's Avatar
 
Join Date: Jan 2012
Location: Santa Barbara, CA
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by kevin1244
Never heard of a GT3 bottoming out on suspension and certainly not due to weight (note that suspensions are rated for a car's weight - hard to bottom out unless you really slam it into the speed bump.) Mine never did. These cars are not heavy by any stretch of imagination, not the 3 nor 3RS to bottom out due to weight. There is something else going on or it is truly rubbing due to car being so low; may be tips of the exhaust? The 997 3 and 3 RS were about 40-50lb apart without use of carbon. With the use of carbon, I hope the target weight comes to 80-100lb less than the 3? Really hard to say. Kevin.
For what it's worth, I used to routinely bottom out my 996.2 GT3 Club Sport in the compression at the bottom of Fuchsröhre at the Nürburgring. We actually had to raise the suspension to counter that.

-Christian
Old 12-24-2014, 02:28 PM
  #2935  
Ronan
Rennlist Member
 
Ronan's Avatar
 
Join Date: Aug 2007
Location: Canada
Posts: 4,727
Received 110 Likes on 66 Posts
Default

Had not thought about the width on a trailer...I use an open Trailex, no problem with 997.2RS. Hopefully will not be a problem.
Old 12-25-2014, 04:04 PM
  #2936  
TRAKCAR
Rennlist Member
Thread Starter
 
TRAKCAR's Avatar
 
Join Date: Jan 2008
Location: S. Florida
Posts: 29,338
Received 1,586 Likes on 734 Posts
Default

What's the width 997RS VS 991TT?
Old 12-25-2014, 04:16 PM
  #2937  
bronson7
Nordschleife Master
 
bronson7's Avatar
 
Join Date: Nov 2014
Location: Ontario, Canada
Posts: 9,843
Likes: 0
Received 5 Likes on 5 Posts
Default

Originally Posted by TRAKCAR
What's the width 997RS VS 991TT?

72.91" vs 74.02"
Old 12-25-2014, 04:38 PM
  #2938  
mdrums
Race Director
 
mdrums's Avatar
 
Join Date: Mar 2006
Location: Tampa
Posts: 15,358
Received 179 Likes on 126 Posts
Default

Originally Posted by TRAKCAR
What's the width 997RS VS 991TT?
Porsche lists:
991 Turbo Width 74.02"
997GT3RS Width 72.91

Now I'm not sure if this is body panel width or tire track width but it gives you a good idea that the 991RS will be wider than the 997RS
Old 12-26-2014, 03:26 AM
  #2939  
TRAKCAR
Rennlist Member
Thread Starter
 
TRAKCAR's Avatar
 
Join Date: Jan 2008
Location: S. Florida
Posts: 29,338
Received 1,586 Likes on 734 Posts
Default

Thanks Mike!
That's wide ***..
Old 12-26-2014, 11:33 AM
  #2940  
tcsracing1
Rennlist Member
 
tcsracing1's Avatar
 
Join Date: May 2008
Location: Somewhere in a galaxy far, far away....
Posts: 17,106
Likes: 0
Received 256 Likes on 172 Posts
Default

I came across a white 991 Turbo in Boca last week. It appeared slightly lowered on custom wheels.

Being the same body as the upcomng RS, I could not help but visualize it with a large wing.... I think the new RS is going to have one hell of a presense on the street.


Quick Reply: Consolidated 991RS thread



All times are GMT -3. The time now is 08:36 AM.