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's Avatar
TRAKCAR
Thread Starter
Rennlist Member
 
Joined: Jan 2008
Posts: 29,452
Likes: 1,694
From: S. Florida
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's Avatar
1198r
Pro
 
Joined: Feb 2010
Posts: 720
Likes: 0
From: Dubai
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's Avatar
kosmo
Race Director
 
Joined: Nov 2009
Posts: 10,594
Likes: 6
From: THE Republic
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's Avatar
DucatiSPS
Racer
 
Joined: Oct 2014
Posts: 394
Likes: 67
From: Colleyville TX
Default

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

 
Joined: Jun 2002
Posts: 18,317
Likes: 5,251
From: Denver
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's Avatar
Mvez
Rennlist Member
 
Joined: Nov 2007
Posts: 2,665
Likes: 275
From: Louisville, KY
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's Avatar
hf1
Rennlist Member
 
Joined: Apr 2012
Posts: 10,393
Likes: 1,640
From: Northeast
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's Avatar
TRAKCAR
Thread Starter
Rennlist Member
 
Joined: Jan 2008
Posts: 29,452
Likes: 1,694
From: S. Florida
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's Avatar
csmarx
Instructor
 
Joined: Jan 2012
Posts: 109
Likes: 0
From: Santa Barbara, CA
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's Avatar
Ronan
Rennlist Member
 
Joined: Aug 2007
Posts: 4,727
Likes: 110
From: Canada
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's Avatar
TRAKCAR
Thread Starter
Rennlist Member
 
Joined: Jan 2008
Posts: 29,452
Likes: 1,694
From: S. Florida
Default

What's the width 997RS VS 991TT?
Old 12-25-2014 | 04:16 PM
  #2937  
bronson7's Avatar
bronson7
Nordschleife Master
 
Joined: Nov 2014
Posts: 9,843
Likes: 5
From: Ontario, Canada
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's Avatar
mdrums
Race Director
 
Joined: Mar 2006
Posts: 15,358
Likes: 183
From: Tampa
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's Avatar
TRAKCAR
Thread Starter
Rennlist Member
 
Joined: Jan 2008
Posts: 29,452
Likes: 1,694
From: S. Florida
Default

Thanks Mike!
That's wide ***..
Old 12-26-2014 | 11:33 AM
  #2940  
tcsracing1's Avatar
tcsracing1
Rennlist Member
 
Joined: May 2008
Posts: 17,108
Likes: 259
From: Somewhere in a galaxy far, far away....
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 05:15 PM.