Notices
964 Forum
Sponsored By:
Sponsored By:

America GS Consolidated Thread

 
Old 09-03-2012, 06:28 PM
  #196  
Captain Ahab Jr.
User
 
Captain Ahab Jr.'s Avatar
 
Join Date: Sep 2010
Location: Oxfordshire
Posts: 570
Default

Originally Posted by Robert Linton View Post
The carbon muffler was made of a material capable of enduring approximately 300 C (572 F) and was combined with an insulation material. Having said that, during the development of the engine, I was also working on a potential military vehicle and, in this connection, came across a material that can take 1200 C. As a result, the entire exhaust system, from the head to the tail pipe, will be made of this material. As such, the carbon fiber muffler saw only very limited use, i.e., not enough to say it was sufficient for constant and continued use.
Bob, really enjoyed reading your build and hope you don't mind me adding some comments.

I think you'll find when designing and making a full exhaust system using this new hi-temp composite material it will weigh more than if you made it from hydro-formed, fabricated 0.4-0.6mm inconel.

I've seen part of a header system made from the material you describe about 7yrs ago and the results were quite disappointing. Technology moves on so hope you can make it work.

I know of only one material out there that has this sort of performance, without giving it away would I be right in saying its made only by a certain French company??
Captain Ahab Jr. is offline  
Old 09-03-2012, 06:49 PM
  #197  
Robert Linton
Addict
Rennlist Member

 
Robert Linton's Avatar
 
Join Date: Mar 2002
Posts: 2,869
Default

Re Pyromeral, you are correct, it is not appropriate for a variety of reasons.
Robert Linton is offline  
Old 09-12-2012, 11:58 AM
  #198  
GG Allin
Addict
Rennlist Member
 
GG Allin's Avatar
 
Join Date: Jan 2005
Location: ORD
Posts: 7,344
Default

GG Allin is offline  
Old 11-27-2012, 09:12 AM
  #199  
jesze
User
 
jesze's Avatar
 
Join Date: Aug 2012
Posts: 21
Default

^Good work Robert.. Eccentric but good.
jesze is offline  
Old 03-10-2013, 10:17 AM
  #200  
Nurburger
Addict
Rennlist Member
 
Nurburger's Avatar
 
Join Date: Oct 2007
Location: Racking up air miles....
Posts: 2,963
Default

Just went through this thread for the first time & I must say that I'm stunned by the engineering & execution.

I have a question regarding the steering wheels on both the GS and 930 (assuming your car is the one on a recent Pano cover); were these 'special wishes' wheels? I'm asking because I have one also & have never been certain if it was an original factory part. Yours are the only others I've ever seen.

Thank you for the eye candy.
Nurburger is offline  
Old 08-22-2013, 04:19 PM
  #201  
HiWind
Super User
 
HiWind's Avatar
 
Join Date: Nov 2011
Location: Cape Town, South Africa
Posts: 4,260
Default

Something must be cooking ... It's been too quiet round these parts
HiWind is offline  
Old 08-22-2013, 04:30 PM
  #202  
Wachuko
Professor of Pending Projects
Rennlist Member
Thread Starter
 
Wachuko's Avatar
 
Join Date: Nov 2001
Location: Orlando, FL
Posts: 9,881
Default

I always look for updates here... I hope it is all well with Robert and we can see an update soon.
Wachuko is offline  
Old 10-01-2013, 09:43 PM
  #203  
Cupcar#12
Addict
Rennlist Member

 
Cupcar#12's Avatar
 
Join Date: Apr 2002
Location: Apex, NC
Posts: 2,424
Default

I'll check on the latest engine test with Bob...
Cupcar#12 is offline  
Old 10-06-2013, 01:54 PM
  #204  
Robert Linton
Addict
Rennlist Member

 
Robert Linton's Avatar
 
Join Date: Mar 2002
Posts: 2,869
Default

There is a tremendous amount going on. Porsche Engineering and I have a potential defined path forward which includes, among other things, entirely new four valve heads, a new valve train including pneumatic valve springs and hollow titanium valves and, of course, a modern ECU with the inputs and outputs required for the engine. In short, it could be a rebirth of the air cooled engine at between 500 and 520 normally aspirated HP. The only question now is should it be done and the potential commercial application of it.
Robert Linton is offline  
Old 10-06-2013, 03:56 PM
  #205  
JasonAndreas
Technical Guru
Rennlist Member

 
JasonAndreas's Avatar
 
Join Date: May 2002
Location: USVI
Posts: 7,672
Default

Originally Posted by Robert Linton View Post
a new valve train including pneumatic valve springs
Have you looked at the "Intelligent Valve Actuation" system from Camcon?
JasonAndreas is offline  
Old 10-06-2013, 04:25 PM
  #206  
Robert Linton
Addict
Rennlist Member

 
Robert Linton's Avatar
 
Join Date: Mar 2002
Posts: 2,869
Default

Looks like a development part.
Robert Linton is offline  
Old 10-06-2013, 10:17 PM
  #207  
ACSGP
User
 
ACSGP's Avatar
 
Join Date: Mar 2009
Location: Singapore
Posts: 623
Default

Originally Posted by Robert Linton View Post
There is a tremendous amount going on. Porsche Engineering and I have a potential defined path forward which includes, among other things, entirely new four valve heads, a new valve train including pneumatic valve springs and hollow titanium valves and, of course, a modern ECU with the inputs and outputs required for the engine. In short, it could be a rebirth of the air cooled engine at between 500 and 520 normally aspirated HP. The only question now is should it be done and the potential commercial application of it.
At those numbers, Robert, how do you cool the engine effectively? Especially when idling?

best
Andrew
ACSGP is offline  
Old 10-07-2013, 08:57 AM
  #208  
Robert Linton
Addict
Rennlist Member

 
Robert Linton's Avatar
 
Join Date: Mar 2002
Posts: 2,869
Default

That, indeed, is one of the engineering challenges.
Robert Linton is offline  
Old 10-07-2013, 05:11 PM
  #209  
[email protected]
Former Vendor
 
Join Date: Dec 2012
Posts: 351
Default

Pneumatic valve actuation would be awesome. I can see the benefits of systems that are retro-fittable to current engine designs from a fuel consumption/emissions standpoint.

Chris@Fabspeed is offline  
Old 10-07-2013, 05:54 PM
  #210  
robt964
Addict
Rennlist Member
 
robt964's Avatar
 
Join Date: Jan 2013
Location: Bucks
Posts: 1,606
Default

Great video! Got to be *the* most major fundermental change for the combustion engine ever. Imagine mapping your own cam profiles like you do for ignition and fueling :-)
robt964 is offline  

Thread Tools
Search this Thread
Quick Reply: America GS Consolidated Thread


Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: