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Old 03-12-2016 | 11:50 PM
  #2266  
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Originally Posted by Robert Linton
For years, I have done work related to reducing weight in certain vehicles including Porsches. Having taking a quite look at the R, I think it reasonably possible to reduce its weight by from 50 to 60kg.
Very interested to learn how/more, could you possibly post please? Thanks
Old 03-12-2016 | 11:51 PM
  #2267  
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Originally Posted by Robert Linton
For years, I have done work related to reducing weight in certain vehicles including Porsches. Having taking a quite look at the R, I think it reasonably possible to reduce its weight by from 50 to 60kg.
Originally Posted by A432
True, I haven't actually weighed the parts because my car is a factory no A/C, no radio R.
This number is based on measured weights of Cayman R's and Porsche's claim that the A/C on the R is 26lb. (12kg)
The two variants weigh in at 42lb. different, which puts the no radio option at ~16lb.
On my car, it has no speakers and no wiring to the doors, rear panels or windshield antenna, so it's actually a different harness in it too.


Love that inside!
Old 03-13-2016 | 12:10 AM
  #2268  
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Are we really saving 100 lbs to go to the track and c&c once per month??

Gimmie a radio and A/C. I like music and i'm fat
Old 03-13-2016 | 06:39 AM
  #2269  
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Originally Posted by A432
True, I haven't actually weighed the parts because my car is a factory no A/C, no radio R.
This number is based on measured weights of Cayman R's and Porsche's claim that the A/C on the R is 26lb. (12kg)
The two variants weigh in at 42lb. different, which puts the no radio option at ~16lb.
On my car, it has no speakers and no wiring to the doors, rear panels or windshield antenna, so it's actually a different harness in it too.


Correct! The PCM on the 911 R weighs 8 kg including everything. I guess nobody could feel the difference, it's more about what type of feeling in the car you want. I like the idea of not having a radio. Other road race icons such as e.g. the 2.7 RS lightweight and the F40 also did not have a radio!
Old 03-13-2016 | 08:11 AM
  #2270  
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Originally Posted by Stockholm996TT
Correct! The PCM on the 911 R weighs 8 kg including everything. I guess nobody could feel the difference, it's more about what type of feeling in the car you want. I like the idea of not having a radio. Other road race icons such as e.g. the 2.7 RS lightweight and the F40 also did not have a radio!
Totally agree with this^ all about feel and not so much to do with weight.

Personally I would keep the radio and AC if I bought an R. Car is made for the street and I think the 991 interior looks better with a screen. The 997 is kind of in between. My 4.0 is radio delete and I think it looks ok and adds to the RS feel.

Last edited by 997rs4.0; 03-13-2016 at 08:38 AM.
Old 03-13-2016 | 12:33 PM
  #2271  
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Originally Posted by A432
Correct, never said wet.
6sp. R's were ~2860 with no fuel, no A/C and no radio, ~2900 with radio and A/C and no fuel, zero option S's were 2960 dry.
There is an easy 150-160lb. that can be removed while keeping the car streetable. Anyone interested can pm me about the setup.
That is 2700-2750lb. depending on radio-A/C config. with no fuel. Weighed it many times.
Hehehe, no you didn't.
Old 03-13-2016 | 01:16 PM
  #2272  
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Of course, rave426 is correct. As was my mother said, "You can get from Point A to Point B just as well in a Buick". The reason to save weight is frankly because of feel, and in the case of the R in particular, it is also about heritage and fun (remember the original R weighed approximately 1800 lbs) and because you can.

Given this, in reducing weight, certain areas are better than others, if one were to reduce the weight of the R, the following areas might first be preferable:

1. rear weight;
2. higher up rear weight;
3. unsprung weight;
4. rotating weight;

With this in mind, and given you loose automotive weight ounces at a time, I first looked at:

One-Piece Forged Magnesium Wheels
Lightweight Alternator
Lightweight Starter
DR-25 (M Spec) Wiring Harness
Lightweight Specialty Alloy Rear Axles with 10 Ceramic Ball CVs
Carbon Fiber Retractable Rear Spoiler
Carbon Fiber Induction System
Carbon Fiber Oil Tank
Lightweight Hoses
Aluminum Metal Matrix Composite Engine Pulleys
Wire Electro-Discharge Machined Specialty Alloy Transmission Output Flanges
Titanium Suspension Springs
Carbon Fiber Anti Roll Bars
Full Titanium Exhaust
Titanium Front Hood and Engine Compartment Lid Hinges

Of course, much more could be done with cost being the major limiting factor.

Last edited by Robert Linton; 03-15-2016 at 04:22 PM.
Old 03-13-2016 | 01:54 PM
  #2273  
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Originally Posted by MDKK
Love that inside!
Thanks!
Old 03-13-2016 | 03:48 PM
  #2274  
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Originally Posted by Robert Linton
Of course, rave426 is correct. As was my mother, "You can get from Point A to Point B just as well in a Buick". The reason to save weight is frankly because of feel, and in the case of the R in particular, it is also about heritage and fun (remember the original R weighed approximately 1800 lbs) and because you can.

Given this, in reducing weight, certain areas are better than others, if one were to reduce the weight of the R, the following areas might first be preferable:

1. rear weight;
2. higher up rear weight;
3. unsprung weight;
4. rotating weight;

With this in mind, and given you loose automotive weight ounces at a time, I first looked at:

One-Piece Forged Magnesium Wheels
Lightweight Alternator
Lightweight Starter
DR-25 (M Spec) Wiring Harness
Lightweight S;pecialty Alloy Rear Axles with 10 Ceramic Ball CVs
Carbon Fiber Retractable Rear Spoiler
Carbon Fiber Induction System
Carbon Fiber Oil Tank
Lightweight Hoses
Aluminum Metal Matrix Composite Engine Pulleys
Wire Electro-Discharge Machined Specialty Alloy Transmission Output Flanges
Titanium Suspension Springs
Carbon Fiber Anti Roll Bars
Full Titanium Exhaust
Titanium Front Hood and Engine Compartment Lid Hinges

Of course, much more could be done with cost being the major limiting factor.
Ha ha love it! Wouldn't one be better off with Al hinges?
Old 03-13-2016 | 03:59 PM
  #2275  
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My C2s always turned in better OTW home from Total Wine.
Old 03-13-2016 | 07:22 PM
  #2276  
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Originally Posted by lessthan3mph
(Turn up the volume)



One photo from a series, as seen around Zuffenhausen on autogespot:



That has to be one of the best video commercials that Porsche has made... brilliant!

I like everything about this car....
Old 03-13-2016 | 08:24 PM
  #2277  
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Originally Posted by Robert Linton
For years, I have done work related to reducing weight in certain vehicles including Porsches. Having taking a quite look at the R, I think it reasonably possible to reduce its weight by from 50 to 60kg.
I've read your other posts...mindbogglingly exquisite craftsmanship...
Old 03-13-2016 | 08:47 PM
  #2278  
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Thank you very much.

As to the 911R and the spirit behind it. It wonderfully intones both Porsche's past and its future. And it is a real Porsche unlike the increasing number of recreated cars that others are offering today which, though however nice they may look, are still, in essense, tuner cars.

But back to the 911R. No doubt if Porsche had time (as has been noted by Herr Preuninger, the R had a very accelerated gestation period), PAG could have created a "Weissach Package" for it. But as this did not happen, it would be fun to build such a package if enough people around the world were interested.
Old 03-13-2016 | 08:52 PM
  #2279  
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Though this obviously was a different engine, this is a picture of the carbon fiber induction system and oil tank that we supplied for the factory RSR's some years ago and is an example of what could be done for the new R.
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Old 03-13-2016 | 09:43 PM
  #2280  
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^^^Interesting info.


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