First drive in 991 Speedster
05-06-2019 | 11:40 PM
#78
Instructor
Joined: Aug 2018
Posts: 166
Likes: 19
Another question stout..
And I know I’m being very basic/redundant with my questions, but on NA (US) cars, is the mesh a REPLACEMENT for the mufflers or is it IN ADDITION TO in order to simulate pressure backflow like the OPF?
Thanks
And I know I’m being very basic/redundant with my questions, but on NA (US) cars, is the mesh a REPLACEMENT for the mufflers or is it IN ADDITION TO in order to simulate pressure backflow like the OPF?
Thanks
05-07-2019 | 12:26 AM
#81
Drifting
Joined: Mar 2010
Posts: 2,795
Likes: 202
From: CHI / ATL
All 1,948 Speedsters produced will have a new exhaust configuration: headers with integrated cats, otto particulate filter where the side mufflers used to be, and a center muffler
In markets with less stringent emissions protocol, the filter housing will remain, and there will be mesh inside that will create backpressure (per Pete), and potentially also attenuate horsepower and sound (unknown for now)
05-07-2019 | 03:53 AM
#83
Burning Brakes
Joined: Dec 2017
Posts: 866
Likes: 475
Many thanks Pete for going to a lot of effort to give us Rennlisters so much info.As i suspected the ITBs and OTF come as a pair and the former counteracts some of the negatives caused the latter..With this pairing confirmed am i correct in assuming that this is the same setup used in the second batch EU only 991.2 GT3 RSs..I have a vested interest as i have an UK RS coming late summer..
05-07-2019 | 04:46 AM
#84
Three Wheelin'
Joined: Apr 2012
Posts: 1,410
Likes: 21
From: London
Originally Posted by Taffy66
Many thanks Pete for going to a lot of effort to give us Rennlisters so much info.As i suspected the ITBs and OTF come as a pair and the former counteracts some of the negatives caused the latter..With this pairing confirmed am i correct in assuming that this is the same setup used in the second batch EU only 991.2 GT3 RSs..I have a vested interest as i have an UK RS coming late summer..
05-07-2019 | 06:31 AM
#85
Race Car
Joined: Aug 2003
Posts: 3,691
Likes: 576
From: Le Mans, France
I hope that the link to the German configurator will work:
https://cc.porsche.com/icc_euro/ccCa...start%2fall%2f
https://cc.porsche.com/icc_euro/ccCa...start%2fall%2f
05-07-2019 | 06:34 AM
#86
Racer
Joined: Dec 2016
Posts: 448
Likes: 32
From: Europe
Many thanks Pete for going to a lot of effort to give us Rennlisters so much info.As i suspected the ITBs and OTF come as a pair and the former counteracts some of the negatives caused the latter..With this pairing confirmed am i correct in assuming that this is the same setup used in the second batch EU only 991.2 GT3 RSs..I have a vested interest as i have an UK RS coming late summer..
Is there any production at all at this moment 3 rs w eurospec??
When will the generation 3 rs enginespecs be official?
05-07-2019 | 08:46 AM
#89
Rennlist Member
Joined: Feb 2006
Posts: 13,685
Likes: 1,912
From: Wishing I Was At The Track
I hope that the link to the German configurator will work:
https://cc.porsche.com/icc_euro/ccCa...start%2fall%2f
https://cc.porsche.com/icc_euro/ccCa...start%2fall%2f
Looks like Lizard Green is going to be an option.
05-07-2019 | 10:08 AM
#90
Thread Starter
Rennlist Member
Joined: Feb 2007
Posts: 4,917
Likes: 1,328
From: ^ The Bay Bridge
Super glad if some info was helpful—running to next flight, but…
You sir, are from a beautiful part of the world. Simply fantastic—and some of the roads are FABULOUS! When are we doing Smokies IT?
Ha. It's a value thread, after all...
Yes, 510 PS or 502 hp, or so I was told.
No extra weight. Apparently the same.
Correct.
Did you say food tips? I will help Mooty by driving his CGT north....
Side mufflers deleted, mesh goes in, center muffler does the muffling, 22 pounds saved. 
Yes. Need to see how the sound thing plays out with US cars.
You are welcome! The pairing is critical, and there is more to it than that. The ITBs are not going to be an easy or even attractive upgrade for an existing car, imo with the info I have so far.
Ok, off to the next flight!
You're in Porto Cervo, my second home! Pics you posted are literally walking distance from my parent's home.. you have some amazing driving roads there to take. If you're allowed, head into the hinterlands, some amazing twisties!
Thanks for the info. Exciting to hear about the itb's excellent throttle response because my humble bet is they will show up on 992 GT3.
Thanks for the info. Exciting to hear about the itb's excellent throttle response because my humble bet is they will show up on 992 GT3.
Ha. It's a value thread, after all...
This is my interpretation:
All 1,948 Speedsters produced will have a new exhaust configuration: headers with integrated cats, otto particulate filter where the side mufflers used to be, and a center muffler
In markets with less stringent emissions protocol, the filter housing will remain, and there will be mesh inside that will create backpressure (per Pete), and potentially also attenuate horsepower and sound (unknown for now)
All 1,948 Speedsters produced will have a new exhaust configuration: headers with integrated cats, otto particulate filter where the side mufflers used to be, and a center muffler
In markets with less stringent emissions protocol, the filter housing will remain, and there will be mesh inside that will create backpressure (per Pete), and potentially also attenuate horsepower and sound (unknown for now)
Many thanks Pete for going to a lot of effort to give us Rennlisters so much info.As i suspected the ITBs and OTF come as a pair and the former counteracts some of the negatives caused the latter..With this pairing confirmed am i correct in assuming that this is the same setup used in the second batch EU only 991.2 GT3 RSs..I have a vested interest as i have an UK RS coming late summer..
Ok, off to the next flight!