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Old 07-08-2019 | 12:25 PM
  #8011  
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Originally Posted by Bardman
Hi Chris - AP talks here about the 4.0 being used in other cars as well. Any info you have on what this might be? The next 911T? Will it be hybrid? Is there already a speculation thread for this somewhere?
Yes, I think a model like the 911T could get this motor. And since the manual gearboxes for the 911 platform are not torque-limited to the degree that the mid-engine box is, I would expect a higher output (in peak torque and possibly hp too).

BTW, I saw/heard the 718 GT4 lapping the Ring in April and it sounds nice, but definitely more restrained than 981 version.
Old 07-08-2019 | 12:35 PM
  #8012  
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Originally Posted by GrantG
Yes, I think a model like the 911T could get this motor. And since the manual gearboxes for the 911 platform are not torque-limited to the degree that the mid-engine box is, I would expect a higher output (in peak torque and possibly hp too).

BTW, I saw/heard the 718 GT4 lapping the Ring in April and it sounds nice, but definitely more restrained than 981 version.
I highly doubt (but certainly hope I am proven wrong as it would be quite nice) that any 992 variant will have a NA engine short of the GT3/RS. The new 4.0NA engine is rumored to form the basis for the 992 Turbo (i.e. adding 2 snails on it for a 4.0TT setup). A NA Carrera T would be sweet (and befitting in a way) but don't see it happening.
Old 07-08-2019 | 01:04 PM
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Originally Posted by Dr. Ferdinand
I highly doubt (but certainly hope I am proven wrong as it would be quite nice) that any 992 variant will have a NA engine short of the GT3/RS. The new 4.0NA engine is rumored to form the basis for the 992 Turbo (i.e. adding 2 snails on it for a 4.0TT setup). A NA Carrera T would be sweet (and befitting in a way) but don't see it happening.
When AP was asked (in Catchpole Carfection video) about the GT4/Spyder 4.0 making it to another 911 model, he smiled knowingly as if it will happen. Don't know if such a model would be the 911T or yet another variant...

While I think it is likely that the next Turbo would use this motor as its basis, I didn't get the impression that this is what AP meant...
Old 07-08-2019 | 07:16 PM
  #8014  
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He is talking about the cayman 6...
Old 07-08-2019 | 09:22 PM
  #8015  
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Originally Posted by JIMMY JAMES
He is talking about the cayman 6...
I thought so too. Boxster 6, too.
Old 07-08-2019 | 10:22 PM
  #8016  
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The exhaust noise is about as loud as the tyre noise, so pretty quiet.
Old 07-08-2019 | 10:55 PM
  #8017  
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Engine noise inside the cabin sounds great. Exhaust is clearly muffled due to muffler and GPF - should be an easy mod to correct
Old 07-09-2019 | 04:16 AM
  #8018  
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Originally Posted by GrantG
When AP was asked (in Catchpole Carfection video) about the GT4/Spyder 4.0 making it to another 911 model, he smiled knowingly as if it will happen.
911 was not mentioned once in that part of the video. He said new 4.0L in GT4 could be used other “programs”, but not in as “sharp” of package.

Originally Posted by JIMMY JAMES
He is talking about the cayman 6...
There is now a $20k gap to fill between the GTS and GT4.

Exhaust look familiar?



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Old 07-09-2019 | 06:57 AM
  #8019  
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^^^was that the carscoops "touring" feed from feb?
Old 07-09-2019 | 08:11 AM
  #8020  
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Originally Posted by moveswiftly
Engine noise inside the cabin sounds great. Exhaust is clearly muffled due to muffler and GPF - should be an easy mod to correct
We shall see about that, everyone points out all sorts of complexity related to the GPF, backpressure and engine management systems. It might require messing with the ECU which means warranty loss.
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Old 07-09-2019 | 08:58 AM
  #8021  
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Originally Posted by emix75
We shall see about that, everyone points out all sorts of complexity related to the GPF, backpressure and engine management systems. It might require messing with the ECU which means warranty loss.
Most who swap exhausts/headers tend to re-map anyway, so can't see it being too complicated for the aftermarket to address.

The main hassle is having to do this to a new car, and effectively throwing away all the good engineering 'value' (that you are paying for) that Porsche put into the car for having developed the system in the first place, and all the integration and calibration work that goes with it - probably explains some bit of the price hike.

Maybe easier to find some other way to generate a little more noise - a bypass pipe of sorts to give it a bit more wail that doesn't entirely replace the whole exhaust set-up.

Ah, actually, I've solved it - buy a 981 GT4...
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Old 07-09-2019 | 10:07 AM
  #8022  
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Originally Posted by blipit
911 was not mentioned once in that part of the video. He said new 4.0L in GT4 could be used other “programs”, but not in as “sharp” of package.


There is now a $20k gap to fill between the GTS and GT4.

Exhaust look familiar?




All future 718 will probably share the same exhaust...just like it happened in the 981 and earlier Cayman.
Got to keep the cost down.....besides having a new exhaust that will work with the new GPFs

Last edited by jmartpr; 07-09-2019 at 10:31 AM.
Old 07-09-2019 | 10:15 AM
  #8023  
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Originally Posted by emix75
We shall see about that, everyone points out all sorts of complexity related to the GPF, backpressure and engine management systems. It might require messing with the ECU which means warranty loss.

I don't think the GPF adds any complexity and it's a stand alone item.
If you look at the driveline pictures for the 718 GT4 they moved the secondary O2 sensors to the middle of the cat...that means that they are reading post cat without worrying about the GPF.
I bet you you could replace the whole B Pipe with one sans the GPF without any problem.
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Old 07-09-2019 | 10:20 AM
  #8024  
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Damn, those Euro-spec cars sound terrible! Some of you may like the muffled note. To me, it is just awful! Just close your eyes and hear the exhaust notes. Then, ask yourself, does it sound like the note of a fine sports car being driven spiritedly on the track, let alone Porsche's latest and greatest? To my ears, they sound like a Camry or Accord being hustled in anger. Did we wait all these years for these?? If the US-spec cars sound like these, I'll be out! I'll reserve my judgement until I hear US-spec cars. So far, it is not feeling good!!
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Old 07-09-2019 | 10:42 AM
  #8025  
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Originally Posted by jmartpr
I don't think the GPF adds any complexity and it's a stand alone item.
If you look at the driveline pictures for the 718 GT4 they moved the secondary O2 sensors to the middle of the cat...that means that they are reading post cat without worrying about the GPF.
I bet you you could replace the whole B Pipe with one sans the GPF without any problem.
I'm not really in the know about the engineering part, I was just repeating what other information I gathered on this forum. There were some posts on here and on the 991gt3 forum about the GPF issues and something related to back pressure, if I understood correctly the car will not function properly without the necessary back pressure that the GPF generates. I really hope you are right though, I'd remove the GPFs immediately if it will be possible without loosing the warranty on the car. We'll just have to wait and see what solutions tuners will come up with.

ANyway I've been listening to multiple videos of the 718 gt4 just to get a feel for the sound. I decided it is not exciting enough. 981 sounds a lot more dramatic.
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