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Georg Kacher calling it - 992 GT3 is turbo (410kw)

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Old 03-28-2018, 12:20 PM
  #181  
GrantG
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Originally Posted by robmypro
Question. If you are on it, would the emission be significantly different between a NA and FI engine? I guess I am wondering how jumping on a 500 hp NA engine is going to produce less pollution than a 500 hp FI engine?
When driven vigorously, the smaller displacement turbocharged motor uses just as much fuel and pollutes just as much as the NA motor.

But in the types of protocols that have been used to simulate city and highway driving, the engine is driven very mildly and there has been a big advantage to having a smaller displacement turbo motor (that never gets near full boost in the testing cycles).

Seems this is starting to change though (where the testing will more closely approximate normal driving).
Old 03-28-2018, 03:01 PM
  #182  
Terrence
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Originally Posted by djcxxx
I wouldn't bet either way. Even if Porsche intends to stick w/ NA for the GT cars the capriciousness of government regulatory bodies can easily derail even the best laid plans.
Exactly. Ferrari would have preferred to stay NA with the 458 replacement, but there is only so much you can do to increase output given a particular exterior dimension and weight of a particular engine on a particular segment of a sports car lineup. Couple that with even more stringent emission regulations every year, and even they had to go FI.

With particulate filters, I bet that will decrease hp and sound. Porsche doesn't really want to make a new GT3 with less hp, so the only way is to go FI or hybrid. Even if they can somehow magically reduce the weight by 1000 pounds, the marketing department will veto it as a new GT3 cannot make less hp than the old GT3.

Just my guess. We will see.
Old 03-28-2018, 03:04 PM
  #183  
Terrence
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Just because in the eyes of the government, if you are having a better MPG, you are polluting less. and FI given the same hp output will usually have a higher MPG.
Old 03-28-2018, 04:11 PM
  #184  
GrantG
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Originally Posted by Terrence
Even if they can somehow magically reduce the weight by 1000 pounds, the marketing department will veto it as a new GT3 cannot make less hp than the old GT3.
If they could magically lose 1,000 pounds, I would be first in line to pay for a new NA 400 hp GT3...
Old 03-28-2018, 05:16 PM
  #185  
Freddie Two Bs
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Originally Posted by texascarlover
But since the 992 GT3 is coming out in likely 2020 I dunno. Lot can change in that amount of time.
I'd be surprised if the 992 GT3 project isn't already 90% locked down at this point...
Old 03-28-2018, 05:30 PM
  #186  
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Originally Posted by rick brooklyn
I'd be surprised if the 992 GT3 project isn't already 90% locked down at this point...
Its not....lots to finalize
Old 03-28-2018, 05:44 PM
  #187  
rosenbergendo
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From what I was told 90% or more is accurate at the secret 918 intro event in Miami a few years ago when speaking to some of the design people and engineers.
Old 03-28-2018, 06:32 PM
  #188  
sccchiii
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Originally Posted by rosenbergendo
From what I was told 90% or more is accurate at the secret 918 intro event in Miami a few years ago when speaking to some of the design people and engineers.

I can tell you that if someone said it happened at event, a few things might need to be defined as "90%".....of what? A few years ago.....992 GT3 planning team within GT dept had maybe 90% of a "target list" proposed, engine spec possibilities, HP targets, content, and broad specs like options, tires, wheels, etc based on what was known but so much changes from quarter to quarter when development and testing is proceeding. 90% "finalized" to me means you could do a hypothetical configurator today and most of what you see is accurate and only options might change and that simply isn't the case. An example is, carbon fiber wheels are on target spec to be offered as a option, but that can't be 90% today because many other departments must sign off on the ok to proceed to make the final production cut. So again, to say 90% is finalized to me is not a accurate statement as of today and certainly even less so a couple years ago.

Last edited by sccchiii; 03-28-2018 at 06:50 PM.
Old 03-28-2018, 07:25 PM
  #189  
Freddie Two Bs
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Originally Posted by sccchiii
. So again, to say 90% is finalized to me is not a accurate statement as of today and certainly even less so a couple years ago.
Fair enough. But don't you think a fundamental crux like aspirated engine or turbo engine is very much locked down at this point?
Old 03-28-2018, 07:36 PM
  #190  
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Originally Posted by rick brooklyn
Fair enough. But don't you think a fundamental crux like aspirated engine or turbo engine is very much locked down at this point?
yes, NA/turbo has been decided.
Old 03-28-2018, 09:15 PM
  #191  
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Originally Posted by GrantG
But in the types of protocols that have been used to simulate city and highway driving, the engine is driven very mildly and there has been a big advantage to having a smaller displacement turbo motor (that never gets near full boost in the testing cycles).

Seems this is starting to change though (where the testing will more closely approximate normal driving).
I think this is part of the reason why the regular auto mode in the 991.1 GT3 is such a grandma mode. The car gets to 7th gear at around 45 mph in normal driving.
Old 03-28-2018, 10:24 PM
  #192  
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Originally Posted by SKY57
Wife is happy to see this. Now you can stuck with your .2 GT3 for a while.....
Same here. So there is no more, "What is your next P car".
Old 03-28-2018, 10:44 PM
  #193  
ipse dixit
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Originally Posted by sccchiii


yes, NA/turbo has been decided.
Bingo.

Debating this is a bit like pissing in the wind. During a tornado.
Old 03-29-2018, 07:46 AM
  #194  
Freddie Two Bs
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Originally Posted by sccchiii
yes, NA/turbo has been decided.
And the winner is...?
Old 03-29-2018, 10:04 AM
  #195  
robmypro
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Originally Posted by GrantG
When driven vigorously, the smaller displacement turbocharged motor uses just as much fuel and pollutes just as much as the NA motor.

But in the types of protocols that have been used to simulate city and highway driving, the engine is driven very mildly and there has been a big advantage to having a smaller displacement turbo motor (that never gets near full boost in the testing cycles).

Seems this is starting to change though (where the testing will more closely approximate normal driving).
That is what i thought, Grant. So two high performance cars, one FI and the other NA, with the same HP, driven as intended, will produce the same pollution. In fact, because the FI shows less pollution when driven in a manner that almost no owner will drive, they can add even more HP to it and still pass emissions tests. Then, when driven as intended, the FI car puts out even more pollution than the NA car.



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