The 718 GT4 might be arriving sooner than you think!

The 718 GT4 might be arriving sooner than you think!

Author
Discussion

Twinfan

10,125 posts

105 months

Thursday 19th April 2018
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Some theories are suggesting the addition of a particle filter and changes in noise level regulations have led to the car being quieter and more muted than expected. How true that is I don't know, but it may explain the unexpected exhaust tone if it's naturally aspirated....

TDT

4,943 posts

120 months

Thursday 19th April 2018
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Twinfan said:
Some theories are suggesting the addition of a particle filter and changes in noise level regulations have led to the car being quieter and more muted than expected. How true that is I don't know, but it may explain the unexpected exhaust tone if it's naturally aspirated....
Interesting point... we all know that cars will be getting quieter - maybe this will be the future sound signature for Porsche NA Boxer 6's

Fokker

3,460 posts

223 months

Thursday 19th April 2018
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Twinfan said:
Some theories are suggesting the addition of a particle filter and changes in noise level regulations have led to the car being quieter and more muted than expected. How true that is I don't know, but it may explain the unexpected exhaust tone if it's naturally aspirated....
You might well have hit the nail on the head there...

My GT4 is ridiculously loud but if it was quieter I'd not be happy at all...

danm89

36 posts

146 months

Thursday 19th April 2018
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anonymous said:
[redacted]

Thanks for your input.

Fokker

3,460 posts

223 months

Friday 20th April 2018
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Ok confirmation again today from Masseuse that it’s not a turbo. 100%.

So there’s no point deliberation any further. As Twinfan work out, it’s probably quieter due to the particle filter, which will be a shame. More profits for the aftermarket makers.

PhantomPH

4,043 posts

226 months

Friday 20th April 2018
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Fokker said:
Ok confirmation again today from Masseuse that it’s not a turbo. 100%.

So there’s no point deliberation any further. As Twinfan work out, it’s probably quieter due to the particle filter, which will be a shame. More profits for the aftermarket makers.
So can it be assumed that the likes of Sharkwerks will be able to do something about that without causing MOT/emissions problems?

Fokker

3,460 posts

223 months

Friday 20th April 2018
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PhantomPH said:
So can it be assumed that the likes of Sharkwerks will be able to do something about that without causing MOT/emissions problems?
I'd imagine so but the Porsche warranty aspect will still be too much of an issue for some to take the plunge...

PhantomPH

4,043 posts

226 months

Friday 20th April 2018
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Fokker said:
PhantomPH said:
So can it be assumed that the likes of Sharkwerks will be able to do something about that without causing MOT/emissions problems?
I'd imagine so but the Porsche warranty aspect will still be too much of an issue for some to take the plunge...
A guy I know had a Sharkwerks system fitted to his 991.2 GT3 within days of taking delivery. Equally, a few years back I knew a guy who bought a brand new Nissan GTR. He was told about careful running in and how (if you remember the tales at the time) that using launch control during that period would invalidate his warranty. That guy used LC twice on his way home from the dealer!

I sometimes think that 'warranty' only really matters to those of us who are using a bit more of their disposable income to buy something special. winkbiggrin

av185

18,514 posts

128 months

Friday 20th April 2018
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PhantomPH said:
He was told about careful running in and how (if you remember the tales at the time) that using launch control during that period would invalidate his warranty. That guy used LC twice on his way home from the dealer!
So presumably the ex PEC cars including GTs Porsche having endured major abuse from day 1 and 2000+ launch starts from new and retailed at various OPCs across the country are sold without warranty.

No.

av185

18,514 posts

128 months

Saturday 21st April 2018
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anonymous said:
[redacted]
thumbup

TrackNutz

164 posts

77 months

Saturday 21st April 2018
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Very good points raised regarding the GPF. I hadn't even thought about this and seeing as we've never heard a car officially with the new technology we have no idea on how this affects acoustics.

My point on possible flat 4 was relating to an equal length manifold, take away the Subaru warble and add a GPF then it's a possibility. The videos posted don't quite sound like anything we've heard before.

The possibility of a F6T the more I think about it, are slim. The dimensions are the same as the previous MA1 engine, but I know for a fact they would need a very special solution for turbo placement for one reason, spark plug replacement. The job on a 981 is tight enough, but add a turbo into that 15cm gap will be almost impossible. Mount them elsewhere, only place will be after the driveshafts, throttle response will be terrible and architecture will be messy.

F6 N/A with GPF is my new bet.

PhantomPH

4,043 posts

226 months

Saturday 21st April 2018
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av185 said:
anonymous said:
[redacted]
thumbup
I was indeed!

To stick with the Nissan, that guy used his like it was a £6k Fiesta from Autotrader. By contrast, my neighbour bought a GTR and it hardly ever left his drive. He even bought a well used old Subaru Forester that became his daily car because the costs of using the GTR (including mileage related increased depreciation, short servicing intervals, etc, etc) just caught him out completely.

It’s that age old thing about being able to afford to buy a car not always meaning you can afford to run it.

Anyway...

Fokker

3,460 posts

223 months

Monday 23rd April 2018
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TrackNutz said:
Very good points raised regarding the GPF. I hadn't even thought about this and seeing as we've never heard a car officially with the new technology we have no idea on how this affects acoustics.

My point on possible flat 4 was relating to an equal length manifold, take away the Subaru warble and add a GPF then it's a possibility. The videos posted don't quite sound like anything we've heard before.

The possibility of a F6T the more I think about it, are slim. The dimensions are the same as the previous MA1 engine, but I know for a fact they would need a very special solution for turbo placement for one reason, spark plug replacement. The job on a 981 is tight enough, but add a turbo into that 15cm gap will be almost impossible. Mount them elsewhere, only place will be after the driveshafts, throttle response will be terrible and architecture will be messy.

F6 N/A with GPF is my new bet.
The masseuse has confirmed this so you win your bet smile


Twinfan

10,125 posts

105 months

Tuesday 24th April 2018
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More video of the Spyder in action here: https://www.auto-motor-und-sport.de/video/porsche-...

Romo

320 posts

117 months

Tuesday 24th April 2018
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I do not know how to interpreter this sound. It`s weird to say the least.

Anyway, I surely want to belief Fokkers Masseuse. But I`ll first have to see and than believe


GT4P

5,215 posts

186 months

Tuesday 24th April 2018
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To my ear that sounds awful!

Twinfan

10,125 posts

105 months

Tuesday 24th April 2018
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It's weired isn't it? Really low and bassy, like a turbo, but not as low and bassy as the 718 running around alongside it.

Is it just massive volume reduction as per the new regulations and it's hit the upper EQ range harder than the low end?

Fokker

3,460 posts

223 months

Tuesday 24th April 2018
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Its a weird sound. You'd think turbo charged but apparently not.
I can only think its the OPF - 'Otto Particle filter' as they call it at Porsche, dulling the sound.

TDT

4,943 posts

120 months

Tuesday 24th April 2018
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Note is definitely muffled, so that is with particulate filter or at least one turbo.

There was one run up the revs where it sounded like a 6 of old from about 36sec to 40secs.
But then the downshift at 46secs... the burbles and tone sounds like a more refined, more specially tuned F4T would - not more boost - but better internals, equal length headers.





Edited by TDT on Tuesday 24th April 21:41

Swimfinz

315 posts

109 months

Tuesday 24th April 2018
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That IS a weird sounding motor....!!

You’d have to go with turbo really: the pops/bangs/deep muffled tone.... Not like ANYTHING N/A I’ve ever heard....

Can this “Particulate Filter” thingy REALLY make such a huge difference to engine sound....?? So much so it sounds most definitely like a turbo...?!? I’d really have thought not.....