How did they alter the 981 to create the GTS?

How did they alter the 981 to create the GTS?

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Clevers

Original Poster:

1,171 posts

201 months

Friday 25th May 2018
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I have a 981 S and while driving out of our cul de sac last weekend a friend of the neighbour came in with her GTS. We briefly chatted with windows down and it was the first time that I have heard the cars side by side. The GTS does sound better, so what is it that Porsche have done to get that sound over a 981 S?

Thanks

Twinfan

10,125 posts

104 months

Friday 25th May 2018
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Fuelling map. More in the exhaust to give pops and crackles. The exhaust hardware is the same.

Krobar

283 posts

107 months

Friday 25th May 2018
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I think there is a sound actuator in the GTS too.

Twinfan

10,125 posts

104 months

Friday 25th May 2018
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Only a pipe for induction noise behind the seats - you only hear it in the cabin smile

CEREC1

31 posts

194 months

Saturday 26th May 2018
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Twinfan said:
Only a pipe for induction noise behind the seats - you only hear it in the cabin smile
Can this be blocked off to reduce the cabin sound?
I’m a bit old to be impressed by ‘boy racer’ sound effects.
Don’t get me wrong the exhaust sounds are sublime.

CEREC1

31 posts

194 months

Saturday 26th May 2018
quotequote all
Twinfan said:
Only a pipe for induction noise behind the seats - you only hear it in the cabin smile
Can this be blocked off to reduce the cabin sound?
I’m a bit old to be impressed by ‘boy racer’ sound effects.
Don’t get me wrong the exhaust sounds are sublime.

Clevers

Original Poster:

1,171 posts

201 months

Saturday 26th May 2018
quotequote all
Twinfan said:
Only a pipe for induction noise behind the seats - you only hear it in the cabin smile
No, listening to the GTS external noise alongside my 981 S, the GTS exhaust sound is different. It is a deeper sound with more burble about it.

Twinfan

10,125 posts

104 months

Saturday 26th May 2018
quotequote all
i was referring to the sound actuator specifically. That you can only hear in the cabin and it provides a bit induction noise. You can't really remove it unless you remove the piping behind the seats.

Externally an S and a GTS sound different and it's all in the fuelling map combined with the general tune of the engine (slightly higher in the GTS).

jonttt

681 posts

171 months

Saturday 26th May 2018
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CEREC1 said:
Twinfan said:
Only a pipe for induction noise behind the seats - you only hear it in the cabin smile
Can this be blocked off to reduce the cabin sound?
I’m a bit old to be impressed by ‘boy racer’ sound effects.
Don’t get me wrong the exhaust sounds are sublime.
Just don’t press the sport button ie leave the PSE off. The car is relatively muted then. If thats still too “sporty” a sound for you you are in the wrong car !

Ps you can still drive it “sportily” without PSE on ;-)

n4aat

458 posts

212 months

Sunday 27th May 2018
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jonttt said:
Just don’t press the sport button ie leave the PSE off. The car is relatively muted then. If thats still too “sporty” a sound for you you are in the wrong car !

Ps you can still drive it “sportily” without PSE on ;-)
Although not pressing the sport button changes the characteristics of the engine. One of which is to reduce engine braking which feels dreadful to dangerous when pressing on.

S666SBD

190 posts

228 months

Friday 1st June 2018
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Twinfan said:
Fuelling map. More in the exhaust to give pops and crackles. The exhaust hardware is the same.
According to a Porsche Exhaust Specialist in the US ..... The 718 GTS exhaust system is different to the previous 981 / GT4 sports exhaust .

" different exhaust and pick up points " . They have presumably investigated this during development of new 718 systems .

Twinfan

10,125 posts

104 months

Friday 1st June 2018
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Bound to be different though isn't it? It's fitted to a turbo four not a naturally aspirated six!

bcr5784

7,109 posts

145 months

Friday 1st June 2018
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n4aat said:
Although not pressing the sport button changes the characteristics of the engine. One of which is to reduce engine braking which feels dreadful to dangerous when pressing on.
In Normal mode (unless you switch it off with the stop/start button) the car coasts in neutral. It's great for economy on the motorway, but can be disconcerting if you are expecting engine braking. In truth it's not that much more noticeable than some diesels or two-stroke motorbikes which both have little engine braking.

n4aat

458 posts

212 months

Friday 1st June 2018
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bcr5784 said:
n4aat said:
Although not pressing the sport button changes the characteristics of the engine. One of which is to reduce engine braking which feels dreadful to dangerous when pressing on.
In Normal mode (unless you switch it off with the stop/start button) the car coasts in neutral. It's great for economy on the motorway, but can be disconcerting if you are expecting engine braking. In truth it's not that much more noticeable than some diesels or two-stroke motorbikes which both have little engine braking.
Yep. My 3 series does it in economy, or whatever the setting is. Great on the motorway.

But it’s pretty difficult to drive through corners smoothly without a bit of engine braking to tighten the line when you are expecting it.

dreamcar

1,067 posts

111 months

Friday 1st June 2018
quotequote all
n4aat said:
bcr5784 said:
n4aat said:
Although not pressing the sport button changes the characteristics of the engine. One of which is to reduce engine braking which feels dreadful to dangerous when pressing on.
In Normal mode (unless you switch it off with the stop/start button) the car coasts in neutral. It's great for economy on the motorway, but can be disconcerting if you are expecting engine braking. In truth it's not that much more noticeable than some diesels or two-stroke motorbikes which both have little engine braking.
Yep. My 3 series does it in economy, or whatever the setting is. Great on the motorway.

But it’s pretty difficult to drive through corners smoothly without a bit of engine braking to tighten the line when you are expecting it.
I tend to switch to “normal” mode on motorways.... i’ve found that when cruising in 7th, you can deactivate the coasting mode temporarily by using the downshift paddle, without changing down.

n4aat

458 posts

212 months

Saturday 2nd June 2018
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dreamcar said:
n4aat said:
bcr5784 said:
n4aat said:
Although not pressing the sport button changes the characteristics of the engine. One of which is to reduce engine braking which feels dreadful to dangerous when pressing on.
In Normal mode (unless you switch it off with the stop/start button) the car coasts in neutral. It's great for economy on the motorway, but can be disconcerting if you are expecting engine braking. In truth it's not that much more noticeable than some diesels or two-stroke motorbikes which both have little engine braking.
Yep. My 3 series does it in economy, or whatever the setting is. Great on the motorway.

But it’s pretty difficult to drive through corners smoothly without a bit of engine braking to tighten the line when you are expecting it.
I tend to switch to “normal” mode on motorways.... i’ve found that when cruising in 7th, you can deactivate the coasting mode temporarily by using the downshift paddle, without changing down.
I will have to try that.

Sorry for the thread drift Clevers.

DJMC

3,438 posts

103 months

Saturday 2nd June 2018
quotequote all
dreamcar said:
I tend to switch to “normal” mode on motorways.... i’ve found that when cruising in 7th, you can deactivate the coasting mode temporarily by using the downshift paddle, without changing down.
When in "normal" mode, coasting can also be deactivated by cancelling the auto stop/start using the button in the centre console.

If not using Sport (which disables stop/start and coasting) I always press the stop/start cancel button when I set off.