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Curious2
Newbie


Joined: 03 Jun 2016
Posts: 38



PostPosted: Fri Apr 21, 2017 5:31 pm    Post subject: Comfort Tyre Pressures or Normal Reply with quote

Been using comfort tyre pressures since I got the vehicle. On a road trip next week to Dinslaken and beyond. Even on the autobahn I guess any speeds of over 160 mph will be brief and intermittent. Wondering if I should increase pressures to NORMAL range or just leave at comfort setting as virtually all motoring will be under 160 mph which Porsche handbook says is ok for comfort setting. Thoughts .....
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DRZ911
Suzuka


Joined: 13 Mar 2013
Posts: 1110
Location: Belfast


PostPosted: Fri Apr 21, 2017 7:02 pm    Post subject: Reply with quote

For sustained 100mph+ driving all day long on the autobahn, would certainly recommend increasing the pressures to the NORMAL setting. In my opinion, it adds to the feeling of precision at speed.
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alex yates
Shanghai
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Joined: 06 Mar 2014
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Location: Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Fri Apr 21, 2017 8:13 pm    Post subject: Reply with quote

'Comfort tyre pressure'.........how flocculent Cat
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6appeal
Nürburgring


Joined: 02 Jan 2016
Posts: 381



PostPosted: Fri Apr 21, 2017 8:46 pm    Post subject: Reply with quote

never knew there were any different choices!? Dont know
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weejimmy
Monza


Joined: 26 Mar 2014
Posts: 223
Location: Bucks


PostPosted: Sat Apr 22, 2017 5:38 pm    Post subject: Reply with quote

TPS screen on the TFT offers you the choice and then tells you the correct pressures for either. I run comfort and put the suspension into Sport via PASM when I want it a little more pointy. Works well!
 
  
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911TEL
Imola


Joined: 29 Oct 2007
Posts: 829
Location: Inverness & Oman

2011 Porsche 997 Turbo S

PostPosted: Sat Apr 22, 2017 6:04 pm    Post subject: Reply with quote

I am confused ...what is ' comfort' tyre pressure ?

Where does it detail that setting and description in the manual?

I just see the 2 settings
'2 passengers'
'2 passengers plus baggage '

Nothing about 'Comfort ' ..... Surely the pressures are not defined as this ..?

T
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911TEL
Imola


Joined: 29 Oct 2007
Posts: 829
Location: Inverness & Oman

2011 Porsche 997 Turbo S

PostPosted: Sat Apr 22, 2017 6:05 pm    Post subject: Reply with quote

I am confused ...what is ' comfort' tyre pressure ?

Where does it detail that setting and description in the manual?

I just see the 2 settings
'2 passengers'
'2 passengers plus baggage '

Nothing about 'Comfort ' ..... Surely the pressures are not defined as this ..?

T
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Gorsh
Trainee


Joined: 24 Oct 2015
Posts: 59
Location: Isle of Man


PostPosted: Sat Apr 22, 2017 6:06 pm    Post subject: Reply with quote

911TEL wrote:
I am confused ...what is ' comfort' tyre pressure ?

Where does it detail that setting and description in the manual?

I just see the 2 settings
'2 passengers'
'2 passengers plus baggage '

Nothing about 'Comfort ' ..... Surely the pressures are not defined as this ..?

T


It must be the 991 models that have this?
 
  
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6appeal
Nürburgring


Joined: 02 Jan 2016
Posts: 381



PostPosted: Sat Apr 22, 2017 6:20 pm    Post subject: Reply with quote

weejimmy wrote:
TPS screen on the TFT offers you the choice and then tells you the correct pressures for either. I run comfort and put the suspension into Sport via PASM when I want it a little more pointy. Works well!


You've got me intrigued... never noticed that. I'll give it a press tomorrow.
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DRZ911
Suzuka


Joined: 13 Mar 2013
Posts: 1110
Location: Belfast


PostPosted: Sat Apr 22, 2017 7:21 pm    Post subject: Reply with quote

Think this feature was introduced on the 991.1.

On my car, there is a COMFORT box to tick. This normally equates to 2.1 bar in the fronts and 2.3 bar in the rears (when warm).

If this COMFORT box is unticked, the pressures shown are at STANDARD, which roughly requires an extra 0.2 bar in the rears only (i.e. 2.5 bar total).

If the FULL LOAD box is then ticked, all 4 tyres need a further 0.5 bar added over STANDARD (2.6 bar in the fronts and 3.0 bar in the rears).

STANDARD offers a firmer response from the rear end over COMFORT. Worth trying to see it it suits your driving style.
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911TEL
Imola


Joined: 29 Oct 2007
Posts: 829
Location: Inverness & Oman

2011 Porsche 997 Turbo S

PostPosted: Sat Apr 22, 2017 7:32 pm    Post subject: Reply with quote

I'm going to go through the menus on mine then ... I hope I don't see ' Comfort ' on it...on a Turbo S ??

'Standard' I could live with but ' comfort' .... no ,...
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Six speed
Trainee


Joined: 20 Feb 2015
Posts: 76
Location: Essex/Hertfordshire border


PostPosted: Sun Apr 23, 2017 9:04 am    Post subject: Reply with quote

911TEL wrote:
I'm going to go through the menus on mine then ... I hope I don't see ' Comfort ' on it...on a Turbo S ??

'Standard' I could live with but ' comfort' .... no ,...


This feature wasn't on my 997 but it is on my 991
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Martian
Magny-Cours


Joined: 18 Mar 2009
Posts: 2619
Location: Bury St. Edmunds

2007 Porsche 997 Turbo

PostPosted: Mon May 01, 2017 2:37 pm    Post subject: Reply with quote

My daily driver (non Porsche) has the option of economy or comfort pressures! Very Happy
 
  
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6appeal
Nürburgring


Joined: 02 Jan 2016
Posts: 381



PostPosted: Tue May 02, 2017 10:18 pm    Post subject: Reply with quote

Its all pretty irrelevant system to me... depends what your load and max speed in the car is (and you're talking over 160mph so autobahn or track)... if you run higher pressure it will wear the centre of the tyres quicker, if you run lower pressure it will wear the outer edges of the tyre quicker... if you run the correct pressure to your load, you will wear evenly and have a consistent contact patch and grip.
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Disco
Estoril


Joined: 13 May 2008
Posts: 3519
Location: Hertfordshire

2010 Porsche 997 GT3

PostPosted: Wed May 03, 2017 4:30 pm    Post subject: Reply with quote

If you are filling the back with weighty luggage then put a bit more pressure in. Otherwise don't bother IMHO. When I first started taking my previous car to the 'ring I was going down the main straight at over 170mph on PS2s at 38-39psi hot and they were fine. 39 cold (which IIRC is the comfort pressure) will be several lbs more when moving at speed - I see no cause for concern there.
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911TEL
Imola


Joined: 29 Oct 2007
Posts: 829
Location: Inverness & Oman

2011 Porsche 997 Turbo S

PostPosted: Wed May 03, 2017 9:33 pm    Post subject: Reply with quote

6appeal wrote:
Its all pretty irrelevant system to me... depends what your load and max speed in the car is (and you're talking over 160mph so autobahn or track)... if you run higher pressure it will wear the centre of the tyres quicker, if you run lower pressure it will wear the outer edges of the tyre quicker... if you run the correct pressure to your load, you will wear evenly and have a consistent contact patch and grip.


+1 for this logic , that is my understanding and it's all basic stuff to me ....

I see the logic in two load settings but not the comfort description although it's probably the same thing in reality .....maybe a filler for the PCM menus was required ....!
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997 Gen 2 Turbo S Basalt Black -BBS CHR, Kline inconel exhaust, Polished Bliss air freshener...
Cayenne S diesel 850 N/ m torque!!!! Jet black
SL 55 AMG Obsidian Black
Brompton S2L Black edition
(All current)
 
  
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