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Jun 4, 2008 7:11:56 PM

br d: Co-Pilot; Loc: Essex UK; Posts: 160, Gallery; Registered on: May 28, 2005

Tyre pressures?

What pressures are you most comfortable with? Warmed up, mine show about 3.2 rear and 2.8 front but looking at the (very confusing) sticker on the inside of the door it seems they should be less than this. I think they are recommending 2.7 on the rears, although I'm probably reading it wrong.

brad

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Jun 4, 2008 7:22:40 PM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: br d

Re: Tyre pressures?

Best pressure is going to be different depending on # of people in the car & amount of stuff you have w/ you. The higher the amount of extra load (people plus stuff) the higher the pressures should be. Believe there is a section in the manual that covers this. I've found that COLD 33 lbs front/39 lbs rear is best for me. Usually it's only me in the car w/ out luggage.

ps: Dont go by the TPMS pressure, it's really just for approximate lbs. I use a digital tire pressure gauge that I keep in the car. This is the one I use from Craftsman. It has a large illuminated readout & swivel head which makes things easier:
http://www.sears.com/shc/s/p_10153_12605_02823013000P?mv=rr

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Jun 4, 2008 7:34:40 PM

br d: Co-Pilot; Loc: Essex UK; Posts: 160, Gallery; Registered on: May 28, 2005; Reply to: STRADALE

Re: Tyre pressures?

Well Strad 99% of the time it's just me with no luggage or extra weight and I'm only 11 stone. So far I have found the TPMS to be pretty accurate when compared to an actual pressure gauge. I had to have a puncture repaired shortly after I got the car and the fitter said the TPMS works by bluetooth, each tyre containing it's own bluetooth transmitter, is that true?

brad

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Jun 4, 2008 8:15:15 PM

Alex_997TT: Rennteam Master; Loc: Reading , United Kingdom; Posts: 3320, Gallery; Registered on: Nov 20, 2005; Reply to: br d

Re: Tyre pressures?

Change the settings to PSI, and you want 33 on the fronts and 39 on the rears.

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Jun 9, 2008 1:30:34 PM

Uber-porker: Junior; Loc: Minnesota; Posts: 142, Gallery; Registered on: Feb 15, 2006; Reply to: br d

Re: Tyre pressures?

br d....I understand that N rated tires shouldn't/can't be repaired without impairing very high speed saftey. Aren't all 997TTs equiped with N rated tires.

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Jun 9, 2008 1:35:47 PM

TB993tt: Rennteam Pro; Loc: manchester , United Kingdom; Posts: 2280, Gallery; Registered on: Jul 22, 2002; Reply to: Uber-porker

Re: Tyre pressures?

Quote:
Uber-porker said:
br d....I understand that N rated tires shouldn't/can't be repaired without impairing very high speed saftey.

That is no problem for Br d, he only drives below 70mph

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Jun 9, 2008 2:00:23 PM

br d: Co-Pilot; Loc: Essex UK; Posts: 160, Gallery; Registered on: May 28, 2005; Reply to: Uber-porker

Re: Tyre pressures?

Quote:
Uber-porker said:
br d....I understand that N rated tires shouldn't/can't be repaired without impairing very high speed saftey. Aren't all 997TTs equiped with N rated tires.

Not sure, first I've heard of it. The place I took it too seemed very professional and they didn't mention anything about it being unsafe. As someone else said, I don't do very high speeds anyway, I wouldn't go into 3 digits. I'll have to check it out because I may be selling the car soon, it's only 3 months old and I'm already getting itchy feet!

brad

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Jun 9, 2008 2:40:29 PM

Uber-porker: Junior; Loc: Minnesota; Posts: 142, Gallery; Registered on: Feb 15, 2006; Reply to: br d

Re: Tyre pressures?

N rated tires are addressed in the owner's manual.

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