04-15-2006, 01:37 PM
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#1
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Registered User
Join Date: Aug 2005
Location: Kalamazoo, Michigan
Posts: 71
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Well...not that easy for a rookie, I guess.
It states GAWR Front/Rear 1709/2072 lbs.
How do I translate that?
__________________
2004 Boxster S (sold to my son...so still in family)
Now have a 2006 Cayman S
Basalt Black/Stone Grey
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04-15-2006, 01:45 PM
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#2
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Registered User
Join Date: Jun 2005
Location: El Paso
Posts: 1,147
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Maybe it is different on your car...but if you look inside where the door connects to the car when you close it...there should be a little chart there lists the type of tires and pressures. If you can't find it, send me your tire data and I will look it up on mine.
__________________
'05 987 Basalt Black/Sand Beige
5 spd, 18" wheels
AH-64 Apache
RC-12 Guardrail
RC-7 Crazy Hawk
"If the wings are traveling faster than
the fuselage, it's probably a helicopter--
and therefore, unsafe" --Unknown
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04-15-2006, 01:57 PM
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#3
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Registered User
Join Date: Aug 2005
Location: Kalamazoo, Michigan
Posts: 71
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I've looked everywhere...doors, hoods etc. and there isn't a chart like you mention. The stats on the car are: 2004 Box S and the tires are Michelin Pilot Sport Radial X 265/35 ZR 18.
Any help is greatly appreciated.
__________________
2004 Boxster S (sold to my son...so still in family)
Now have a 2006 Cayman S
Basalt Black/Stone Grey
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04-16-2006, 08:44 AM
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#4
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Registered User
Join Date: Jun 2005
Location: El Paso
Posts: 1,147
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According to my chart...37 psi on the rear and 32 psi on the front. You can also call tirerack.com and they will give you the tire pressure also. Hope this helps.
__________________
'05 987 Basalt Black/Sand Beige
5 spd, 18" wheels
AH-64 Apache
RC-12 Guardrail
RC-7 Crazy Hawk
"If the wings are traveling faster than
the fuselage, it's probably a helicopter--
and therefore, unsafe" --Unknown
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04-16-2006, 08:47 AM
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#5
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Registered User
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
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Hi,
The new DOT Mandated inflation figures are for a fully loaded vehicle - the Legacy of the Firestone/Ford Explorer Rollovers. As such, these are most likely not good for you if you don't have the Fuel Tank Full, both Trunks Full and ride with a Passeneger - ALL THE TIME!
With the low profile Tires, don't go below 34PSI or you could damage a Rim and don't go higher than say 39PSI. The Fronts should be equal to or lower than the Rears. Anywhere in-between these guidlines will be fine. I use 35PSI Front and 37PSI Rear - Hope this helps...
Happy Motoring!... Jim'99
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04-16-2006, 08:49 AM
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#6
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Registered User
Join Date: Jun 2005
Location: El Paso
Posts: 1,147
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Good to know on the fronts...the chart on my car recommends 30 psi for the tires I'm running (fully loaded). Do you still think I will sustain rim damage?
__________________
'05 987 Basalt Black/Sand Beige
5 spd, 18" wheels
AH-64 Apache
RC-12 Guardrail
RC-7 Crazy Hawk
"If the wings are traveling faster than
the fuselage, it's probably a helicopter--
and therefore, unsafe" --Unknown
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04-17-2006, 06:02 PM
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#7
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Registered User
Join Date: Aug 2005
Location: Central Florida
Posts: 182
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My '03 S chart says 29 front 36 rear for all sizes. I'm running 32/36 with 18's and find it handles and rides very well. I bump the fronts 4 lbs and the rear 2 lbs for autocross. I haven't done a DE in this car so I don't know what I'll set them at but I'll use my 17's for the track anyway.
__________________
Cogito Ergo Zoom!
I Think, therefore I go fast 
Current Porsches:
2004 Cayenne Turbo
2003 Boxster S
Past Porsches:
1989 911 turbo
1981 911SC
1984 944
1973 914
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04-17-2006, 06:44 PM
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#8
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Registered User
Join Date: Jul 2002
Location: No.Shore, MA
Posts: 50
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My '02 has a manual/handbook that says 29 front, 34 in the rear, regardless of the mfr. I've been using that as a guide with no problem and a smooth ride for the daily drive. BTW, I have a set of Michelin Pilots. Hope this helps.
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04-17-2006, 08:09 PM
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#9
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Registered User
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
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Quote:
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Originally Posted by Rail26
Good to know on the fronts...the chart on my car recommends 30 psi for the tires I'm running (fully loaded). Do you still think I will sustain rim damage?
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Hi,
It all depends upon the condition of your roads. Up here, PotHoles are a way of life until July so I run them a little higher - better safe than sorry, especially since it's a $300+ mistake if you're wrong...
Happy Motoring!... Jim'99
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