Notices
997 Forum 2005-2012
Sponsored by:
Sponsored by:

Correct tyre pressures

Thread Tools
 
Search this Thread
 
Old 08-05-2006, 08:16 PM
  #1  
irish guitar
Rennlist Member
Thread Starter
 
irish guitar's Avatar
 
Join Date: Jan 2006
Location: New Hampshire
Posts: 1,104
Likes: 0
Received 36 Likes on 14 Posts
Default Correct tyre pressures

Hello all. I know that the manual suggests 37 front and 44 rear, but when the tyres warm up that's 43/4 front and 50/52 rear according to my TPMS. I took the car on some twisties today (Lake Hughes Rd., - great driving road!) and the tyres squealed through every turn. Do any of you guys run less pressure than that? Thanks all.
Old 08-05-2006, 08:19 PM
  #2  
dstrimbu
Burning Brakes
 
dstrimbu's Avatar
 
Join Date: Feb 2006
Location: Chicago area, IL USA
Posts: 1,128
Likes: 0
Received 0 Likes on 0 Posts
Default

I've been running 37/44, Irish. PS2 tires, no squeal issues. I don't have TPMS, but I've checked the tires hot and am seeing about a 6psi increase, so we're in the same boat.

I have 3,500 miles on the C4S... the PS2s are wearing evenly, but FAST!

-don
Old 08-06-2006, 12:12 AM
  #3  
gpjli2
Three Wheelin'
 
gpjli2's Avatar
 
Join Date: Feb 2006
Posts: 1,412
Likes: 0
Received 4 Likes on 4 Posts
Default

I'm running 33/39 cold (at 70 degrees) These are the pressures recommended for 2 persons/no baggage Feels right to me
Old 08-06-2006, 12:28 AM
  #4  
mdrums
Race Director
 
mdrums's Avatar
 
Join Date: Mar 2006
Location: Tampa
Posts: 15,358
Received 180 Likes on 127 Posts
Default

I am running the stock 33/39 pressures. I just got my car yesterday and drove it home from the dealer and then check it pressures this moring and they had it at 40/46 so I lowered them to the stock settings. the car now goes over the highway expansion joints much better in the turns/on/off ramps
Old 08-06-2006, 02:49 AM
  #5  
irish guitar
Rennlist Member
Thread Starter
 
irish guitar's Avatar
 
Join Date: Jan 2006
Location: New Hampshire
Posts: 1,104
Likes: 0
Received 36 Likes on 14 Posts
Default

Originally Posted by dstrimbu
I've been running 37/44, Irish. PS2 tires, no squeal issues. I don't have TPMS, but I've checked the tires hot and am seeing about a 6psi increase, so we're in the same boat.

I have 3,500 miles on the C4S... the PS2s are wearing evenly, but FAST!

-don
Thanks all. I've also noticed that my old tyre pressure gauge gives me a much different reading than TPMS. I'll trust the latter, but I do think I should lower pressure - especially for throwing it through bends! By the way I forgot to mention, my car's wearing Pirellis, for what it's worth.
Old 08-06-2006, 04:05 AM
  #6  
icon
Three Wheelin'
 
icon's Avatar
 
Join Date: Jan 2006
Location: Longboat Key, FL
Posts: 1,698
Received 4 Likes on 2 Posts
Default

the guitar man is back?
welcome home!
finally get to put some miles on the new one!

jeff
Old 08-06-2006, 06:44 AM
  #7  
irish guitar
Rennlist Member
Thread Starter
 
irish guitar's Avatar
 
Join Date: Jan 2006
Location: New Hampshire
Posts: 1,104
Likes: 0
Received 36 Likes on 14 Posts
Default

Originally Posted by icon
the guitar man is back?
welcome home!
finally get to put some miles on the new one!

jeff
I have a week to reach 2000 miles. I'm at 1350. Think I'll make it? More to the point; will my tyres last?

Trending Topics

Old 08-06-2006, 11:16 AM
  #8  
PogueMoHone
Addict
Rennlist Member

 
PogueMoHone's Avatar
 
Join Date: Nov 2002
Posts: 3,802
Likes: 0
Received 0 Likes on 0 Posts
Default Singing tires!

Singing tires are happy tires, so goes the motto at PDE!

You need to get up in the middle of the night when the ambient temp is about 68 degrees, and with a race style (accurate) tire pressure guage, set the tires to exactly 33/39. This is called Porsche passion

Then after the tires come up to temp, measure what it says on the TPMS and keep the readings for future reference...Forget about "micro" adjustments and keep the the TPMS turned off, otherwise it will drive you crazy, because of minute differences side to side, etc. Example, which side of the car faces the sun!

Seriously, keep it at 33/39 and forget about it, then "sing" away!
Old 08-06-2006, 11:23 AM
  #9  
SilverSteel
Three Wheelin'
 
SilverSteel's Avatar
 
Join Date: May 2006
Location: TEXAS
Posts: 1,874
Received 258 Likes on 142 Posts
Default

I've noticed mine screaming in the corners, too. No worries.
Old 08-06-2006, 02:44 PM
  #10  
Paul S.
Pro
 
Paul S.'s Avatar
 
Join Date: Apr 2002
Location: dallas, texas
Posts: 554
Likes: 0
Received 89 Likes on 49 Posts
Default

Originally Posted by Colm
Singing tires are happy tires, so goes the motto at PDE!

You need to get up in the middle of the night when the ambient temp is about 68 degrees, and with a race style (accurate) tire pressure guage, set the tires to exactly 33/39. This is called Porsche passion

Then after the tires come up to temp, measure what it says on the TPMS and keep the readings for future reference...Forget about "micro" adjustments and keep the the TPMS turned off, otherwise it will drive you crazy, because of minute differences side to side, etc. Example, which side of the car faces the sun!

Seriously, keep it at 33/39 and forget about it, then "sing" away!
What you've said above is precisely why I chose not to order TPMS on my Club Coupe

I run 36/39--seems to handle a bit more neutrally for me at those pressures.
Old 08-06-2006, 06:47 PM
  #11  
E55AMG
Rennlist Member
 
E55AMG's Avatar
 
Join Date: Feb 2006
Location: Long Island
Posts: 3,398
Received 679 Likes on 344 Posts
Default

Any suggestions on a good tire gauge? Can a "good one" be digital?
Old 08-06-2006, 07:36 PM
  #12  
irish guitar
Rennlist Member
Thread Starter
 
irish guitar's Avatar
 
Join Date: Jan 2006
Location: New Hampshire
Posts: 1,104
Likes: 0
Received 36 Likes on 14 Posts
Default

Originally Posted by Colm
Singing tires are happy tires, so goes the motto at PDE!

You need to get up in the middle of the night when the ambient temp is about 68 degrees, and with a race style (accurate) tire pressure guage, set the tires to exactly 33/39. This is called Porsche passion

Then after the tires come up to temp, measure what it says on the TPMS and keep the readings for future reference...Forget about "micro" adjustments and keep the the TPMS turned off, otherwise it will drive you crazy, because of minute differences side to side, etc. Example, which side of the car faces the sun!

Seriously, keep it at 33/39 and forget about it, then "sing" away!
Thanks Colm. I'll give it a go. As for getting up in the night to drive, I've been planning on doing that this week to rack-up the miles in my quest for 2000.
Old 08-06-2006, 07:47 PM
  #13  
SrfCity
Burning Brakes
 
SrfCity's Avatar
 
Join Date: Nov 2004
Location: Orange County, CA
Posts: 926
Likes: 0
Received 1 Like on 1 Post
Default

35/40 here. Seems fine.
Old 08-06-2006, 10:11 PM
  #14  
gpjli2
Three Wheelin'
 
gpjli2's Avatar
 
Join Date: Feb 2006
Posts: 1,412
Likes: 0
Received 4 Likes on 4 Posts
Default

Originally Posted by Colm
Singing tires are happy tires, so goes the motto at PDE!

You need to get up in the middle of the night when the ambient temp is about 68 degrees, and with a race style (accurate) tire pressure guage, set the tires to exactly 33/39. This is called Porsche passion

Then after the tires come up to temp, measure what it says on the TPMS and keep the readings for future reference...Forget about "micro" adjustments and keep the the TPMS turned off, otherwise it will drive you crazy, because of minute differences side to side, etc. Example, which side of the car faces the sun!

Seriously, keep it at 33/39 and forget about it, then "sing" away!
Tire pressure reportedly goes up 1 psi for every 10 degrees. Porsche's figures are for 68 degrees. If you do the math you can sleep through the night
Old 08-07-2006, 08:43 PM
  #15  
Edgy01
Poseur
Rennlist Member
 
Edgy01's Avatar
 
Join Date: Nov 2005
Location: Santa Barbara, CA
Posts: 17,699
Received 235 Likes on 128 Posts
Default

I personally love having the near real-time feedback that TPMS provides. It is that extra confidence factor when I start to feel or hear things from the tires. Nope,--that must be the road! I start my days at 33/39 and they wind up around 37/44, roughly


Quick Reply: Correct tyre pressures



All times are GMT -3. The time now is 10:26 PM.