Welcome to the North American Subaru Impreza Owners Club Tuesday March 19, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Tire & Wheel Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
Go Back   NASIOC > NASIOC Technical > Tire & Wheel

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 12-03-2004, 07:24 PM   #1
NewShockerGuy
Scooby Specialist
 
Member#: 40736
Join Date: Jul 2003
Chapter/Region: MAIC
Location: Pittsburgh, PA / FairFax, VA
Vehicle:
2005 WRX STI
Aspen White

Arrow New tires, which tire pressure to go by, tire or car?

Just got Pzero's and wonder which tire pressure to go by? The one that is listed on tirerack for the Pirelli tires or do I use what the inside of the driver's door states for recommended tire presssure. Any pros or cons to using either or? I just don't want a blown tire and end up getting killed.

Thanks a bunch :-)

-Nigel
* Registered users of the site do not see these ads.
NewShockerGuy is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 12-03-2004, 07:44 PM   #2
Skeete
Scooby Newbie
 
Member#: 52569
Join Date: Jan 2004
Vehicle:
2004 STi

Default

i have mine at ~40psi upfront and ~36psi in the rear and it's riding well for me.
Skeete is offline   Reply With Quote
Old 12-03-2004, 08:14 PM   #3
Got Groceries?
Scooby Specialist
 
Member#: 25323
Join Date: Sep 2002
Chapter/Region: MWSOC
Location: St. Louis, MO
Vehicle:
2003 WRX Wagon
Black

Default

Always check the side of the tire for the max pressure of the tire, and stay under that. I'm running no more than 40 on my stock sized Continentals.
Got Groceries? is offline   Reply With Quote
Old 12-03-2004, 09:58 PM   #4
NewShockerGuy
Scooby Specialist
 
Member#: 40736
Join Date: Jul 2003
Chapter/Region: MAIC
Location: Pittsburgh, PA / FairFax, VA
Vehicle:
2005 WRX STI
Aspen White

Arrow

Quote:
Originally Posted by Skeete
i have mine at ~40psi upfront and ~36psi in the rear and it's riding well for me.

Is there a reason to have more psi in the front than the rear... I always thought they had to be uniform for all four?

I'm gonna check now on the tire and see what max PSI is.

Thanks,
-Nigel
NewShockerGuy is offline   Reply With Quote
Old 12-03-2004, 10:13 PM   #5
RankFrank
Scooby Specialist
 
Member#: 60682
Join Date: Apr 2004
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
2006 WRX
WRB

Default

Quote:
Originally Posted by NewShockerGuy
Is there a reason to have more psi in the front than the rear... I always thought they had to be uniform for all four?

I'm gonna check now on the tire and see what max PSI is.

Thanks,
-Nigel
My understanding is that they should approximate weight balance. My MR2 is 28 in the front and 32 in back. Of course, it's also 2/3rds the weight of your car.
RankFrank is offline   Reply With Quote
Old 12-03-2004, 10:45 PM   #6
Got Groceries?
Scooby Specialist
 
Member#: 25323
Join Date: Sep 2002
Chapter/Region: MWSOC
Location: St. Louis, MO
Vehicle:
2003 WRX Wagon
Black

Default

Weight distribution is the reason, you're right RankFrank. About 4lbs higher in front seems to be the average 'round these parts. Helps kill the understeer, more grip for the fronts.
Got Groceries? is offline   Reply With Quote
Old 12-04-2004, 01:05 PM   #7
Skeete
Scooby Newbie
 
Member#: 52569
Join Date: Jan 2004
Vehicle:
2004 STi

Default

^^^^ what Groceries said
Skeete is offline   Reply With Quote
Old 12-04-2004, 02:33 PM   #8
Charlie-III
NASIOC Supporter
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

1-the pressures listed on your car only work for the OEM tires or a similar one.
2-I use the rule of ~80% of max inflation as listed on the tire for normal use. Thus if it has a max of 51psi, I use ~41psi. This is a good starting point and adjust from there.
I also use a ~4psi spread front to rear for removal of understeer.
Charlie-III is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Which intake to go with for my car? Poll txl146 Newbies & FAQs 7 05-14-2008 06:22 PM
which dealer to go in Sacramento or bayarea? yuen_kevin Dealership Reviews 0 08-24-2006 12:56 PM
Which turbo to go with; SZ55 or Garrett GT35R? Ozer Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 46 10-15-2005 12:21 AM
What pressure to run my tires at??? 2003YlwSubaruWRX Newbies & FAQs 11 02-25-2003 06:04 AM
New tires, need alignment. Where to go? chyisan Texas Impreza Club Forum -- TXIC 10 01-31-2002 12:49 AM

All times are GMT -4. The time now is 03:11 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.