Welcome to the North American Subaru Impreza Owners Club Friday November 27, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Brakes, Steering & Suspension

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.
* Registered users of the site do not see these ads. 
Closed Thread
Thread Tools Display Modes
Old 11-15-2001, 02:37 AM   #1
Scooby Specialist
Member#: 7768
Join Date: Jun 2001
Location: bay area, C A L I
Default 18" rim owners look here!!

whats the correct tire pressure for 18" 215/40/18? anyone help me out please?
* Registered users of the site do not see these ads.
girl is offline  
Sponsored Links
* Registered users of the site do not see these ads.
Old 11-15-2001, 03:18 AM   #2
Friendly Neighbourhood
Member#: 269
Join Date: Sep 1999
Chapter/Region: VIC
Location: Burnaby, B.C., Canada
00 Impreza RS GM6 RIP

Default The correct tire pressure...

is located in your owners manual as well as your door jamb.

Click here for more info. Even though its for 17" wheels, it'll still work for 18" wheels.

Penphoe is offline  
Old 11-15-2001, 03:26 AM   #3
Scooby Specialist
Member#: 1911
Join Date: Jul 2000
Location: Seattle, WA, USA
2000 Impreza 2.5RS
Silverthorn Metallic


The owner's manual isn't much help for aftermarket wheels. Did you read the manufacturer's recommendations or even the side of the tire?

bsquare is offline  
Old 11-15-2001, 03:28 AM   #4
Eric SS
Sooby Guru
Member#: 1914
Join Date: Jul 2000
Chapter/Region: SWIC
Location: 2013 335i, 2014 Q60S
2000 2.5RS w/ EJ22T
swap and N20. gone. : (


What do you want ot do with the car? on the street I usually run about 34-35psi hot and when autocrossing I run about 40-43psi hot
All tires are about the same though. Within reason, the higher the pressure, the better the gas milage but the worse the ride comfort. The lower the pressure (again, within reason) the better ride comfort but the worse the gas milage

Eric SS is offline  
Old 11-15-2001, 03:55 AM   #5
Friendly Neighbourhood
Member#: 269
Join Date: Sep 1999
Chapter/Region: VIC
Location: Burnaby, B.C., Canada
00 Impreza RS GM6 RIP


If you're unsure of what tire pressure to run, as long as the vehicle manufacture's recommended pressure (i.e. the ones stated on the door jamb and owners manual) fall within the allowable tolerances of a particular tire, I'd start with that. From then on, you can bump it up or down depending on your preference.

There have been alot of newbies asking basically the same question, hence they get basically the same answer from me.

Penphoe is offline  
Old 11-15-2001, 11:41 AM   #6
Scooby Newbie
Member#: 5987
Join Date: Apr 2001
Chapter/Region: SCIC
Location: Irvine,CA
2002 WRX
Platinum Silver Metallic


I usually run mine 35-40 psi.
flipguy80 is offline  
Old 11-15-2001, 11:45 AM   #7
Scooby Specialist
Member#: 1575
Join Date: Jun 2000
Chapter/Region: South East
Location: Atlanta GA, USA
2011 WRX Premium
Blackest Black

Default Tire pressure trick!

We used to do this in the 4x4 world where premature or uneven tire wear was a real pain and happened all the time.

1) find a empty cul-de-sac or dead end road

2) draw a chalk line across the tread of each tire

3) drive down the road for a few hundred feet then stop

4a) if the chalk wore off in the middle first add air pressure
4b) if the chalk wore off on the outside and inside edges reduce pressure

5) repeat until chalk wears off evenly for all 4 wheels

BINGO that is your ideal pressure. Typically it will be higher in the front than the rear and for some cars it is different for each wheel. Remember this is the best pressure for even tire wear. For track/autocross adjustments are better made for traction reasons.
skidplatez is offline  
Closed Thread

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
DRebel/10/20D Owners Look Here teknisa Mid West Subaru Owners Club Forum -- MWSOC 16 11-18-2004 01:46 PM
Borla Hush + Wagon Owners look here! KmanRuffian Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 51 11-16-2004 07:26 PM
DBA 4000 Problem/Defects, Owners look here KanosWRX Brakes, Steering & Suspension 8 06-16-2004 06:12 PM
Jersey WRX owners look here for a min. please. 03WRX83 Tri-State Area Forum 5 07-03-2003 10:50 AM
Texas owners look here... montgog General Forum Archive 5 09-08-2000 04:29 PM

All times are GMT -4. The time now is 03:49 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.