Welcome to the North American Subaru Impreza Owners Club Monday January 22, 2018
Home Forums 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.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 10-19-2007, 09:04 AM   #1
Silver '02 REX
Scooby Specialist
Member#: 27963
Join Date: Oct 2002
Chapter/Region: Tri-State
Location: New Fairfield, CT
2014 ATS

Default Tire size when using JDM trans on GC8?

I know the USDM GCs need a 215/45-17 tire as a plus one on RSs. JDM cars however ran a 205/50-16 stock which would be approximately a 215/40-17. If I am using an out of the bow complete JDM WRX transmission/ECU in my swap, do I need to run the JDM tire size or the USDM one? I am still using the USDM gauge cluster BTW.
* Registered users of the site do not see these ads.
Silver '02 REX is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-19-2007, 11:55 AM   #2
Uncle Scotty
*** Banned ***
Member#: 16200
Join Date: Mar 2002
OK buy Nates beans


use whatever size ya want
Uncle Scotty is offline   Reply With Quote
Old 10-19-2007, 12:26 PM   #3
Patrick Olsen
NASIOC Supporter
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
1997 Legacy 2.5GT
1996 Impreza coupe


The speedo gear is in the tranny, so my guess is that you'd want to use the JDM sizing. That assumes, of course, that the JDM speedo gear is different than the USDM speedo gear to account for the ~3% difference in tire size.
Patrick Olsen is offline   Reply With Quote

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
Need help figgureing tire size and looking for advice on snow tires. DoctorNick Tire & Wheel 9 12-08-2015 06:32 PM
Caution when using stock hoses on GMS Radiator jikhead Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 5 06-02-2009 11:10 PM
Who's using DMS 40 on GC8? mooshoo Brakes, Steering & Suspension 4 05-23-2003 09:13 PM
F/S Localy used JDM parts for GC8 gc8white Southern California Impreza Club Forum -- SCIC 2 06-01-2002 03:16 AM
('93-'01) Does anyone notice that when using synthetic oil on a RS Jimmy Impreza Forum 16 05-15-2001 09:56 PM

All times are GMT -4. The time now is 10:56 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.