Welcome to the North American Subaru Impreza Owners Club Saturday March 30, 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 01-28-2004, 05:28 PM   #1
Baab's Rex
Scooby Newbie
 
Member#: 45899
Join Date: Oct 2003
Location: Columbus, OH
Vehicle:
2004 wrx wagon
silver

Default Superleggera 17X7 5X100 45mm offset

Will these fit a MY04 WRX wagon or is the offset incorrect? Thanks!
* Registered users of the site do not see these ads.
Baab's Rex is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 01-28-2004, 07:38 PM   #2
Peaty
Techno Sapien
Moderator
 
Member#: 449
Join Date: Oct 1999
Chapter/Region: MWSOC
Location: Lawrence, KS
Vehicle:
2019 Impreza Sport
Lithium Red

Default

Do they come in 45? I just got a set and they are 48. This is a pic of my OZ superlegs. Also I thought the WRX was +53?


Last edited by Peaty; 01-29-2004 at 09:18 AM.
Peaty is offline   Reply With Quote
Old 01-29-2004, 09:04 AM   #3
Luke@tirerack
Tire Rack Moderator
 
Member#: 1215
Join Date: Apr 2000
Location: The Tire Rack
Vehicle:
800 -428-8355
ext. 4362

Default

that offset is wrong .... get the 48mm version
Luke@tirerack is offline   Reply With Quote
Old 01-29-2004, 11:09 PM   #4
WRXURV8
Scooby Specialist
 
Member#: 14848
Join Date: Jan 2002
Location: Philadelphia
Vehicle:
2007 Tribeca
TS w/ 20" OZ's

Default

I have the OZ SLs that I bought from the Tire Rack and I am still convinced that I should of gotten Prodrives. The OZs are the incorrect Subaru offset. The proper offset is a 53mm. The 48mm will fit....but it isn't ideal.
WRXURV8 is offline   Reply With Quote
Old 01-29-2004, 11:24 PM   #5
Peaty
Techno Sapien
Moderator
 
Member#: 449
Join Date: Oct 1999
Chapter/Region: MWSOC
Location: Lawrence, KS
Vehicle:
2019 Impreza Sport
Lithium Red

Default

That depends, it's the proper offset for a Subaru Forester or Outback (Legacy based one) But you are right won't a 48 on something that is supposed to take a 53 put the tire closer to the strut?
Peaty is offline   Reply With Quote
Old 01-29-2004, 11:31 PM   #6
SMF
Scooby Newbie
 
Member#: 52732
Join Date: Jan 2004
Chapter/Region: South East
Location: omnipresent
Vehicle:
2004 WRB WRX Sedan
blue car fun!

Default

no, lower offset=farther to the outside, not inside
SMF is offline   Reply With Quote
Old 01-30-2004, 12:19 AM   #7
Z1 Performance
Former Vendor
 
Member#: 9327
Join Date: Aug 2001
Location: Z1Auto.com
Default

The correct offset varies according to wheel design and wheel width...a +48 on a WRX is perfectly fine and will not cause any ill effects at all. We have many customers running +45 and some a bit lower (on 8.5 inch widths) that do tons of track days and street usage, and have had zero wheel bearing issues. It's all about how the load is transfered across the wheel.
Z1 Performance is offline   Reply With Quote
Old 01-30-2004, 09:37 AM   #8
BriDrive
Scooby Specialist
 
Member#: 21801
Join Date: Jul 2002
Chapter/Region: South East
Location: 90 Degrees North
Vehicle:
2013 Jacked Up T4R

Default

Z1 Performance,
Give up....I've been trying to explain that for a long time, BUT folks don't believe it : http://forums.nasioc.com/forums/show...hreadid=385857

Also, I believe the correct stock offset, ie, on 2002 WRX sedan with 6.5" wide wheel is actually 55mm, not the 53mm everyone keeps referring to....

I run 48mm 7x17 OZ's and 50mm 7x17 Team Dynamics.....
BriDrive is offline   Reply With Quote
Old 01-30-2004, 09:46 AM   #9
Peaty
Techno Sapien
Moderator
 
Member#: 449
Join Date: Oct 1999
Chapter/Region: MWSOC
Location: Lawrence, KS
Vehicle:
2019 Impreza Sport
Lithium Red

Default

Sorry, I always get that backwards

The Service Manual seems to indicate the Offset stays the same regardless of the wheel:



I was going by what EHobron said here:

Which was:

Quote:

The simple answer is that the offset should never change despite wheel width. Even a 10" wide wheel will have a +48 offset on your vehicle. It would never fit the car but suspension geometry would be correct if you could bolt it on. I'll explain geometry in a minute. That's where it gets a little more complicated.

Offset is relative to backspacing and wheel width. That's why it's so confusing.

For example, with both wheels having +48mm offsets, the back spacing on a 6.5" wheel is about 5 5/8" while the back spacing on a 7" rim is about 5 7/8". Additionally, a 7.0" wheel with a +42mm offset would have backspacing of about 5 5/8". Note the similarities and remember this for the last paragraph.

Offset is the distance between the centerline of the wheel and the mounting surface of the wheel. Positive offset occurs when the mounting surface is outward of the centerline of the wheel.

Suspension geometry in basic terms is determined by drawing a straight line from the center of the upper ball joint, through the center of the lower ball joint and down to the center of the contact patch of the tire. Since that line is rarely perfectly plumb, the wheel is OFFSET to make the contact patch of the tire sit in the correct position. The offset is determined by some crazy smart engineer with way too much education.

Since offset is calculated using the centerline of the rim, offset will remain the same regardless of wheel width.

One of the reasons problems occur when choosing wheels that are too wide is that backspacing is changing. In the case of high positive offset wheels as are used on most sport compacts, the backspacing increase is noticed more at the inward portion of the wheel. This is evidenced by rubbing on inner fender skirts, the sub-frame, or even on suspension parts in high negative camber applications.

Take some measurments. As long a you have at least 1/4" clearance from the innermost edge of your wheel/tire, you can choose a 7.0" wheel with a +48 offset. The 1/2" added wheel width will be divided equally to the inner and outer edges of the wheel. 1/4" on each side when compared to the stock wheel.

On the other hand, changing to a +42 offset would move the wheel outward 1/4" so the entire 1/2" width change would be noticed only on the outermost edge of the wheel. The result would probably be no clearance issues inside but parts wear "might" be increased.

Bottomline, I recommend you stay with +48mm offset on the 7.0" wheel.

I hope this helps reduce some of the confusion.

Good luck,
Eric

Last edited by Peaty; 01-30-2004 at 10:03 AM.
Peaty is offline   Reply With Quote
Old 01-30-2004, 10:54 AM   #10
Z1 Performance
Former Vendor
 
Member#: 9327
Join Date: Aug 2001
Location: Z1Auto.com
Default

Bri - I know man.......people love to argue, but rarely want to actually learnt he correct answers!
Z1 Performance is offline   Reply With Quote
Old 01-30-2004, 11:57 AM   #11
Peaty
Techno Sapien
Moderator
 
Member#: 449
Join Date: Oct 1999
Chapter/Region: MWSOC
Location: Lawrence, KS
Vehicle:
2019 Impreza Sport
Lithium Red

Default

Myself I'm trying to understand how this works, I keep getting conflicting answers though. I understand when this is said:

Quote:
The correct offset varies according to wheel design and wheel width...a +48 on a WRX is perfectly fine and will not cause any ill effects at all.
But if that's the case why would the Service manual have the same offset for 3 wheel sizes?

I'm not trying to argue just understand. I read through the offset thread that's a sticky and it seemed to contain a lot of conflicting info.
Peaty is offline   Reply With Quote
Old 01-30-2004, 12:24 PM   #12
Z1 Performance
Former Vendor
 
Member#: 9327
Join Date: Aug 2001
Location: Z1Auto.com
Default

becuase as I said, it varies by wheel design and size....in that small of a width (6-7 inch) you have alot more range you can work with.....as you go wider, the specific offset range tends to get narrower and narrower
Z1 Performance is offline   Reply With Quote
Old 01-30-2004, 11:59 PM   #13
jjimpreza
Scooby Newbie
 
Member#: 1269
Join Date: Apr 2000
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2000 RS to WRX
to Forester to LGT to GF8

Default

I run the OZ SLs in the 48 offset too on my 03 WRX and have had no problems. In fact I contacted OZ and they said this rim in that offset was made specific for the Impreza's. It's been a year and no problems, DON'T believe the offset myth about these rims! Actually do and then less people will have them.

You'll be just fine. With the wagon I think though if you go with a 225/45 they will rub unless you roll the fenders, at least that's what I have heard.
jjimpreza is offline   Reply With Quote
Old 02-19-2004, 01:32 AM   #14
SilverJA
Scooby Newbie
 
Member#: 11544
Join Date: Oct 2001
Chapter/Region: RMIC
Location: West Haven, UT
Vehicle:
93, 05, 16 Taco TRD
01 RS 02 WRX 06 XT 08 STi

Default

So would getting 225/45 be more ideal than 215/45 on the OZ SLs in a 02 Sedan?
SilverJA is offline   Reply With Quote
Old 02-19-2004, 11:35 AM   #15
Z1 Performance
Former Vendor
 
Member#: 9327
Join Date: Aug 2001
Location: Z1Auto.com
Default

you can use either the 225 or the 215 on a sedan...both work great.
Z1 Performance is offline   Reply With Quote
Old 02-19-2004, 12:16 PM   #16
SilverJA
Scooby Newbie
 
Member#: 11544
Join Date: Oct 2001
Chapter/Region: RMIC
Location: West Haven, UT
Vehicle:
93, 05, 16 Taco TRD
01 RS 02 WRX 06 XT 08 STi

Default

^ Thanks. I'm leaning towards 225's as I think they probably look better and probably grip more too.
SilverJA is offline   Reply With Quote
Old 02-19-2004, 01:28 PM   #17
Z1 Performance
Former Vendor
 
Member#: 9327
Join Date: Aug 2001
Location: Z1Auto.com
Default

np - let us know if you need a quote on these!
Z1 Performance 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
FS: Silver OZ Superleggera 17X7 5X100 Wycked VIC Private Classifieds 5 12-06-2009 03:16 AM
WTB: 1 or 2 O.Z. Superleggera 17x7 5x100 Rabid_Machina Private 'Wanted' Classifieds 10 08-24-2008 04:18 PM
Oz Racing SuperLeggera 17x7, 5x100 Black $600 stoney98 Wheels/Tires 18 03-03-2008 04:13 PM
FS: Weds Sport SA-90s 17x7.5 +45mm offset Cation Wheels/Tires 28 06-23-2007 03:05 PM
KMC SR6 Wheels 18x7.5 5x100 +45mm offset $400 w/ tires gimmewar Private 'For Sale' Classifieds 9 01-11-2006 10:44 PM

All times are GMT -4. The time now is 01:22 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.