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Old 12-13-2004, 02:29 AM   #1
Back Road Runner
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2004 Forester STI
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Default Looking for 16" rims to replace stock 15", what Subaru rims fit? Offset ? too

As the title says, I'm looking into replacing my 15" rims with 16" rims. However, I'm still looking at "stock" Subaru rims from other Foresters, Imprezas, other models and from various years. I'm wondering how interchangable all these wheels are with my '02 Forester L.

My current plan is to start checking out some junk yards to see what I can find cheap, hope I get lucky.

So, what other Subaru models/years use the correct offset and any other clearance aspects required to work. I'm not really concerned about clearance as there's no brake clearance issues with stock brakes and coming form a smaller 15" rim. Still, the offset is of a concern.


Now another related issue I'm curious about is the whole offset thing too. I think mine are 48 offset. What would be any benifits of changing the offset to something else, short of inducing a possible wear issue. I ask this because I think of offset as scrub. More scrub adds road feel by creating rotating torque at the wheels through the steering(how I think of scrub as). Correct me if I'm wrong here. Now the stock steering could use some improvement. On is road feel. I'm curious if I could achieve this through an offset i.e. scrub change. Again, correct me if I'm wrong about the correlation between offset and scrub if I'm incorrect. With this in mind, how much scrub could I add? What are acceptable ranges?
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Old 12-13-2004, 01:32 PM   #2
outback_97
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and 2003 TS wagon

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http://wac.addr.com/auto/obs/wheels.html

This chart might help you out a bit. You do need to consider offset, and it's harder to find Forester specific offset Subie wheels since most readily available Subie wheels are more like 53-55 mm.

No idea what you're talking about w/r/t offset and "scrub", sorry. There's a wheel FAQ that might help explain some things too, check that out.

Steve
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Old 12-14-2004, 02:10 AM   #3
Back Road Runner
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I've actually come across that page before...don't remember why. I think was in search of my stock offset. I actually came across a place who seemed to mention what offsets to use in various sizes, a wheel company no less. I'd really have to recheck the offset thing. I'm not really sure what it is on my Forester.

As far as the scrub thing, I'm not sure how many people know about that. I may have to do some internet searching to get my answer.
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Old 12-14-2004, 07:02 PM   #4
Dark Baal
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Offset affects track width & pressure on your wheel bearings. Toe (in or out) & camber affect tire scrub.

Basically, the largest impact of playing with your offset is to your wheel bearings. Second would be rubbing issues, dealing with either your struts or fenders.
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Old 12-15-2004, 03:36 PM   #5
lakepop
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Replaced the 15" steelies on my 01 Forester L with 16" WRX/215/60/16. While the offset is slightly different 53mm vs 48 it does not cause any problems. If you mess with the tire sizes you could create a rubbing problem.

Hope this helps........
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Old 12-15-2004, 03:52 PM   #6
Swano
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Blue Ridge

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When you change the offset, the "scrub radius" changes.

It has nothing to do with camber and toe!

Phil =)
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