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Old 01-15-2004, 07:24 PM   #1
SMF
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Default wheel offset nirvana

Hi folks. got my wrx 3 weeks ago, and the first mod planned is wheels and tires (so it's all stock now). I've done a lot of reading about offset, scrub radius, and all that good stuff, and of course I've browsed the forums. There seems to be several opinions about offset changes. Some say don't. Some say +/- 3 mm. The offset nirvana thread appears to allow changes up to 8 mm from stock, depending on wheel width. but that seems mostly focused on fitment.

My concern is handling. I'm looking to go 17x7 or 7.5, with a 225/45 tire, and a 48 offset, and if I've done my math right, that will result in about 16mm of increase in track, and change the scrub radius to a degree also (that I couldn't calculate, and wouldn't understand if I did).

So, here's my question: if I go with et48, am I going to experience any changes in straight line stability, torque steer, bump steer, tramlining, etc.? Or should I sacrifice available variety and go 50 or higher, to minimize handling changes?

thanks in advance
steve
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Old 01-15-2004, 07:25 PM   #2
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Default wheel offset nirvana #2

I forgot to mention, it's a sedan.
Steve
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Old 01-16-2004, 09:27 AM   #3
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You should be fine with a +48mm wheel (ideally on a 17x7.5). I think the biggest issue with tramlining and stability will be based on what tire you use.
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Old 01-16-2004, 12:37 PM   #4
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agreed
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Old 01-16-2004, 06:32 PM   #5
SMF
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Ok, great, so et48 is fine.
and tires will be the concern for handling...

so, any suggestions there what to get, or avoid?
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Old 01-17-2004, 11:21 AM   #6
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all ROTA wheels offering for the SUBARU all have a 48mm offset.

check out the following galleries to get an idea on what will work for you:

http://www.subydude.com/gallery/

http://forums.subydude.com/viewforum.php?f=3

good luck

SD
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Old 01-17-2004, 07:37 PM   #7
SMF
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Yes, I've been to the gallery, and it was helpful in narrowing my wheel choices to SDRs, or Kazera kz-s or kz-u. they all weigh about the same, and while the kazeras are closer to stock offset (at 7 inches), the SDR is 7.5 inches which will hold a 225 tire just that much better. i like prodrive too, but they are out of my budget right now.

thanks
SMF
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