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06-10-2009, 02:12 PM | #1 |
Scooby Newbie
Member#: 195039
Join Date: Nov 2008
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08 Impreza 2.5i 4dr tire size
So I just got the 07 WRX oem 17x7 wheels and I am awaiting installation, I assume they will fit fine on my 08 2.5i - correct me if I am wrong. But I was wondering what people thought of tire size. Will I be okay with 225/45/17 or do I need to go smaller. Everything is stock except I have pinks (springs), and sway bars (aftermarket). Thanks guys, ps i don't know anything about this stuff. Thank's.
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06-12-2009, 07:50 AM | #2 |
Scooby Specialist
Member#: 22928
Join Date: Aug 2002
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Location: Fitchburg, MA
Vehicle:2015 Legacy Limited Lapis Blue |
You'll be fine with 225s.
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06-12-2009, 11:36 AM | #3 |
Scooby Newbie
Member#: 195039
Join Date: Nov 2008
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Some people say that it will mess up the speedometer, or the suspension is not correct for this size. Any explanation. Thanks
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06-12-2009, 11:48 AM | #4 | |
Scooby Specialist
Member#: 22928
Join Date: Aug 2002
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Vehicle:2015 Legacy Limited Lapis Blue |
Quote:
Ryan |
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06-12-2009, 03:20 PM | #5 |
Scooby Newbie
Member#: 195039
Join Date: Nov 2008
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so does the lower perch refer to the lowering springs the pinks, thank you for all your help.
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06-12-2009, 03:26 PM | #6 |
Scooby Specialist
Member#: 22928
Join Date: Aug 2002
Chapter/Region:
NESIC
Location: Fitchburg, MA
Vehicle:2015 Legacy Limited Lapis Blue |
The perch is the bottom cup of the strut that the springs sit on. Looks like a funnel. When you stick your finger at the inside top of the tire, that's where the perch is.
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06-13-2009, 11:01 AM | #7 |
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Member#: 211632
Join Date: May 2009
Location: Pittsburgh area
Vehicle:2017 Outback Twilight Blue Met |
At an indicated 65 mph on 205/55/16 stock tires, you will be actually driving 65.25 mph on 225/45/17 tires, hardly a difference to be worried about. Is a 7" width wheel specidified for use with a 225 wide tire, make sure of this. I have not checked. Use this link to play around with various scenarios:
http://www.discounttiredirect.com/di...foTireMath.jsp |
06-13-2009, 02:00 PM | #8 |
Scooby Specialist
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Join Date: Apr 2008
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Vehicle:2015 STi White |
Spedo difference is misleading. Tires generally have about 11/32 of treadwear top and bottom. The difference between a worn tire and a new tire can be over a half an inch of overall diameter (~2% different than stock). Obviously there's some margin there anyway so don't sweat it. Within 2% is fine.
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