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12-11-2004, 04:30 PM | #1 |
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Tire fitment questions
Hey, I know this doesn't mean that i know anything, but I work at Wal-Mart tire/lube/express. Today while i was looking around the shop in boredom, i found a tire fitment guide for OEM equipment. So naturally, i decided to look up what my car could handle on stock rims. The two largest sizes that i found appealing to me were as follows:
1) The normal sounding one: Tire size 215/50R16.....33 PSI front, 30 PSI rear. 2) The weird one: 225/40R18 (yes 18).....36 PSI front. 33 PSI rear. My questionn is more about the second optional tire size it gave me....Is that even possible on our 16" rims? if so...would it clear the springs? same for the first fitment as well. Thanks for any info you guys can provide me with. ~Levvy (2005 Subaru Impreza 2.5RS)
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12-11-2004, 05:40 PM | #2 |
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That guide is likely refering to is what size of tire you should use if you go up a plus 2 in rim diameter. No way the 225/40/18 will work on your stock rims. Hope that helps
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12-11-2004, 06:51 PM | #3 |
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thats what i figured...yea, it says at the top of the box 'Plus 2" ', so, that's all i wanted to know. but I have another question.
Whats the widest 16" rim and/or tire I can put on the Subaru? I believe it said the stock rim is 16 x 7, correct me if I am wrong. So, what should i do to get more tread surface to constantly be touching the road (i.e., how do i get the widest tire possible, without major work) Thanks again for any help ~Levvy |
12-11-2004, 07:51 PM | #4 |
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Strictly speaking, wider tires have no effect on the size of the contact patch. While you may see a minor increase due to tire construction and materials, in practice it'll be right about the same. The handling improvement from wider tires is due to the reorientation of the patch, not a surface area change.
For the money, you'd be better off spending more for better tires, and keeping your stock size. |
12-11-2004, 09:20 PM | #5 |
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225/50-16 is a very popular size to use on the stock WRX wheels.
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01-03-2005, 03:33 AM | #6 | |
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01-03-2005, 07:43 AM | #7 | |
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You mean to tell me that a Chevette with 155s has that same contact patch as a Corvette running 315s? |
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01-03-2005, 08:55 AM | #8 | |
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01-03-2005, 11:48 AM | #9 |
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That makes more sense, but I still think you will get more contact patch when going to a larger tire, even if it on the same size rim.
Just logic and common sense speaking here - feel free to disprove. |
01-03-2005, 12:26 PM | #10 | |
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01-03-2005, 01:54 PM | #11 |
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so the widest tire to run on the stockers to get full benefit is 215?
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01-03-2005, 04:10 PM | #12 |
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Hey, does anyone know of a US chain where we can purchase the Pirelli PZero Nero M&S tires and have them installed? I don't want to pay for shipping.
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