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Old 10-25-2000, 10:45 AM   #1
Rez
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Member#: 1958
Join Date: Jul 2000
Location: Taxachusetts, USA
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1999 Impreza 2.5 RS
Rally Blue Pearl

Question 17" Prodrive wheels, now what size tires?

Hey all-
I'm going to be putting snow tires on my stock wheels and I'll be picking up a set of OZ Prodrives over the winter. I want to put Potenza 730's on them but what size do I need? The Prodrives are 17x7. Is there some sort of chart I can use? I don't want a reply like "go to TireRack", cause I want an answer for a MY99 2.5 RS, not generic charts for everyone. There has also been a lot of discussion about offsets. What are the STOCK offset for MY99 2.5 RS?

Current:
Stock Rims: 16x7
Stock Tires: 205/55/16

Winter:
Stock Rims: 16x7
Artic Alpine: 205/55/16

Summer:
OZ Prodrive: 17x7
Potenza 730: ???/??/17

Help.

-Rez


P.S. I do not want to change my speedo\odometer readings with the new tires.

[This message has been edited by Rez (edited October 25, 2000).]
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Old 10-25-2000, 11:14 AM   #2
ColinL
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There isn't a 17" tire exactly the same rolling diameter as a 205/55-16, but the two closest are 205/50-17 and 215/45-17 which are .8% larger and 1.0% smaller respectively.

I would get 215/45-17.
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Old 10-25-2000, 05:22 PM   #3
adam99rs
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watch the offset...I ran 215/45/17 on my first set of rims, and had to have the wheels "shaved" to increase offset to 49, and had to roll the rear fender lips easy to do, but time consuming and less than ideal. If your offse is anything down to 45, I would go with 205/45/17, which is what i now use on my newer rims (OZ's). It's the tire size prodrive themsevles use as well on their 'versions".
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Old 10-25-2000, 06:31 PM   #4
paultg
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Post

I have Prodrive 7-Spoke rims by Speedline (Bought from www.spdusa.com). They have a +52 mm offset, and the Stock '99 Rs rims are a +53 mm offset. I have Bridgestone RE-730 tires in 205/50/R17 on them, and just autocrossed with no rubbing this past weekend.
I also have stock struts with Eibach springs, so the car is lowered about 3/4 inch.
I would be careful with the 215 width tires. The OZ rims I think are +48 to +50 offset, and I know a few people that had the 215 tires rub. It is hard because tire sizes varies between manufactures (even if they both say 205/50/17).

If you have any questions, let me know.

I notice we live in the same state. If you want to meet some time and see them, let me know. They will not be on the car too much
longer since it is getting colder out.

Paul G.

[This message has been edited by paultg (edited October 25, 2000).]

[This message has been edited by paultg (edited February 14, 2001).]
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Old 10-25-2000, 06:40 PM   #5
Corey
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I also run 205/45/17's. No rubbing, but I have a 55mm offset so I could probably go wider. There is a point where wider isn't always better.
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Old 10-26-2000, 07:47 AM   #6
Rez
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Rally Blue Pearl

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I believe the OZ Prodrives are +50 offset. Any ideas as to what offset would be minimum to get the 215/45/17 without rubbing? I don't want to have to deal with the hassle of getting different tires if the 215's don't work. I may just go with the 205/50/17's until I lower the car with a different suspension.

Any other help...?

-Rez
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Old 10-26-2000, 10:00 AM   #7
Tifosi
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Which OZ Prodrives wheels are you refering to? P1's.
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Old 10-26-2000, 10:07 AM   #8
silverSurfer
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yes finally! someone with pix of the Prodrive7 in Silver!!! Thank youuuuuu! Everyone I've asked only had pix of the anthracite and gold ones.

Hopefully this'll let me decide which color to get for my silverhorn metallic.

-chrisC
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Old 10-26-2000, 10:28 AM   #9
ColinL
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Rez, if a 215/45-17 rubs on +50mm offset it will be only one place-- a very small portion of the rear fender lip. Roll the fenders.
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Old 10-26-2000, 07:00 PM   #10
paultg
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Your welcome. I originally saw the rims on a silver Subaru RS, and new I wanted them (the rims were silver, and looked great).
Then my friend wrecked his Impreza L with my RS rims on his car, and his insurance company ended up paying for 4 Prodrive rims instead of 3 RS rims.
Long story, but it turned out for the best.

Paul G.
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Old 10-27-2000, 08:18 AM   #11
Rez
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Rally Blue Pearl

Post

Tifosi- The Prodrives I'm talking about are these:
<img src=http://www.ozwheels.com/images/Prodrive_bigpic.jpg>

at this link:
http://www.ozwheels.com/cd5.html

Looking at the numbers, I think I'm going to go with the 205/50/17's. It's a little bigger than the stock wheel (rolling diameter wise) and I think I would rather be a bit over than under.

PaulTG-
Where do you live\work? Maybe we can arrange something. Drop me a PM and let me know what your schedule is like. Thanks.

Thanks all! Any more info would help a bunch.

-Rez


[Edited to get image to work]

[This message has been edited by Rez (edited October 27, 2000).]
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