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18" Tire sizes

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Old 08-23-2017, 05:43 PM
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911 Rod
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Default 18" Tire sizes

Putting on the stock 18" twists and see all kinds of conflicting info here so I thought I would ask (yes I searched)
Stock size is 225/40 and 295/30. My car is lowered quite a bit and my 295/30/19 in the rear did rub until I removed the bracket.
Should I stick with stock sizes or am I better of using other sizes?
Thanks
Rod
Old 08-23-2017, 06:27 PM
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bansasn
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Stick with what the car was design and engineered for.
Old 08-23-2017, 06:33 PM
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T10Chris
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245/40-18 and 315/30-18 on stock wheels... you mention 295/30-19 in the post, but 18 in the thread title... if youre actually looking for 19s instead of 18s I don't really have any recommendations
Old 08-23-2017, 07:58 PM
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Third-Reef
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The Michelin rep at the WERKS reunion in Monterey said " any size that is available in the PS2 will be available in the PSS in January" That is good news for those of us that run stock tire sizes.
Old 08-23-2017, 08:17 PM
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Carlo_Carrera
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I agree. 245/40-18 and 315/30-18 on stock wheels are the way to go.
Old 08-23-2017, 09:23 PM
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s65e90
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235/40 and 315/30. Those are the gt2 sizes, and I have been running the same for years. Otherwise stick with OEM.
Old 08-23-2017, 10:16 PM
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Kevinmacd
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315/30 is a higher sidewall, go with the stock 295/30
Old 08-23-2017, 11:52 PM
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Road King
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Originally Posted by Third-Reef
The Michelin rep at the WERKS reunion in Monterey said " any size that is available in the PS2 will be available in the PSS in January" That is good news for those of us that run stock tire sizes.
wow, that's pretty big news.

I'm already contemplating my next tire...I like the Yok AD08Rs, but they're being discontinued.
Old 08-24-2017, 01:54 AM
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My stock size PS2s did pretty good at Laguna Seca. They ride nice on the highway too. I would recommend them.
Old 08-24-2017, 02:33 AM
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"02996ttx50
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Originally Posted by s65e90
235/40 and 315/30. Those are the gt2 sizes, and I have been running the same for years. Otherwise stick with OEM.
wholeheartedly concur. new 235/40 ps3's going on tomorrow along with some "experimental" fookin falken 315/30/18. when it comes to fitment for this car, oem gt2 spec rules.

op..get rid of the 19's and go with a gt2 oem sized/stanced plant. this requires 18" wheels. better.
Old 08-24-2017, 02:41 AM
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993GT
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good news, Michelin is way behind here...PS2 is a 15y.o. tire/tech
Originally Posted by Third-Reef
The Michelin rep at the WERKS reunion in Monterey said " any size that is available in the PS2 will be available in the PSS in January" That is good news for those of us that run stock tire sizes.
Old 08-24-2017, 03:03 AM
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"02996ttx50
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Originally Posted by 993GT
good news, Michelin is way behind here...PS2 is a 15y.o. tire/tech
rob, don't you think that ps2/3 tire suits the car? the car is 15 years old also!

not for nothing, .. only two reasons i am fitting rt651k's tomorrow is because of your previously favorable mention of them coupled with their cheap price. in equal measure
Old 08-24-2017, 07:04 AM
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255-35-18 & 315-30-18 Toyo R888R installed on HRE 18x8.5 ,18x11.5.
Rear needs fender roll or it hits outer lip.
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Old 08-24-2017, 10:43 AM
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911 Rod
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Different recommendations here just like I found on my search.
My concern with going for the GT2 sizes is the car is lowered substatially and I have had issues with my 19" 997TT rims rubbing on the back before I removed the bracket.
Will the 315 rub?
Old 08-24-2017, 10:53 AM
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Road King
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Originally Posted by 911 Rod
Different recommendations here just like I found on my search.
My concern with going for the GT2 sizes is the car is lowered substatially and I have had issues with my 19" 997TT rims rubbing on the back before I removed the bracket.
Will the 315 rub?
Maybe...

They're not supposed to rub at stock ride height with stock wheel sizes, but all bets are off on a lowered car with different offsets.


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