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Max wheel and tire sizes on stock suspension/alignment/ride height

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Old 06-13-2018, 12:33 PM
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jds108
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Default Max wheel and tire sizes on stock suspension/alignment/ride height

Just picked up this beauty recently. Stock car for the most part, except for a long list of engine work done at Protomotive. Got the chance to meet Protomotive's owner, Todd, as I drove the car home. Super knowledgeable guy who doesn't do the self-promotion angle, thus there isn't much heard about his work on the forums, but from my limited time with the car, he gets nothing but positive feedback from me.

So my question - I'd like to get max grip from my tires while keeping stock suspension, street alignment, ride height, and brakes in place. So I'm looking at this:
Front: 19x9 with 255/35/19 (26.0 diameter)
Rear: 19x12 with 325/30/19 (26.7 diameter)

As best as I can tell from searching forums, the rears should be OK. I'm not sure about the fronts though. If that tire is too big, how will that problem manifest itself? If it's just rubbing the liner when the wheel is fully turned, I can live with that, I'll just avoid turning the steering wheel to lock. Or will the tire hit the fender when the suspension is compressed?

What are the best offsets for this combo?

Old 06-17-2018, 10:18 AM
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etchhead
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I went with the GT2RS size and all fits and looks great. 245/35/19 & 325/30/29. Can’t go wrong with that-
great looking car, a bit of go fast bits under the hood?
Old 06-17-2018, 10:47 AM
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loonwin
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OP - sorry I have no advice to give, but if/when you do decide to upgrade your wheels, I’d love to buy your black Turbo wheels off ya
Old 06-18-2018, 03:06 PM
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Dguth
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I'm running the Techart GTS wheels (20 inch wheels). Tires on front are 245/30/20 and tires on back are 325/25/20. They are stretched and aligned perfectly in my opinion.
Old 06-19-2018, 01:45 PM
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jds108
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Originally Posted by etchhead
I went with the GT2RS size and all fits and looks great. 245/35/19 & 325/30/29. Can’t go wrong with that-
great looking car, a bit of go fast bits under the hood?
Yes, the engine has been bored/sleeved to 3.9 l plus a whole bunch of other stuff. 600 hp on 93 and 800 on E85. Too bad there is no E85 anywhere in my state! My prior car was a lightly modded '99 Viper ACR. This car is noticably faster, even on premium.

Originally Posted by loonwin
OP - sorry I have no advice to give, but if/when you do decide to upgrade your wheels, I’d love to buy your black Turbo wheels off ya
I'll keep that in mind, haven't yet decided if I should keep them for winter tires.



Anybody running 255s on the front? I didn't find much via the search function, as most everybody who's modding wheels also seems to be modding suspension parts and alignment. Not quite ready to go that far yet....
Old 06-19-2018, 05:57 PM
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cyclrder
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GT2RS sizes
Old 06-19-2018, 08:42 PM
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bogey1
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Front tire will be a problem. Rear will be fine.



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