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-   -   Upsizing rims? (http://www.grandamgt.com/forum/showthread.php?t=86820)

xINVICTUS28x 02-23-2012 10:51 AM

Upsizing rims?
 
I have the stock 16" rims on my grand am. I plan on getting new rims but not sure whether to upsize or not, or how much. I've never upsized on a car before so I'm not rly familiar with it. First off, would it look better? And how big? And would it mess anything up? Cause any problems or would I have to adjust anything? Thanks.

burgett2103 02-23-2012 11:40 AM

There are lots of threads to view about this. But anyway, most of us are going to say do not go larger than 18" on wheel size. If you go up to an 18 your tire size will most likely end up being 225/40/18 or 235/40/18. Speed will slightly be off, but not my too much to really worry about

xINVICTUS28x 02-23-2012 11:55 AM

I wouldn't go larger than 18's anyway lol would 18 or 17 look better? I don't plan on lowering the car or anything like that.

sleepyalero 02-23-2012 01:09 PM

id maybe say 17 if you dont plan on lowering it.

FuriousG 02-23-2012 07:30 PM

Since you have the 16's already, I would recommend the 18's. If you go with 17's it won't be very noticeable of an upgrade and you may as well stick with 16's for ride comfort in that case. 17's are only a noticeable upgrade if you're starting with 15's.

Whatever you do, make sure you buy an equivalent tire size so that you don't throw your speedo off much. I'd also recommend Eibach springs with any size rim/tire choice. It's a subtle drop but still reduces that wheel gap enough to improve the looks of the car without sacrificing the ride quality too much.

xINVICTUS28x 02-23-2012 07:45 PM

speaking of ride comfort, how noticeable of a difference is it going from 16's to 18's?

sleepyalero 02-23-2012 09:34 PM

my 18s are a comfy ride.

xINVICTUS28x 02-24-2012 06:58 AM

Would it be a good idea to get a big brake set or f body brakes? Anyone have any sites I could like at for some?

xINVICTUS28x 02-24-2012 07:07 AM

Would these work ? http://item.mobileweb.ebay.com/viewi...id=83810597729

caraudiodave 02-24-2012 07:36 AM

17s can look significantly better than stock 16 depending on the design. the bigger the wheel the harsher the ride will be due to less tire sidewall.

I recommend bigger brakes no matter what, but you will not need to upgrade. the change is not as big as those jerks that go with 26" rims and keep the stock brakes. the bigger the wheel is the harder it is to stop. going from 16 to 18 is not enough change to cause issues, but with bigger wheels you will have room for f-body or corvette brakes, and I am a huge fan of bigger brakes.

xINVICTUS28x 02-24-2012 10:23 AM

yeah i just looked at the How To thread on here over the corvette brakes. I think I'll end up doing that. Looks pretty sweet.

1HOT SE 03-01-2012 12:52 AM

2 Attachment(s)
Stock 15's on my SE to 18's wasn't a problem, and nothing to adjust (spedo). About 2 kilometers off. Larger rims with low profile tires (225/40/18) are just slightly bigger than the 15's with the stock all season tires on. Pics attached. Note: Started of with SE rims then switched to 15's from my dad's Montana.


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