Playboy06

Alright I have 2006 V6 Vista Blue Mustang and i'm going to get larger rims. I initally (I have the ponypackage) had 17inch rims, and I want to go bigger. I'm looking at 18" FR500 rims to put on my mustang.

My questions;

They have a variety of rims for them; 18x9, 18x9.5, 18x10, etc and I have no idea what "x9, x9.5, and x10 mean and what would be best for me. I'm assuming it has to do with the width of the rim for the tire. What is best all round?

Also would it be a straight swap? I mean the rims are made for the 2006+ Mustang which all it says, I don't know what offset I need (Once again i'm not sure what the 'offset' means).

Would I be loosing any power because of the larger rotation that would be required?

Thanks,
Any and all help would be greatful
-Josh

28HopUp

You are correct, the "x9" refers to rim width. So a 18x9" is larger than the 17x8" Bullitts your PP came with from the factory. The offset refers to the distance between the inside lip of the rim to the center section where the rim bolts to the hub. As long as the wheels are identified as for 2005+ S197 Mustangs, you will be fine.

You won't want to go larger than 18x9" rims on the front, IMO. If you go larger, you could have rubbing issues depending on the tire size you select.

Larger rims & tires typically are heavier than 17's, but not always.You shouldn't notice too much of a difference going from 17's to 18's. Check tire diameter to see if you are going smaller or larger than the stock 27" diameter.

Pantera72

Agreed, as long as you go with a reputable dealer like our sponsor www.americanmuscle.com or tirerack. Don't trust those guys on Ebay to know what fits your car, because i've seen quite a few threads where the ebay dealers have sold rims that were designed for the pre-05 stangs, and therefore had the wrong offset to fit the s197 properly.

Playboy06

Ok wonderful, thanks guys.

I'm buying 18x9 for the front tires and 18x10 for the rears for a staggered look.

These have been the choice:

oshkoshbajawsh

good choice

banka87

Sick rims!

Hows the price?

awsomeaussies206

I have a question about tire size... I notice alot of people(at least I think so) that get taller tires to feel out the fender wells better. But wouldn't that affect your speedometer and mileage? So would it be best to go with the same tire height?

rmays06

yes it would be BEST but it will only throw it off a MPH or 2... the stock tire rim combo that the factory sets out on the S197 are about 28 inches (17 are 28 1/4 and 18 are 28 1/2) or there abouts. I hope this is what you were looking for.

28HopUp

Ron, actually I believe the stock tire diameters are 27", not 28". You are right though, the overall diameter for 17's versus 18's is about the same. For any n000bs, that cuz the stock 18's have a shorter aspect ratio (thus a shorter sidewall).

To Aussie, if you have a hand-held tuner, you can adjust the tire revs per mile to adjust for different diameter tires. Using my SCT, I change mine all the time when I swap my stock 17's (27" dia = 770 revs) for my drag radials (28"dia = 745 revs).

rmays06

Sorry man it was late and I was close....lol I think its 27 1/4" but I knew where I was going...lol