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Old 03-14-2006, 10:34 PM   #1
traffic142
 
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Default Using new 18" rims on my lowered mustang

Any problems with that?

Mustang Tuning has the deep dish chrome on sale this month.

I want to go with 18 x 9 in the front with 255-40-18

And 18 x 10 in the rear with 275-40-18

Was worried about rubbing?

Thanks

Any suggestions on changing the tire sizes?
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Old 03-14-2006, 11:01 PM   #2
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Default RE: Using new 18" rims on my lowered mustang

You should be fine a lot of others are running the same size.
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Old 03-14-2006, 11:40 PM   #3
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Default RE: Using new 18" rims on my lowered mustang

What about the same wheels and a 305/315 tire in the rear.
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Old 03-15-2006, 12:55 AM   #4
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Default RE: Using new 18" rims on my lowered mustang

someone on here has 315's and they stick out past the fenders. While it looks good with a nice fat back tire I think 295's are as wide as you can go and keep it in the fenders.
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Old 03-15-2006, 10:36 AM   #5
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Default RE: Using new 18" rims on my lowered mustang

I have the 295's in the back, and they line up perfectly with the body line. If I can figure out my wife's digital camera, I'll take a picture along the body line and show you.
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Old 03-15-2006, 11:19 AM   #6
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Default RE: Using new 18" rims on my lowered mustang

I wish you would. I have decided on 18 x 9 deep dish with 255-35-18 Nitto in the front and 18 x 10 deep dish 285-35-18 Nitto in the rear.

I would like to have gone to 40's in the front and rear, but I cannot find a tire maker that has the 40's for both the front and the rear.

I was also concerned with my steeda springs causing a problem. JJ Stang, You said your rears are 295's, did you lower your car?
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Old 03-15-2006, 04:34 PM   #7
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Default RE: Using new 18" rims on my lowered mustang

Im going smaller in the front, don't know if 315s will look goofy...
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Old 03-15-2006, 04:45 PM   #8
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Default RE: Using new 18" rims on my lowered mustang

Those tire will look very lowrider in my opinion.
The rears (295/35/18)will be 1.05 inches shorter than stock and the fronts (255/35/18_will be 2.15 inches shorter than stock.
That will affect speedometer, final drive gear ratio and top speed. It will also look out of proportion with the front tire having such a short profile.
Did you research the tire height before choosing this size tire?
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Old 03-15-2006, 05:06 PM   #9
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Default RE: Using new 18" rims on my lowered mustang

Ah! Research. Could you define that for me kopfjager, `cause I don't want to look it up. [sm=icon_rofl.gif]

Sorry, I couldn't help myself...

Ok, I could, but I'm having too much fun with the smileys today.

Seriously though, the Michelin Pilot Sport PS2's come in 255/40 and 275/40 sizes. That's what you had in mind, no. But the 255/40s are going to be 1 1/4" shorter than stock 235/50s...so you have a significant speedo error (5%), and possibly (I hear) problems with your antilock brakes acting up. Scratch that--the difference between the stock and 255/40s might cause a problem, but the difference between 255/40s and 275/40s is about 1/2" in height, so that may not be enough to freak out the antilock processor.
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Old 03-15-2006, 05:24 PM   #10
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Default RE: Using new 18" rims on my lowered mustang

Actually, you guys seem to be comparing apples to oranges. If the stockers are 235/55 17's as they were on mine. You can go to a 255/45 18 as I did and all your speedo etc. will be the same as the actual circumference of the tire will stay the same. Just go to tirerack.com and look at revolutions per mile for your tire sizes in question and make sure they are similar or you will have those issues. And of course a programmer will solve the speedo issue if you decide on a different circumference. Dunno about the antilocks though.

As far as the rubbing goes, I haven't had a rub yet, but then again, 255's are a mile away from 315's, so you're on your own there.

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Old 03-15-2006, 05:24 PM
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