Avalanch3

What would happen if you get newer tires that reduce the overall diameter (getting lower profile)? Would that cause any problems?

157dB

I went from a 215/65 series 16" to a 235/55 series 17" to a 255/45 series 18".
I am selling the 16s and 17s.
More tread to the ground width wise and the same rolling diameter but with
less sidewall height for better feel of the road.
Yes, more rolling and sprung weight but the better handling
is an excellent trade-off. I dont notice any difference in take-off\
and such. My 1/4 times have improved from the increased traction during launch.
Its 275/40-18s next time and still keeping the OEM rolling diameter but
60mm wider than the 16s and 40mm wider than the 17s.

07 Stang

Since I ordered the Pony Package, mine came with 17" rims. As far as gas mileage, I just checked two days ago when I filled up and got 22.5 mpg in the city.

I think the posters above are correct in saying anything bigger you need more hp to compensate for the added weight.

SatinSilverStang

i went from stock 16's to my DD 18's with very little ride comfort decrease. My MPG has stayed the same. and the new look is undeniably better. new setup is 18x9 front with a 255/40R18 and rear is a 18x10 285/40R18. I used BFG 's KDW2.

http://speedjunkies.org/garage/uploa...8394_thumb.jpg
http://speedjunkies.org/garage/uploa...8685_thumb.jpg

Sancho805

illin, maybe the fan blades are heavier than your 18 bullitts?

anyone seen the 17" mach1 deep dishers? these are interesting.

Mercury83

look, all i know is i felt it myself. i'm not taking someone's word for it or making it up. i essentially drove two mustangs equally equipped....one with the fanblades and one with the seventeen inch stock bullits, and i'm telling you there IS a difference. someone called it a difference in rotational mass or something to that effect...

ODDYSEY

This is somewhat true.. but think about this.

Typically mass & weight are simliar... but if you have a larger rim (18") that weighs less than a smaller rim (16") then rotational mass does not mean much. Weight has a far worse affect on accelaration than rotational mass does.

Now before the flames... typicall larger rims weigh more so this would not be a true statement, but if you have a lighter larger rim, you have more rotational mass, but less weight therefore you have quicker accerlation.

There is oddy's words of wisdom for today...

Sancho805

are aluminum bullitts available for our stangs? American Racing makes alum wheels for other makes.

sonicmetalicS197

Perf wise i say go 16 but it wont look very good. 17 is the best of both worlds, my next wheels will be 17's

Albion47

As most have said it is not the wheel but the tire. It doesn't matter what wheel size you choose, if the tire is the same OD as stock there should be no noticable change at all.