Tires

[scupking]

I'm going to lower the stang soon, H&R springs and Blistens. The thing is with 17inch tires I think it might be to low and bottom out. Would I be better off going with 18s? I assume 18s will give me a little over a half inch more clearance then
17s?

 

[XxMustang281xX]

no, with 18's your tires are just way lower profile and are pretty close to the same. someone correct me if im wrong please

 

[scupking]

Lets compare

Sumitomo High Performance HTR Z IIs
275/40-17
275/40-18
265/35/18

Stock 245/45/17

So to me the 18s would keep the car higher off the ground but by how much?

 

[Flghtmstr1]

Correct me if I'm wrong, but isn't the first number the width in mm, the second number the sidewall height as a percentage of width, and the third number the wheel diameter? If so, the 275/40-18 would be 26.7 inches in diameter, giving exactly 1/2 inch more ground clearance than the 275/40-17 (25.7 inches in diameter), and the 265/35-18 would be 25.3 inches in diameter, making them actually slightly smaller than the 17's.

 

[Y2kSlvrVert]

Check out this size calculator...bad graphic good for dimensions.

http://www.kouki.co.uk/Utilities/tyresizer.asp