Check my pic... 16 x 7 (3.875 bs) w/ 225/50/16 in front, no rubs anywhere ever... and it's low.
If you go bigger than 225, you start having issues. backspace has to be perfect, or the tire will either rub the top of the wheel well under compression (too little bs) or the back of the tire will hit the subframe when you turn (too much bs)
I did a 245 long ago, had to trim the top of the inner fender, relocate some of the mounting bolts, and roll the whole top of the fedner lip, too. it still rubbed the frame at full lock turn. (that car was really low...)
The pro touring guys get some huge rubber under their cars, but they work real hard at it. stiff suspensions, limited travel, modified wheelwells, custom subframes and a arms and stuff like that.
The rears are 255-45-17 on 17 by 8 w/ 4.5" bs. 265 would fit easy, 275 is getting iffy, although lots do it. Tires I wanted didn't come ina 265.
The rear tires are an inch taller than the fronts, gives a lil more rake.
[ 08-10-2004, 08:55 PM: Message edited by: JimM ]