it depends on the specific make and model of tire, as tires can vary a lot between makes and models, in width and corner profile, even in the same size.
for example, i have an 18x10 on the rear with a 52mm offset, with a yokohama advan AD-08 285/30. i am running 1.7 degrees negative camber, and am about 1" lowered. i have just over 2mm clearance at the outside. a 295 would rub. a squarer corner tire in the same width i have now would rub.
if i increased camber to 2.2 degrees, and ran a 295, it would probably rub.
keep in mind that i also have 300# wheel rate springs, polybronze torsion tube bushings, spherical bearing control arm bushings, and massive sway bars in there. stock torsion bars, rubber bushings, and either stock or M030 swaybars would make it worse, as it would allow things to move around more.
you can see that there are a lot of factors involved. take your time with this, but ultimately you will likely have to do a test fit.
94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating
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