dssur
+1y
depends on wheel width for offset and depends tire size if you need to change the front suspension.
a basic rule is +33 for a 7 inch wide wheel and add 6mm offset for every 1/2 inch increase in wheel width. So a 7.5 would need +39, an 8 would need +45, and so on and on.
If you use a 215/35/18, you can lay out without changing anything on the front suspension if you set your bag up right in the first place. Anything bigger will need the balljoints moved from the bottom to the top of the arms, drop spindles, and so on and on.
99.999% of the time, guys will ask this question because they found som baller-ass-pimpin rims that are 6 lug and have +12 or +15 offset and want someone to tell them they will fit. Well, they wont. If you were in the other .001% and just gathering info, be aware that outside of custom made billet wheels and a rare few sets of cast rims, there is very very little that is 6 lug and will tuck. Most people redrill to 5 lug front and rear, because there are an assload of 5 lug rims with high offset and even some 5 lug 20x7.5 rims made for fwd cars!
Probably more than you asked for, but I was bored. Sorry for the book.