Your options on a 17" wheel will be much better and a 9-9.5" wheel width will hold a tire much more suited to your power.
I've played that game, and I'm considering ditching 17" wheels altogether because I'm going to have to look at tires like the NT01 or R888 to handle the heat I'm putting into them.
-Dan
"Capitalization is the difference between helping your Uncle Jack off a horse, and helping your uncle jack off a horse." "'she' also likes to swap since I think I am going to need to give her to woody again." - Dvlhntr "full alphabetic boost mode" - ChristopherTheOne " Purrs like a sexually satisfied black panther." - BigTDogg "Two oil eating, angry, spinning triangles of death." - turtleboy on rotary engines