i'm looking at a set or rims and wanted to know what offset will fit?
the tires are 225/40/18 and 265/40/18
the rims are coming off of a supra TT,

 

I'll tell you what I have...

18x9 and 18x10 with 50mm offset...pretty sure I can run 255 up front and 285's out back with little trouble., eventhough I am currently running 235x40 and 265x35. I also have 2.5 inch coilovers and m2 control arms and toe links...

225's are really not wide enough of a tire for 9 inch rims..you are going to have major lippage sticking out...I know because I have 235's on 9's and the lips stick out...same goes with the 265's on 10's...Ok back to the offset..not 100% sure but the front is more critical..you are going to need something in the mid 40's...225's are narrow, which helps but like I said eventually you are going to want 245x35 for a perfect fit...there rear in the 40's would ne nice also...

If you can tell us the exact numbers...maybe Manny will calc them for you

 

Sounds like good advice, Johnny! 45 to 51 mm range would be good up front. 42 to 48 mm out back would work...

ML
MDC
www.autosportoutfitters.com/mdc/