EricBell

when trying to respond it's denied so here's the
response.

Running wheels that are the stock size. Offset; ehhh, pretty sure it's damn
near stock. Bit of a search
and I'll get back to you on that. They're Kosei K1 Racing wheels in case you wanted to know.
I run in B-Stock, it's a 225 TT, not a 180. Having driven both I'm pretty sure the 180 would do well in B-Stock but the SCCA doesn't agree. **shrug**
As for rubbing: I don't see it being an issue with the 245/40/17 tires. The inside buy the damper clears and that won't change under compression. The outside should tuck a smidge so no worries there either.
The rear; wellll, I'm going with an experiment this weekend. I'm running my 225/45/17 Kumhos on the back end. This is a compromise due to not being able to get 4 new Hoosier bits and a tight schedule. Also, getting rid of understeer is on the list and I'm pretty sure that'll happen with this setup. :-)
As far as spacers to adjust: I'd have to go out and do some measurements before I gave you an answer that I could\would back up.
I'll keep you posted and best of luck to you.

-Eric