I just switched my stock Eagle RS-A's 195/55/15 for some Kumho 712 205/50/15.... stock B14 wheels. I had a question, because of the size difference, do I have to change tire pressures as well? Or should I just use the same pressures as my Goodyears (I think Nissan recommends 31 rear 33 front) or something like that??? Its on a AGX/GC setup, but I don't think the suspension should affect what pressures I use right... Let me know! Thanks
Anthony

Dont take this as a rule, but I always run 10-15psi. below the tires max pressure.

I have the same wheel/ tire combo as you do and i run 32-34 up front and 35-37 out back

on long highway trips i run 39 all around i enjoy the ride
and i run my agx at 3f 6r

O

I'm running on 205/45/16 w/ the GC+AGX setup at 33psi-front, 30psi-rear for daily use (which is what the sticker on the driver side door recommends), +5-10psi for autox. I've put 30K+ on the tires and haven't noticed any abnormal wear.

After learning to autocross on street tires, I ran 45/28 regardless of tire width or diameter. The SE-R had great turn-in with the stiff front sidewalls and the back was soft enough to stay in line despite the Nu-Tech rear bar.

Strange as it may seem, tire wear was "normal". Maybe I drove too hard? Camber plates made no difference in wear, but toe sure did.