daniel wrote:9" +12 wont stick out if you roll, slam the car, and give it like -2 camber.
it'll be FLUSH
215/40 f will give you high steer response under counter condition265/40 r will give you enough traction that you will not overslide, but still allow you to break out under power.
you run a rim width to put the tire size you want on it.you dont say i want XYZ tire on a XJJ wheel.
He doesn't have the necessary equipment to do that correctly.
215/40/17 on a 9" rim is not safe... I worked in the tire business before and anyone (SmithSR, Chet, Grant, etc.) that has worked in the tire business as well will tell you the same thing.
265/40/17 can either grip hard, or slide easily... totally dependent upon setup.
I have put a 16x8.5 +13 on my S14 w/ 245/45/16 Kumho V700 Victoracers and the fronts barely fit enough to prevent rubbing between the fender and tire. I had 2.5 deg. of front negative camber and the car is lowered about 2". Your not gonna convince me that adding another 15mm of outward wheel extension is anywhere near "flush".
He is looking for a setup that is good for a daily driver application. Distorting a tires contact patch and streching the sidewall to the point it now becomes part of the contact patch when the car turns is NOT something I would accept for daily driver usage, nor is it a "good handling" setup (especially a tire that has a low load index such as the 215/40/17). You will have increased wear, decreased performance, and the slim chance that the tire will un-bead itself causing a blow out (which will destroy the fender, and possibly cause the driver to lose control of the vehicle and injure himself). It's not worth it, nor is it better.
If you're going to give advice, make sure it's relavent to what the person needs, not what you want.