Correct tire pressure

Does anyone know what the correct tire pressure is for an E36 with 225/45/17 Bridgestone S03s?

The door post sticker doesn't cover 17 inch wheels.

I have been using 35 psi on both the front and back since the TI has perfect 50/50 weight distribution but I am afraid I might be under inflated.

I was told that an old rule was max tire pressure less 10 pounds which would equate to 40 psi.

I know that S03s are on a lot of E36s, so lets hear what pressure you are using.

My local Firestone dealer just said 31 front and 32 rear. Sounds very low to me.

I wouldn't go under 35, and even that is very low, especially for a car that is modified like yours and likely gets driven aggressively (correct me if I'm wrong).

Try different pressures, ranging from 35 to the max on the sidewall. Choose what feels like the best ride/handling compromise.