Haven't run Hoosiers myself, so take this FWIW.

Pressures vary widely on driving habits and the car.
I was told to run my R888s at 32-34cold for 38-42 hot with 235 width on a 2700lb car.
I started at 40psi hot and wore the centers out, while the car was sliding all over the track.

I now run them at 22-24 cold and still have no issues with shoulder wear. Any lower than that and they get real vague the first few laps until pressures build. run them higher and they get greasy toward the end of a race.

Everyone is telling me to run them closer to 40psi, but I have much better performance running them at 30.

That said, Hoosiers like to wear on the shoulders- you need to run quite a bit of camber with them. as for pressures, I don't know. all depends on car, weight, tire width, driver habits, etc.