hey guys I got a h22 motor that I'm swaping into my 90 accord so i was woundering what would be the best
2.1/2 inch or 3" inche could air intaje ?

Go with the 3"

you'll be limited to the diamitor of your TB. i would suggest ussing that diamitor. i dont reamber exactly the TB size is off the the top of my head. but the most important thing is the size of your air filter. use this equation so your not bottlenecking airflow.

http://www.gnttype.org/techarea/turbo/airfilter.html

there is some other really good universal information in the technical pages.

lol this kid isnt gonna have no super fast drag car, its not that important lol.

lol this kid isnt gonna have no super fast drag car, its not that important lol.

hey guys how much boost can i run in my h22 motor ?
I got crower rods
steel crankshaft (aftermarket)
stock pistons
how much boost can i get 6 ? or more ?

lol, you have what now?? what kind of bearing do you have? stock fasteners, or arp? what kind of head gasket do you have? whats the mill of the head? whats your compression ratio? are the piston rings stock too? is the stroke on the crankshaft stock? stock head??
shit son what kind of people do you take us for? give us a little more specifics.......

lol, so your planning on doing a CAI on a turbo ehhhh?