ok guys the turbos might be pushin the same psi but might flow less air than the other for example if the star turbo intake tube or whatever has a bigger diameter then it flows more air.
easiest to think about it super16g with a 7 cm housing at 18psi in a GST makes what around 320 correct well a 20G with a 8cm housing flows alot more air at 18psi thus creating alot more power around 400-450 i think.
by the way i am new to the board i will be turboing after i get this check i am waiting for.
later
"Z"