Project_SOHC_EX

Don't know if any of you guys have seen this but I'm trying to technically choose a turbocharger for a future build. One question in equation #1 ("choosing a turbine")is the 15psi also called "EMP" a universal number that will not change no matter if I plan on running more boost than that or do I plug my max boost level in as the EMP? In equation #2 when choosing a Compressor do I use the IMP number they provide or do I plug in my max boost level I plan on running, into that equation? provided by Garrett. Here is a link to the page http://www.turbobygarrett.com/....html
PLEASE HELP!!

Project_SOHC_EX

Anyone, particularly Arturbo or Direp????????????