What size belt for bypassed p/s??and race with wrx

[Coupe5oh]

Anyone remember the thread with the mearsurement? I need to bypass my p/s, and i already bypassed the smogpump with an 84.? belt, if anyone knows this right off hand, help me out.

I have a race with a wrx subaru at the track tommorrow, the guy was going 13.6's pretty stock, and he modded it and went 13.2 @ 101, he had to remove some mods since he had dealer work done, he said it will be in stock form, at least nothing major on the boost, i believe him to a certain extent, listen up guys, this guy talks smack, and has beat a heads and cam mustang on the street, and talks smack? i cant let a 4 banger smoke me? i figure with the short belt, a good burnout on the sport pros, hard launch, I can maintain a 13.55 or so, and keep him at bay.