it was rebuilt to same spec just with diffrent brand steel wheels this, time and stuff was machined properly, before when i had it on the car i dont believe was built properly but now it is. and 100% old one running 13psi and now same settting 20psi with no boost leaks just disconnecting alone the ebc standard spec is 15psi thats wat the turbo guy said and he was spot on the money.
the reason i didnt list mods before is cause ..well read the post. dunno how it will help
rebuilt, forgies etc and all the rest that comes with rebuild bored 20 thou etc, fmic, 550cc injectors, rising rate, f/reg,fmic,xhuast,remapped ecu, z32
but that wont effect the orginal question
all i know is i got it running at 18psi now dayly and its alright