I have a semi build turbo y7. when I rebuilt it I used a brand new z6 oil pump from Majestic. At start-up I have around 90 psi (-+5 psi) cold, when fully warm I have like 10-12 psi at idle, 40 psi at 3000 rpms cruising. I know the helms says that 10 psi at idle is ok, but my Bro-in-law has a completely stock block z6, turbo and runs around 20psi at warm idle. Oh and my gauge is an autometer phantom. Thanks for your help guys.