So i have a zc with a drag turbo. 3an feed off the sensor location w/ the stock sender and an autometer sender all from the same location. I had the stock pump and at idol it was like 10 psi (warm) and at 3k or so it made around 40 psi.
I now installed a race engineering pump and have 75 psi at 3k but it still drops to around 15 at idol. Also I run 10w40.

 

nobody?

 

try the FI thread

 

are you asking a question?

 

Oil pressure allways drops down at <U>idle</U> but I don't know what kinda numbers a ZC should have so I can't get anything out of those numbers. I'm assuming the issue is you want more oil pressure at idle?