just got a GSR oil pump for my LS/V. when slowly revving the car to see the oil pressure, i notice that at like 4k rpm, the oil pressure goes to like ~72 psi (which i know is normal) and then just all of a sudden drops down to like ~58 psi. is this normal?? last time i lost oil pressure, i spun a rod bearing. im not trying to let this happen again.

 

bump. wtf is going on?

 

Sounds like a bad pump relief spring, is it new or used pump?

 

brand new from acura.

 

dropping down to 58 psi at 4k is not good at all, did you reinstall the o ring under the middle cam cap? was the oil control orifice in the block when it was reassembled ?

 

i am about to do the same oil pump swap and was just wondering what the pressure should be across the board and what is the vtec oil pressure at that port in the head