I know it sounds like a dumb question, but its related to my gauges. I have a oil distribution block for my guage+turbo, and since I swapped the ports the two use, I'm getting 25-50% less oil pressure than before. At idle before adding the turbo kit, it was always >15psi on the gauge, now it drops to almost 5psi.

The problem with that is: I knew it was perfect pressure before adding the kit, but between adding it and changing spots, I really can't recall seeing where it was. I'm sure I saw good pressure at that point, but I just can't visually remember it. A engine builder I know said he's seen that a few times with oil dist. mani's, but I just want to be sure.

 

Nobody knows what psi the stock pressure sender sends a signal?

 

<4.xpsi as far as I remember.

 

Thanks

 

why do you have the pressure gauge and the turbo on the same circuit? Since oil is being fed into the turbo there is going to be a pressure drop at the gauge.