Ive got a ported one _ a touch over 40-45 at idle and 60 while cruising at WOT its all the way over on the dash

 

I remember someone saying something about the pump needing to be shimmed or something I didnt do that I just tightened up the pupm is that where I screwed up at cause my oil pressure gauge doesnt peg out at WOT?

 

I think that you only need to shim it if you're using a double roller timing chain, for clearance.

 

Not the kind of shimming Im talking about. Im referring to shimming the pressure relief valve of the pump. Thats how you get a high pressure pump.

 

How do you do that? I dont know what the pressure relief valve is. I may be pulling the motor shortly to rebuild it since its burning oil now. Hopefully its just a messed up valve guide seal.

 

My ported LS6 pump makes about the same pressure as the stock one. I don't think that there is fundamentally really any difference between them. However, shimming that relief valve would probably work to increase peak pressure.

 

You dont have to shim it. Thats just how a high pressure pump is created. Pic below. You can see the relief spring and where it is located in the pump. The small plug towards the end is removed and shims inserted.

 

Why Do You'll Want So Much Iol Pressure 30 To 40 All The Time Is Good To Much Is Not Good Either It Will Wash Out The Bearings Faster. That Is Not Good Either.so In The Middle Is Good. I Go Off Of Idle It Should Be Around 30 To 35, As Ling As It Goes Up And Not Down When I Give It Gas It Is Good.

 

I do not want that much pressure. I just got a plain old pump. Just showing how it was achieved and what I meant by shimming.

 

Thanks silver Im going to check it out if I have to pull the engine. Im going to do a compression test tonight or this weekend and see if a ring is toast.