Quote:

Yes thats what I thought also. i have put a new bypass spring kit in and replaced the gauge. also took the pan off to make sure I was not sticking to the bottom with the pickup. I can shim the spring and gain about 10#. The oil pressure runs the same after doing this no change cold to warm and only about 57# when shimmed. We started out with a milling HV63 pump thought that was the issue so we changed to the milodon pump. Zero change in oil pressuer after doing this. So back to the original question how much oil pressuer is needed on a motor that turns 8000 rpm.

Thanks



I would say 70#... like was said already.... the rule
of thumb is 10# per 1000 rpm... but remember that
pressure is a by product of flow vs restriction ...
you want flow to pull heat off... but I still would
be concerned that it doesnt increase with rpm... I
have NEVER seen a engine do what yours is doing