High oil pressure?

[carl hinkson]

Originally Posted by Ed Wright

"Many smart engine builders use HV pumps so as to have enough volume later in life of the engine as clearances begin to get larger from wear."

What actually happens is the pump bypass stays open, peeing un-needed oil right back into the pan.

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On a EOM or Mellings pump when the oil is bypassed and peeing back to the pan how does this happen as there is no orface in the pump cover to do this.

That being said on those HV pumps years ago we use to drill another bypass hole in the cover and bleed off the extra oil pressure when the oil was cold but when we did this we never saw pressure go over on the average 72 pounds.

Since Melling has come out with the 10% more volume pumps years ago we have never used a 25% higher volume pump.

That intersting pumping pans dry as where are you going to put 5 quarts of oil in that engines when the pan is dry.