The pressure relief valve in the Oil Pump is supposed to open at 101 psi - 7 bar. So assuming that is working that would be the max possible Oil Pressure. (not to be confused with the bypass valve in the Oil Filter Housing.)
On mine when I raced the engine it the max I got hot or cold was 97 psi.
If I remember correctly it take 21.8 psi to get the oil spray nozzles to work.
There was a few thread on it. It was too long ago to remember the details.
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