All jets respond to pressure changes pretty much the same. If you know the pressure the jet is rated at and you increase the pressure to a higher value, the flow will increase at the square root of the ratio of the pressures.
If a jet flows 120 cc/min at 40 psi, and you increase the operating pressure to 100 psi, the flow should increase to :
sqrt (100/40) = sqrt (2.5) = 1.58 ----> 1.58 x 120 = 190 cc/min
Larry
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