Hi Kevin
Oil flow rate at the nozzles will be dependent entirely on the volume of oil the pump pumps at any given RPM, less the amount that flows past the main and camshaft bearings and the amount metered to the rocker arms.
We can only guess what proportion of the total goes to the nozzles, but given that the bearing clearances are very very small, and the six nozzles holes are quite large (between 7/64 and 1/8 inch I think), it is likely that by FAR the biggest part goes to the nozzles.
Total pump capacity was rated as 7.16 gallons per minute at 4000 RPM with hot oil.
So at idle total flow is likely around 1 gallon per minute.
And on the highway around 5 gallons per minute (assuming 2800 RPM).
So from there, your guess is as good as mine, but I'd guess in the vicinity of a little over 3/4 gallon per minute for all six nozzles together at idle.
And about 4 gallons per minute on the highway.
So...
Adjust your water flow until you are putting 1/2 QUART per minute in a container from one nozzle and you will see what it looks like when idling...
And adjust until you are putting 2/3 of a GALLON in a container from one nozzle and you should see what it looks like on the highway.
Hope this helps! :-)
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