I have a two quart unit, going directly to my block, via a modified
oil filter adaptor, using the
oil return inlet on the Canton filter adaptor, which was previously used for the
oil return from the cooler and filter. I have my discharge (valve end) end slightly higher than the end with the pressure gage, so if oil foam gets into the A'sump, it won't slowly build up and reduce my oil capacity in the A'sump.
i was only using it to pre-lube, and when on a track. But having stripped a distributor gear about two weeks ago at about 5K RPM, but instantly shutting my engine off and coasting, and fortunately not damaging my motor, and then having Bob Olthoff ask why i did not have it "on" for normal driving, which would have given me a bit more safety for a few seconds with no oil pump output, i have now decided to prelube, then leave it on at all times, i just shut it off just before turning my motor off, i rev it slightly for a few moments to charge it for the next cold start. I have a lit switch mounted low on my dash to tell me if it is on or off.
Remember, the A'sump will always fill with oil, even with the switch off, but it will only release pressureized oil with the switch on.
hal