Great work and info Martin...so please don't take this the wrong way. Just wondering why your putting so much time and effort into these flow tests? I've been wc'ing now for several years and have noticed that unless I turn my pump down to almost no flow that my temps stay pretty much the same throughout the different flow ranges.
I have a 50Z-DC12 pump that I control with a miniNG. The pump will run all the way down to 75% power before stalling out. My temps don't start rising until I get to the 75%-80% power range. I have no way of measuring flow besides visually checking flow in my res. At 75% power I can barely see the flow in my res. I run my pump between 80%-85% normally because I get no temp difference between there and 100% power. There is a huge difference in flow between 85%-100%. From casually flowing through the res at 85% to extremely turbulent and noisy at 100%. So, I've determined that flow is important but not nearly as much as many people make it out to be.
So, again, I don't mean to take away from all the work you've done and info you've provided, but I wonder how useful is the information to the average user without correlating flow with temps in some way?
**EDIT** I've just gone back and read your original post on your flow estimator. It makes sense that there are too many variables between all the different components people use to give rock solid temps concerning flow but I would still be very interested in seeing your temps as you tested the different nozzles. When it comes down to it I think we all just want to know if changing nozzles will lower temps or not.
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