I got a couple of those blowers I linked to above (at $4 each, might as well have a spare) and
finally got around to mounting one.
I happened to have a coolingworks 6x6 plastic shroud and a cover plate for the hole for a 120mm fan (comes shipped with the FS020 - and now I'm wishing I hadn't tossed the others).
It appears to work fine as an impeller - starts OK at 6.25VDC, and at that voltage it moves what appears to be more air through a 6x6 radiator than a L1A at 7V
and is fairly quiet -
once I disassembled the one I was using, removed the ball bearings and repacked them with decent (amsoil) grease.
I now know that it's fairly difficult to get an impeller that pushes over the outside of a motor housing on
exactly straight. And
exactly centered seems almost impossible. The closer I get it, the quieter it seems to run (duh!). I've left this one running "on the bench" for the last two days to check "infant mortality" (turned it off to take the photo, though).
...
More details when I get it installed - although, again, all I have for measurement is a CPU diode - should be able to leave everything else in place so at least there'll be a
hint as to how it performs relative to my current 2-stacked-L1As-at-5V, which in turn were
about the same (cooling-wise) as a single L1A at 7V but noticeably quieter.
Anyway, I was struck by how
easy it was to get this mounted on a radiator and thought a photo might be of interest to someone else here (even though it's not a big-assed blower on a big-assed heater core
)