I had assumed the 2200 was the first fan, installed in the rear. after my
reply I realized I did calculation for a closed chamber,Which may have been
incorrect.
I also stand by the fact that 1800cfm will be reached at 20mph, with 2200
coming
in at roughly 25mph. therefore in a open chamber setup the best cooling would
be achieved in stop and go traffic with trailer. where i am again assuming
you noticed
the greatest temp drop.
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