"Cy Galley" wrote in message
news
iFEc.5861$Oq2.2704@attbi_s52...
NACA vents are some what difficult to get to flow.
I had read somewhere, that NACA ducts are poor at pushing air through
something as restrictive as a radiator. Add to that, the side of a cowl is
not a high pressure area, (lower than the front of the cowl, as a matter of
fact)
Push comes to shove, your friend may have to do a total rethink on the
setup.
--
Jim in NC
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