In a message dated 5/5/2006 11:35:47 P.M. Eastern Daylight Time,
keltro@att.net writes:
One other comment........There is some difference of opinion among the
group
whether connecting coolers (oil or coolant) in series (as you
propose) or in
parallel is the most efficient method.........We have group members
currently
flying with both methods.
The series method is just a bigger (single) cooler (in effect).
The big difference is that flow velocity through each cooler will be twice
as fast through the series coolers than the parallel coolers. Note the
turbulence generating dents in the tubes of the cooler. Cooled oil tends to stay
in contact with the metal and insulate oil closer to the center of the tube. So,
the turbulence generating dents. The lower velocity of the parallel hookup
would seem less effective at scouring chilled oil from the tubes.
Plus, you know for sure that the exact same mount of oil is going through
each cooler.
Lynn E. Hanover