X-Mozilla-Keys:                                                                                 
Fredmoreno@aol.com wrote:

If the flow rates are as low as 30 GPM, the heat transfer in the radiator
will be reduced substantially.  If you can not get more flow, I suggest
multiple passes in the radiator to get higher flow velocity in the tubes and
thus improved heat transfer coefficients on the coolant side. It is also
better to keep the radiator as hot as possible for more heat transfer, and
this means higher coolant flow rates (lower temperature drop on the coolant
side).

Fred

Interesting. I think Jeff concluded the same Fred so that is why he is 
working on a better pump. My back to back radiators will be in series 
and Jim Mosur are also in series. 

Paul Lamar
 
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