How the Radiator core stacks up
Our 2 row of 1 inch tubes out cools our 4 row copper and brass by 40 %
its all about tube to fin surface area , the amount that the tubes attach to the fins
You have to get the heat from the coolant to the tubes to the fins to the air
The more air gaps the more the air is disrupted
look at the core sample picture down below
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