Two Loops, One radiator

[bluehaze]

So you acknowledge that more airflow = better temps but slower water flow should equal better temps? Does this theory not sound contradictory to you? You say that the more time the water spends in the rad will cool better correct? OK, lets look at it like this then. You have 2 identical loops except one is running 1GPM and the other is running at 2GPM. At 1GPM the water spends twice as long in the rad as compared to 2GPM, however, at 2GPM the water passes through the rad twice as often. So now answer me which loop spends more time in the rad?

Well of course the 2gpm what confuses me is not that, what confuses me is that lowering the flow of the water by proportion increases the volume of air and vice versa. So if you are only capable of maintaining a certain volume of air wouldn't lowering the volume of water result in decreased temps?