Agreed! Part of the reason for the faster water = poorer cooling is that
the removal of a T-stat can lead to higher operating temps, not because the
water moves to fast, but because the removal of the t-stat removed a
restriction in the cooling system, lowering the pressure in the block. The
increased pressure generated by the restriction raises the boiling point of
the coolant in the engine block, minimizing localized boiling and steam
generation, both of which lead to increased operational temperatures.
I do not have a "nifty-keen, authoritative" site explaining this, nor will I
debate it, but I've seen data provided by racer friends working to improve
cooling.
Jack
TR's 3&8
>
> Stewart Engineering( no relation) has done extensive testing
> of cooling systems, including the development of a dyno to
> measure water pumps. They are manufacturers of very high flow
> water pumps for racing, including NASCAR. You can visit their
> web site http://www.stewartcomponents.com/Tech_Tips.htm The
> conclusions they have reached indicate that higher flow rates
> improve cooling, & they call the "slow flow" theory another
> urban myth. I have improved cooling on my Buick 300 by
> changing pulley size to increase water pump speed& water flow.
>
> Jim Stuart
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