Well explained, Erich!
System is a closed loop...check. Straight water caries more BTUs than
radiator fluid...check. Move the straight water in the closed loop rapidly to
exchange heat and prevent boiling in the engine...check!
This product claims to work very well with straight water
http://www.valvoline.com/pages/products/product_detail.asp?product=96
One will want to add some lubrication/anti corosion/surfactant to the water
to keep the Cooling System Stuff happy.
High quality high flow water pumps (Edelbrock has an outstanding pump)
consume an insignificant amount of hp vs a stock pump for it's gain in water
flow
over a stock pump.
Best,
Henry
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