Originally posted by warmonger:
I'm no 3L swap expert (not yet), but I know it still takes work to generate the power to run an electric water pump. Only difference is it loads the alternator more.
The pump draw will not be as high as you are thinking.
Also since the stock W/P runs off the intake cam it adds considerable parasitic drag to the valvetrain. Removing this drag far out weighs any minimal amperage increase the W/P creates. Plus gives the added effect of lightening the valve train (faster reving)
