My main question is how reliable are these units when compared to their mechanical counter parts? One of the things that has scared me away from electric water pumps is the fact I hear of them going out so much and unlike the mechanical ones their is no warning. When it dies your just screwed plain and simple, their is no early warning weep hole. I had to change my water pump recently so I still have an old core just sitting around, so I was thinking of about using the old core as the housing for an electric pump. Is the switch worth it or am I better off just running with my cam driven pump for the time being? Also which pump do you consider the best, personally I don't see why our cars need a flow rate up to 55 GPM.

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