An electric pump would likely (depending on model/gph rating etc) move the water faster at idle up to an rpm point better than the mechanical but then as your rpm’s increase the mechanical will move it faster as they all have higher gph ratings which you just can’t match with an electric. So you might have cooler running down low in stop and go traffic but as speeds and rpm’s increase you’d likely have hotter running temps. I saw about a 10-15 degree increase going from an 8 vane w/plate mechanical to a moroso electric. I put the mechanical back on, and am looking into an inline electrical pump for the lower hose to run at the track for between runs cooling.
