High Flow Water Pump
Thanks for the comments. I guess a common sense approach may be the answer although one would think that the angle of the vanes on the impeller could be at issue besides size, however, none of the pumps that I see advertised amplify on design and I have nothing to compare my stock pump to, so I guess I have to take the word of the advertisers coupled with common sense. Taking that one step further, I would surmise that increasing the turning ratio might prematurely burn out the bearings if it turned too fast all the time (in traffic) and like a marine propeller, could cause cavitation or other unintended consequences.
I know there are experts out there who can shed some light on this issue and would appreciate their insight.