| I've been designing this setup on and off over the last three years and finally I've got a prototype to fit test. My original plan was to use a Meziere motor/impeller assembly but their pricing was way too expensive, so I bought a CSR replacement unit and modified my design to fit it. Surprisingly the CSR turned out to be, in my opinion, a superior pump in that it's shaft seal and impeller retention is better engineered to allow easier disassembly so I could machine off two mounting flanges, strip and re-anodize. Since the adapter plates are prototypes, I'll be changing a few things before the production parts are made, but for the most part these are 95% representative of what the finished parts will look like. On with the pics... I call this the "block-plate", since it mounts to the engine block. Note the eclipsed coolant feed hole on the right - the pump motors are 4" in diameter which, if placed on center with the coolant hole in the block, will hit the timing belt idler. So, I offset the new pump motor away from the timing idler.
 Next up, the "mid-plate". It provides a smooth bolt-hole-free bottom surface for the impeller pocket and allows machining the pressure outlet orifice without having to use a 5-axis CNC.
 Lastly, the "top-plate". This part provides the pocket that the pump impeller works within, the roof to the outlet orifice and the bolt pattern for the pump motor.
 CSR pump motor installed.
 For the non-VG30DE(TT) die-hards, this is where the pump will go.
 Block-plate installed, note the contour to clear the thermostat housing.
 Mid-plate loosely installed for reference, same countour as block-plate for thermostat housing clearance.
 Top-plate installed, sandwiching everything together. This part is beyond the thermostat housing now so it is the full diameter of the pump motor.
 Several pics of the pump motor/impeller assembly installed.
 
Thanks for looking.
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VG30 electric water pump prototype - 
