Meziere water pump

I can't tell you about the Meziere pump but I have been running a CVR electric pump in my car for a couple years with no issues. You can't run a thermostat. Take the thermostat out and cut the guts out of it and put it back into place as a restrictor plate.

Same. My CVR has been in service for over a decade of street use.

You can gut a stat as said or buy their restriction ring kit. It has 3 sizes.