Renix open coolant system upgrade - fan switch solution

I have searched, and read threads after threads about this.

I have not found a confirmed working solution for the temp switch in a 92+ thermostat housing.

Has anyone found the right temp switch for this ? I dont want one that turns on too early, or too late.

Look, this ain't rocket science. Doesn't matter renix/OBDI/OBDII.

At what coolant temperature do you want the auxiliary fan to come on? 260/250/240/230/220/210????

If you want it to come on when the coolant is at 215 degrees just go into NAPA, with the 92+ thermostat housing, and have them look up in their big book of sensors for a sensor--doesn't have to be a switch, you can use a sensor to trigger a relay's ground--and get a sensor/switch that closes at 215 degrees--KAPOW, your auxiliary fan is running!!