I've seen many posts of ppl wanting to put in cooler thermostats, and other people arguing that mazda engineers had the thermostat openening at a set temperature for a reason. Here is an interesting read that covers coolant flow concepts, thermal efficiency, heat distribution throughtout the engine, and radiator fan selections.
http://www.grapeaperacing.com/GrapeA...ingsystems.pdf

 

Good read, interesting stuff.

 

agree'd good info

 

possibly worth putting into the archive or something?