Does anyone know what the proper operating temp for a 5VZ-FE motor is......and what temp the stock Thermostat is rated at?

I'm trying to finish up my Taurus Fan mod and custom gauge cluster mods and the only thing left is to check that the temp gauge is reading correctly (have an infa-red temp reader for that) and to program the fan controller. I have one of them fancy SPAL fan controllers and I need to set the low (on) and high temp (max fan speed) for the controller.

'93 4Runner - 3.4L 5VZ-FE, 2" body lift, on-board-air system, custom gauge cluster, rear e-locker, electric fan, custom built front and rear bumpers, sliders, 4,88 gears...all on 33x12.5's.