3. It has a potentially useful looking solonoid on the side of it, that (might?) even work to regulate PS pressure
I'm very tempted to try it, just to see what happens, but I still have to get rid of that damned PS pump.
The useful looking solenoid changes fan speed with engine temp(takes it's input from the fan speed control computer) so I'm pretty sure it regulates hydraulic pressure in the fan pump (assuming higher pressure = faster fan speed).
It's worth a shot, the 1jz hydraulic fans are very underrated.