Quote Originally Posted by daedality View Post
Well, I wouldn't be pushing fluid into the fillport because it's aligned on the inlet side of the pump.

As for the pressure: that's a concern. From what I understand, however, T lines neutralize the negative pressure of the pump when placed directly at the inlet, meaning the pump is running entirely on positive pressure, resulting in a higher flow rate. I'm hoping the concept is the same for Y fittings. I'll talk to him.
Oh duh! I didn't realize that you were pulling the coolant from the rad, not pushing the coolant through the rad....
You should be fine, and you won't be splitting the pressure, your also right about the T and Y lines taking the negative pressures

This is going to be one awesome set up!!