D5 speed for phobya 1080?

[grandpatzer]

In the system in picture below (click for larger), I'm Running a Laing D5 with EK top on speed level 1.
It's 2x 360 Magicool extreme, 2x 7950 EK FC fullcover, some tubing and so on.

If I replace the 2 360radiators with a Phobya 1080 would I still be able to run the pump at level 1?

 

[toolmaker_03]

I hate to be this way but could you explain the tube routing that you have on this rig? The D5 pump is a good strong pump I do not know if you would want to run it at 1 but it would still move water through that rad if that is what you are asking.