I am now ready to start building my system and unsure on which loop to use. The first photo is using only a double rad in the front which will as i only intend to cool the CPU for now is more than adequate. But with the pump I’m using the flow out pipe has a big loop in it and as i have a spare 120 rad knocking about didn’t know whether to put that in the loop as well as not much more pipe length is needed.
Adding an additional 120.1 radiator (particularly the one pictured) will only affect flow by around 0.01gpm according to the figures, so will have very little impact on CPU block performance.
Changing pump from Eheim 1250 to Laing DDC3.2 with aftermarket top will cause flowrates to increase by 0.52gpm... around another 43% more flow on top of current - flowrate will increase from approx 1.21gpm at the moment (simulated) to 1.63gpm - quite a significant jump partnered by higher head pressure, which will result in better performance of CPU block and both radiators.