Quote:
Originally posted by #Rotor
go for flow velocity.... it is much more important than the actual volume being pumped.... the higher the velocity, the faster the blocks volume is getting replaced with fresh cold liquid.... also the more turbulent the flow will be, a very good thing.
I always say, massive flow-rate only means a lot of water went through without doing nothing to cool the CPU. flow rate needs to be converted into flow velocity and turbulence. If the pump can not handle the pressure, don't blame the block, get a better pump....  MO. And I live by it.... my blocks are all low volume high velocity designs.
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If you restrict the flow with narrow channels then there is less fresh cold liquid going through it. Contradicting sentences you have there in the same post:shrug: High flow leads to more turbulence and more velocity. When you use a large pump with a restrictive block then you are going to be at or near it's maximum allowable volumetric flow rate which it will perform better with. A block design that allows even higher flow rates will take advantage of it with an even higher flow rate. Velocity increase goes hand in hand with increased volumetric flow.