So I fitted the Davies Craig EWP80 as an auxillary booster pump on the bottom rad hose (Recommended by DC as it would be normally primed with coolant as opposed to the top hose). As Lotsof 3146 R mentioned cavitation is an issue when the Lotus belt driven pump is ran past 2000RPM, my temps can actually increase to 93 Degrees and climbing on the Davies Craig controller readout! But on idle it will cool down faster than when not fitted, to 86 degrees when the fan cuts out (cuts in at 92 degrees). Seeing as I wanted this to forgo the need to rev the engine in traffic as the lotus pump flows very little, I think it should be ok? I fitted a valve in the bleed return to the swirl pot like Lotsof 3146 R did with little effect! Am I expecting too much from this setup?
