cooling a T2

[craybait]

Has anyone tried the davies- craig electric water pumps which can be an' add' in or replace the mechanical pump.They claim a saving of up to 20 hp.They won a huge contract to supply them for hybrid cars.The unit can be progamed to keep water flowing after engine shut down till a desired temp is reached,they can also be programed to keep an engine at the optimum running temp?does any one know the temp