@MB I'm running a frozen boost type 10 (I think), water cooling is achieved by 2 10" craig davies strapped to a radiator thingy that I think is an evaporative unit from a tractor AC.
That lot is mounted under the tray along with a bosch water pump and fans and pump are switched from the dash. This to facilitate warming the great silver frog on chillyish QLD
winter mornings. Have a temp sender in filler on the IC itself, dash mounted gauge to monitor. With the unit working the gauge needle doesn't move.
Will endeavour to dig out the pics of the setup over the weekend. Did have to body lift by 1" to clear the IC/ plennum under the bonnet.
@nissannewby is the go to man for the plennum if you go down that route. Keep in mind you've just done the hard yards on the TS research to get your unit to operating temp.
I'm convinced the W2A makes mine run too cold so will try higher rated TS.