Jaguar V12 cooling system upgrade part 2

Part 2 of 3 - Upgrade of Jaguar V12 cooling system to twin electric fans, with Davies Craig electronic fan controller, using some of the existing car wiring. Also an upgraded alternator (120A JCB Fastrac 1135 model) and cabling.
Part 1 can be found here • Jaguar XJ V12 Cooling ... .
Part 3: • Video

[@cosgraham534]

I was warned about annoying noise, but I cannot hear the fans above the normal noise of the engine, even when I am outside the car. I have to put my hand in front of each end of the front grill, to feel if each fan is on! There is some extra zip in the car, soon after starting it - previously the mechanical fan would be engaged for the first couple of minutes. I thought there would be more power generally, but haven’t noticed the loss of rotational mass particularly. The mechanical fan is VERY heavy and I’m glad it’s gone!

[@bernhardlist9359]

disconnecting battery plus but leaving ground connected is DANGEROUS. Always disconnect Ground first.

[@lebojay]

Are there any noticeable noise or power improvements?