Not to stray too far off topic, but I've got an interesting question that I believe could be informative to others from one who knows the answer:

I understand that it is perfectly fine driving with no IC Pump (at the expense of power loss) but it wont ruin the motor by doing so.

Now I've driven N/A XF before, and when my 3.2 S/C is not S/C'd due to IC Pump, it feels far slower then the N/A XF.

Or is it that I don't accurately remember how quick the N/A was?