Thanks for the update.  Looks alot like mine, so maybe the difference is in the duct work??  Would like to see the difference when the EWP drops off.  Is it in series with the engine pump?

I tried to apply some of Ed's Law to the ducting of the radiators, and though I didn't get it perfect, it's probably far superior to what I would have done without his guidance.  The oil cooler scoop isn't quite as well shaped, and perhaps it shows in the temps.  I'm also running only 25% coolant, with 4 oz per gallon water wetter, which might help the heat transfer.  More than enough freeze protection for North FL. 

Rusty (off to bed, to have nightmares about the pager going off at 7:00 am...)