i got the fan installed and wired today. it's mounted to a 26" crossflow radiator. like feets, i've tried just about every electric fan out there at one time or another and this thing has them all beat. the electronic temp controller is set to turn on the fan at 185 degrees. it was 95 degrees today and we had the air conditioning running on max. the fan worked flawlessly. engine temp varies a little bit depending on rpm but it kept the engine between 182 and 190 degrees. with the HHR fan the temps would climb up to over 210 with the air on sitting there idling.
night and day difference and very happy with it.
Feets, if your reading this, thanks for the info.