I run the HHR fan and shroud it covers the rad 100% except for 4 tiny
corners.. I had to put 2 spring loaded doors on the shroud so it would
cool down a bit more at speed..my rad is on a leaning angle to the rear so if
I didnt have the spring loaded doors on it they would be hanging open
at all times.. which would be fine while at speed but with the springs they
close at idle but open when the fan turns on