340 coolant temperature

he is correct about the open holes letting air thru but if you look closely you will see that my fans are sealed on there entire diameter with a high density foam weather stripping. the fans when on pull air directly thru the core. then at high speeds the air blows thru the holes. my design is not perfect. hell far from it. but........ i was sitting in traffic on an 83* day and watched my temp go to 185* the fans kicked on and dropped it down to 170* in the time it took for the light to change. I sat in bumper to bumper traffic for over an hour with a pretty much race built big block and stayed between 170-182*. gonna call that a win.