not true at all. You need a quality fan with a good motor on it that draws 20+ amps. If the fan isn't drawing at least that much, its a cheezy parts store fan.
I run a moroso electric water pump, a radiator that looks pretty much identical to the one the OP has, and this Derale fan( quality US made unit that puts out a true 2000 Cfm)
And my 69 Dart that runs 11.20’s currently( new motor going in) and sees plenty of street duty never gets above 185 even in traffic. Had an 8 inch convertor, big cam, yada, yada. Flat hood, no fresh air scoop, etc.
This same setup with a cheezy 16 inch Permacool I think it was ran hot at stoplights cruising. The two fans “ looked” the same, and are same size. Moral of the story, not all fans are created equal, and it doesn't take 4000 cfm to keep a hot rod cool( and my water pump isn't a fancy Mezeire or CSR
Just the fan upgrade fixed all issues
H.O. Extreme : 16" High Output Curved Blade IP68 Electric Puller Fan
