Does This Debunk the "Coolant Can Flow Through the Radiator Too Fast" Idea???

Nope, Swinger 340, wrong. The more rows of cores [ 3 core for Air Con car ], the more AREA the coolant is exposed too that will remove heat. The coolant exiting a 3 row rad will be cooler than the coolant exiting a 2 row rad, all lese being equal. Hence the use of bigger rads for AC cars because they generate more heat, & only the rad can shed the heat....