Radiator suggestions

Not trying to sidetrack this, but I think this is a relevant argument. Tell me using @Rat Bastid's example you disagreed with, how three rows of .75 tubes can out cool two rows of 1" tubes. That's a full 1/2" more of tubes (2") versus 1.5". Also of note is, he used that as but an example. Most two row aluminum radiators (the good ones anyway) use either 1.25" or 1.5" tubes, so that's even more cooling ability


I never said 3 x .75" would cool better than 2 x 1.5"

He was saying the flow through the rad was the most important aspect and I disagree. I say that all the variables are important but you will get no heat transfer without surface area so IMHO fin count is the most important variable as that is 100% responsible for the heat transfer, the more fins per inch the more contact area between the tubes and the fins, the more heat can be transfered .