Lol, mtcn is throwing you under the bus, defending an argument that you are disagreeing with, and now you’re just hurling insults because they disagree with me, even though we both think you’re wrong… this is too rich.
It depends! Even if we assume they are all the same fans, running at the same speeds, there is still a PQ curve to account for, in addition to any obstructions (radiator, chassis air-hole machining, filters).
I would say no, which is why I joked about the “8 - 5 = 3, therefore positive pressure” math before (no offense, we’re all learning (maybe not the know-it-all’s, but hopefully!)). In the abstract, sure, if we’re accounting for a singular set of obstructions, but most fan specs are measured without resistance/obstructions and don’t scale linearly (thus the PQ curves, which are typically measured in free air and will of course change in the face of resistance).
Edit: what we can say is that there are really diminishing returns for push-pull in a chassis, to the tune of 1-4 degrees. I’m sure someone else can speak to why things don’t scale too well, so I’ll leave it to them. I’d say that there’s so much resistance (due to radiator fins, chassis holes, and filters), that there’s only so much our sweet little fans can do, but I feel like I read that the same happens in ducts and other more optimal conditions.
