Without reading the article...I can say there must have been one of the limiting factors I mentioned (Or skipped/didn't think of...) going on. I have way too much evidence to the contrary.
My off hand guess is that IF NONE of the mods worked ...it was most likely that the airflow was blocked, either on the way in (Less likely, or they would have noticed/corrected for it first...), or on the way out of the engine compartment....that's about the most likely thing to negate ALL of the mods except plain water...because that's the only one that should work by itself independantly of airflow, at least somewhat.
If the airflow is hitting the radiator like a wall, because there is no where for it to go on the other side, then THAT's the only thing you might have to fix. Once you have a clear path for the flow through the radiator...then the other mods can work. (Same applies if they had a winch in front, or a plow, etc...for those...an air dam/sploiler to force air around the obstruction and into the radiator face can help)
Adding radiator fans that are working against dead air space will prove futile.
To get the air out of the engine compartment...take out/vent the sidewalls of the inner fenders and or vent/louver the hood, trim the bottom of the bulkhead/firewall and or mount a puller fan to the back of that engine pointing down, and or up through the hood, whatever path(s) you make to get flow out of the engine compartment. (Vents/louvers alone are usually all you'd need)
....There are alot of variables to eliminate....but it sounds like a blocked air flow problem so far (My best guess)
Otherwise, its like having a car with no spark plugs, boring it over, adding fuel injection, a super charger, lower gears, Nitrous Injection, etc...and then reporting that NONE of them improved the zero to sixty times....
So - Make an idiot of me...did they say what they did to finally cool it down? (Something I didn't think of I'm sure...)
