very scientific test (not) the only way to test any thing of this manor is to put it in a controlled enviroment (a test cell not a all day long rolling road) o and i didnt know they had worked out a way to pass air through a brick lol, also if i remember rightly the cosy motor is ment to run at 92 deg c ,and to cold is just as bad as to hot and if it runs to cold when you start nailing it you may well cause hot spots in the motor which in term is bad new sooner or later, it also makes me laught as people say the core is this and that the is a relation between air passing through a rad and the water passing through inside,and people test rads against each other and say x is better than y but the thing is that x supply y with there cores and by saying some of these rad and i coolers are better than makes like pro alloy and pace must mean that sharp edges are best(lol) hay maybe if i machine out my ports on my head to look like the shape of a brick that would work better than smooth flowing edges!!! thought not. at the end of the day if you buy cheap you will get heavy bricks but it you put your hand in your deep pockets then you will get quailty that WORK . maybe i wll test my car right now and compare it to your test that would be so accurate (not) anyway after that good luck with your hunt for a 2 deg c water temp at 300 mph. lol