Are these fans any good for my rad?

yes, 120x38mm have higher static pressure (pushes air forward instead of sideways)... this helps with the dense structure of radiators

HOWEVER, 52CFM is fairly low for a 38mm fan and you won't get the sort of cooling you're looking for... I would suggest a 70CFM minimum... some people get higher ones ( 110ish CFM) but these require a fan controller to make them bearable

I have a 360 & 240 HW-Labs Black Ice extreme (note not the GTX version), so this fans will not do at all?

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You want at least some 86cfm Pana on a BIX..86cfm Pana ..These would be better..Panaflo 120x38mm 115cfm ..There what I use on my GTX and BIX...120x38mm fans have higher pressure and will give you better performance on higher fin per inch rads..

Shrouds help a lot to, on any rad...

..How To: Make any Sized shroud in 2 minutes

..How To: Build A Performance Shroud

..Part-1-480 GTX-Temps W & W/O Shrouds

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I was hoping to see you ira Good post as always! how do you do this?

Anyways, if I want the Pana fans, I must get them from the US, will it be worth it? Also is there any good pre-built shrouds that you can buy out there?

Thanks again

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.. ... ...You could do a push-pull with those fans you linked and have a killer set-up..

But how much of a load is on your rad? If you just have a CPU and maybe one GPU those lower cfm fans might be all right..You could even just try them on one side first and only do the other side if you have to..I wouldn't pay a lot of shipping on them, its not worth it..

Shrouds are hard to find other then making your own, even gutted 120x25mm fans will do a lot of good if thats all you can find, I've used them from 1/2-1.5" and they all helped...

They have these that you might be able to find there.Feser TFC Xtender - Radiator Shroud 120 - BLUE LED ..I wouldn't spend that much on one myself, just gut a 25mm instead...

Can you not find any higher cfm Papst fans there? A friend of mine used to like those and I think they were 80 something cfm...

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thanks! I only have cpu right now, and when my 4870x2 comes back from rma it will come in to other than that, nothing! So maybe I should get some papst fans instead then?

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If you can find some decent cfm ones, say 80+cfm, 120x38 would be better on a BIX to..Or if all else fails you can do a push-pull with the lower cfm fans, that will bounce your cooling potential on up quite a bit..I just hate to see you pay for shipping from the States, this stuff is expensive the way it is, add all that shipping onto it and its just crazy..

If you don't mind paying for shipping these are the rad fans I use..Panaflo 120x38mm 115cfm..Those Delta By-Tor linked to are good to...Neither one are pacticualry quiet, but they work well..

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ok I might order some Papst 80+ cfm and cut my old fans to make shrouds! think this will work good?