It's not just that I want a more powerfull pump, I want a more reliable one because I don't trust my L30s! I belive that a pump with more power than my current L30s should give me better temps as my rad is kinda big. As I see it there aren't too many pump setups that fit these criterias. A few Iwakis, 2x top barbed DDC-Plus, two 50Zs or maybe two D5s.
I'm currently running this rad and a storm G4. I use six of those fans. They're NOT quiet but I can stand them on low speed. Maybe I'll get new fans some day...
I have plans for more blocks and some peltiercooling.
Two L30s need quite a bit of room, and one Iwaki, two 50Zs or two D5s wouldn't be much smaller. Two DDCs wouldn't require as much space. Controlling two DDCs with a miniNG manually from win or automaticly depending on the cpu temp would be sweet! And probably very silent too. A couple of
DDC-Ultras in series with
top mounted barbs (article showing a regular DDC not the new more powerfull one) should be quite a bit more powerfull than two standard DDCs. I havn't seen any data on this setup so I can't know for sure, but that just makes it more fun to try!
It's very possible that Iwaki 20 or 30 would dump less heat and be more powerfull than two DDC-Ultras with top mounted barbs, but hopefully not by too much. And with the miniNG, space and noise arguments two DDCs feels more tempting!