Hmm. I'm considering swapping out my Bonneville core (5.5x11x2" finned) for one of these transcoolers to quiet things down a bit.
I'm currently running 25mm delta WFB1212M fans at 7v....less than optimal flow for this thick core.
One option is the mid size transcooler with 7.3" finned width (the one that JW linked above), which I would have to modify to fit the front of my case....it has 16% more frontal area than my 2" thick heater core.
The other option is the transcooler one size down ( 5" finned width) which is 25% less frontal area than my core.
No doubt the deltas will pull more air through the 3/4" transcooler, even at 7v, and hopefully quieter too.
The Sunon 2123xst 120x38mm fans that ferdb talks about here:
http://forums.procooling.com/vbb/showthread.php?t=10790 are probably both stronger and quieter than my deltas.
Any thoughts? The thick heater core would obviously benefit from the 38mm fans. Would the smaller transcooler /38mm fan combo work at least as well as my current setup, or is the bigger one worth the extra trouble to modify and mount?