Er, I had the 56DBA or so Delta model in my case and it gave me hearing damage. My suggestion is that the amount of cooling you get isn't worth it in the long run. You can still overclock with lower level fans too. It's annoying as heck, I hate myself for it, it was a waste of money, and my future system is going to be silent as the forest no matter how much I pay for it.
Considering that the entire motor is covering the CPU which needs to be cooled, I don't think it would work out too well.
Even going to a 92mm fan instead of a 80mm fan with a large heatsink allows the CPU to run warmer because the air just passes on the sides of the heatsink and does not have enough pressure to push air down the center of the heatsink.