Quote Originally Posted by Acekiller View Post
50 PSI (3.5 BAR) is the pressure.

Also what is lower RPM do you mean like 50 cfm or 25 cfm or 75 cfm. As for the Radiator I will go for Feser X-Changer both a triple and a quad radiator.

I want to know what the best fans are I have been look at 2 different models.
http://www.quietpc.com/gb-en-gbp/pro...kazejyuni-1200
http://www.quietpc.com/gb-en-gbp/pro...kazejyuni-1900
Either one of those two would be great.
That sounds like a D5...don't even think that pressure rating is what you'll get, that's how much the housing can handle, not how much the pump produces. You want to look @ max head pressure to determine pump strength.