Quote Originally Posted by SteveRo View Post
One of my next experiments is going to be -

boreas - block - feser quad - ST 355 with XSPC top - boreas

I will lose significant flow going from 1/2 inch to 1/4 inch but worth a try anyway don't you think?
http://extreme.outervision.com/tools.jsp

well it's only worth while if your water temps are above ambient . if there below ambient then its counter productive . as in the rad will be heating the water up.