Quote:
Originally posted by MadDogMe
Seeing this I can understand why the block is 'so' restrictive, it really needs a 12mm inner diametre barb to utilize the full flow  .
The first block I make will definatly use 3/8 thread!!. why are'nt the manufacturers doing this! :shrug: , Crazy!...
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The outer channel of the Maze 3 is 9mm wide x 9mm deep, or 81mm^2 cross-sectional area.
With a 1/2" barb (outer-diameter
), that has a 10mm ID, this supplies 78.5mm^2 of entrance area, which almost perfectly matches what the Maze 3 offers internally.
Just to really mess with your head though, I've been playing around with some water-block designs, and it can actually be more beneficial to cut the entrance down to 20mm^2, and live with the large drop in flow rates, so long as you use that flow more effectively (ala mini-jets).