Bob White wrote:

Oops! Does this mean the SS braided hoses are a bad idea?  I was looking
at some that mentioned internal and external SS braiding.  I don't know
that much about these hoses either.  Do the come with external braiding
only?

Bob White

--
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (soon)

I think what Stewart Warner was referring to a was a reduction in coolant flow 
velocity by using undersize AN line.
Mazda designed the engine to use 1.5 inch hose and a high water flow
to equalize the metal temperatures in the block.
The problem with AN line is you need  -24 (1.5 inch).
-24 is entirely too stiff to work with. -20 (1.25 inch) is marginal.
Also these sizes are very hard to find. I used to think AN was the hot
tip but now I recommend dollar an inch  1.5" silicone hose with Breeze constant
torque hose clamps.

It does not pay to nickel and dime plumbing. It will bring you down
just as fast as a dropped valve in a Lycoming engine.

Paul Lamar
 
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