Subject: Dave Leonards cooling system
From: Rotary Engine
Date: 2/14/2006, 11:25 AM
To: AA-me


Dave Leonard wrote:
BTW, here are the numbers I am working out:
By adding 1/2 inch thickness to my rad, the core volume
will go from 540 cu.in. to 720 cu.in.
(I may add a full inch, bringing the volume to 900 cu.in.
- I'm open to suggestions on this issue)
AND I will increase the frontal inlet (and exit) area by 50%  (worth
about 80h.p. worth of cooling) - all of that going directly to the
radiator.
AND it will fit and only take a couple months to do the fiberglass
work.

Anyone think that's not enough?

How much of a pressure gradient do you currently have across the water
radiator? Increasing the thickness of the water radiator makes it resist
passing the air. If you have a barely adequate pressure gradient with
the current setup, increasing the thickness could actually *reduce* the
system's cooling capacity.  (Thermodynamics is a tricky beast.)

Russell Kent



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