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----- Original Message -----
From: Dale Rogers <rogersda@cox.net>
Date: Tuesday, October 19, 2004 12:24 pm
Subject: [FlyRotary] Re: EWP
Not using the controller, leaves three basic
options: (A) wire direct, pumping full flow all the time
and using a thermostat to maintain minimum heat.
(B) wire direct, with no thermostat, and run cold
during decents and other low-load conditions.
(C) Put in a manual speed control.
Rusty's concern - inadequate "minimum" flow speed
- can be dealt with fairly easily.
There is an option (D). Run two EWPs. The first wired direct. The second
wired to the thermostat. Y'ed off of and into the
engine, such that each feeds a seperate AC core. Summit racing has some smaller pumps with 3/4"
fittings. I'd feed these two into a 1" common hose.
Redundancy and smaller current draw except when
absolutely necessary (the smaller pump only pulls
5amps).
The technical problem I haven't figured out, when it
gets cold how do I keep the unused radiator from
freezing solid when it has zero flow.
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