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. Could you post
a picture
of your adapter? Trying to figure if I can pull the heater feed for the
cockpit out the adapter.
Why not use the stock heater outlet from the block? These are photos of the
EWP adapter block before some mods. I have now cut off the hose nips and
welded on larger 1" nips for 1.25" hose. I also changed the outlet to flow
straight out to flow into a coolant header tank. I've also put a plug in the
turbo coolant return, and return this to the header tank instead.
The pics of the header tank are also out of date as I have now welded on an
aluminum filler neck and have a 18-22# cap on the top, and have it mounted
properly to the F/W. The heater hose return can be seen under the header
tank. I would send a couple of new pics, but the plane is outside in the
dark right now. Tomorrow after work I plan to remove the wings, and bring it
back into the shop, then I can take a couple of new pics.
What is the head pressure on your unit and the pump curve for the Davies
unit?
I never measured pressure differential during my tests, as I only measured
system pressure, which I had pressurized to 20#
In case you missed them here are the results of my tests:
I ran the first test with the Ford evap cores in the system, plumbed in
parallel.
Max flow 9.3 usg/m 35 l/m
12.07 volt battery supply voltage
4.3 amps current draw
max inrush current draw at 100mS - 6.8 amps
Second test had no evap cores in the system. Simply recirced water
through pump - engine - header tank - pump.
max flow 13.0 usg/m 49 l/m
12.06 volt battery supply voltage
Third test, I plumbed in a set of GM (Harrison) evap cores in parallel,
into the system. I hung them just below my mounted Ford cores, using they
same pipe sizes in an effort to have comparable test conditions.
max flow 7.7 usg/m 29 l/m
12.4 volts supply voltage (I hooked a trickle charger to the battery)
In each test configuration test results are with heater valve closed.
Heater core added .5 usg/m in each case.
continuous current draw - 4.3 amps
max inrush current draw at 100mS - 6.8 amps
max inrush current draw at 250uS - 13 amps
continuous current draw at minimum controlled flow - .2 amps
Hope this helps
S. Todd Bartrim
Turbo 13B rotary powered
RV-9endurance (FWF)
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm
"Whatever you vividly imagine, Ardently desire, Sincerely believe
in, Enthusiastically act upon, Must inevitably come to pass".
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