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Mauledriver(at)nc.rr.com
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 Posted: Fri Mar 28, 2014 5:55 pm Post subject: Need help with FloScan re-location from tunnel to engine com |
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Can anyone point me to any installation pictures of FloScan
installations where the unit is mounted between the fuel controller and
the spider? Any links or pics appreciated.
Background:
I've decided to change the location of my fuel flow unit from the tunnel
to between the fuel controller and the spider. I've seen a few pictures
of other installations but I know I've seen some I can't find at the moment.
I've gotten quite comfortable with the tunnel installation. There's no
doubt that it's a bit inaccurate with the boost pump on but that's not
really a problem.
However, the folks at Airflow pointed out 2 other issues that I'm in
fact experiencing:
1) Fuel flow readings fluctuate a bit, as recorded by my GRT system.
It's only plus/minus .2GPH but it limits the accuracy of my nozzle
tuning efforts. I'm tuned up pretty good right now but I'd like to
improve it a bit more.
2) During full power climbs my fuel pressure drops a bit below where it
should and that causes me to turn on my boost pump for short periods of
time midway up during my climb outs. I can't recite the exact reasons
for that as described by Don Rivera at Airflow, but it's related to the
restriction of flow sensor and it's location between the tank and the
engine driven fuel pump. As I understand it, it's best to have as few
restrictions as possible upstream of the fuel pump. And having
inadequate fuel pressure during full power operations is undesirable.
Bill
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bwestfall
Joined: 22 Oct 2008
Posts: 131
Location: Portland, OR
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| Posted: Sat Mar 29, 2014 10:05 am Post subject: Need help with FloScan re-location from tunnel to engine com |
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Bill,
Mark Cooper's blog has some pics and a description of his mounting in the
similar location.
http://myrv10factory.wordpress.com/2012/12/10/red-cube-relocation-garmin-gtn
-750-tx-fixed-par100ex-music-limitations-and-afs-screen-tweaks/
-Ben
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