Today's Message Index:
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1. 03:28 PM - RPM pickup and CHT/EGT probes (jbuseman)
2. 04:59 PM - Re: RPM pickup and CHT/EGT probes (daniel young)
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| Subject: | RPM pickup and CHT/EGT probes |
Hi, what is the best way to get tach information to an EFIS display? Would it be
from the P-Lead off the ignition switch or does someone manufacture a device
that can convert the info from the tach cable and send it electronically to the
EFIS system? Also if you had up to 14 probes that could be used what would
the ideal setup as far as number of EGT's, CHT's and their location. Thanks
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=288654#288654
Message 2
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| Subject: | Re: RPM pickup and CHT/EGT probes |
Hi Joel
I used the GRT EFIS and really like the thing. I picked up the tach signal at the
mag switches and ran each into a switch that selects L or R to send back up
front to the forward (master) EFIS box. As I recall, GRT gives you a resistor
to put in line with the signal from the mag.
For the temp senders, I am looking at all 9 EGT and 3 CHT. I wired senders for
all 9 CHT because GRT told me 2 years ago that they were upping the channels to
the EFIS to handle 9 + 9 from a radial. Still waiting for them to come through
with that mod but don't really care if they don't. 3 CHT's seem like enough
and they all run about the same. Having all the EGT's is good for knowing exactly
what is going on with each cyl and for IDing where a fouled plug or ign wire
might be.
Dan
N12DY
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