From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] EC2/3 Mixture Correction Table
Date: Fri, 18 Feb 2022 05:49:51 +0800
References: <list-683618@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Message-Id: <838C47C5-5CC9-48AD-ACDB-4C159E86DFFF@gmail.com>

Thanks Finn for the feedback.

Yes, I think even with the 8 table configuration I see areas in the map =
where its hard to get it right.
I=E2=80=99m installing a better camera mount today so I can record the =
EM3 MCT display and Wideband on the Dynon so I can do some more post =
flight tuning of those areas hard to pickup in flight.
I wish I could adjust the code of the EM3 and change the O2 to Wideband =
instead of narrow.

Cheers

Steve


> On 18 Feb 2022, at 12:10 am, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
>=20
> You're still way ahead of me.
>=20
> I thought I had auto-tuned all tables. Yet found it going lean when =
added throttle to climb around 4,200+ RPM. Disconcerting. Could be =
change in AOA influences intake. Need to fly and tune more. Only 33 =
hours in the air so far. And yet now have to do annual condition =
inspection :(
> About 3 shots of prime in 80F + temps. More in colder temps.
>=20
> Finn
>=20
>=20
> On 2/17/2022 3:42 AM, Stephen Izett stephen.izett@gmail.com wrote:
>> Hi Guys
>>=20
>> I=E2=80=99m using an EC2 with an 8 table MCT
>>=20
>> Ive never adjusted the early table entries that only get used during =
those initial moments at startup.
>> Our Renesis 4 port, at startup initially runs just below 1500 rpm and =
over the next ~ 30 seconds warms and then idles at our desired 1800 rpm. =
The RD1C can make some noise if we lower that idle.
>>=20
>> As its pretty tricky to get mixture readings as the engine first =
fires up, I=E2=80=99m wondering if anyone has experimented with playing =
with those early addresses of the MCT and found this has made for a =
sweeter startup.
>>=20
>> Also on startup I have settled into giving 4-5 priming shots when the =
engine is cold. And only a few when warm. It takes double or triple the =
revolutions to start when warmed up.
>>=20
>> Our OAT is generally somewhere between 60-85F
>>=20
>> I=E2=80=99m wondering what others with similar warmer climbs have =
found is the best technique.
>>=20
>> Thanks
>>=20
>> Steve Izett
>> Perth Western Australia
>>=20
>>=20
>>=20
>>=20
>>=20
>> --
>> Homepage:  http://www.flyrotary.com/
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>>=20
>=20
>=20
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>=20
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