From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] EGT probes location
Date: Thu, 29 Apr 2021 07:14:25 +0800
References: <list-1461340@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-1461340@logan.com>
Message-Id: <4ADD8592-C5DA-4222-A176-9168CB290AAF@gmail.com>

Hi Finn

Yes.=20
An example of our EGT=E2=80=99s at WOT take off - Lambda ~0.9 / AFR 13.3=20=

1598 & 1679 - So 81 higher.
I=E2=80=99m not sure our EGT probes are inserted exactly the same =
distance into the header.=20
Not sure the variation in temp this might cause.
One of our probes is burnt out now.

Cheers

Steve Izett


> On 29 Apr 2021, at 5:30 am, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
>=20
> So, I'm using the Renesis stock exhaust manifold.
>=20
> Tried to mount the EGT probes as close as possible and same distance =
from the ports.
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> However, at high power I'm seeing as much as 120F higher on rotor 2.
>=20
> Exhaust gas from rotor 1 passes by rotor 2 exhaust port so I'm =
wondering if that somehow increases rotor 2 EGT readings.
>=20
> Caught my attention today when EGT2 got above 1,800F at 6,200 RPM and =
161 mph TAS @ 3,300' density altitude.
>=20
> Any of you that's using the stock exhaust manifold run into this?
>=20
> Finn
>=20
>=20
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