X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=XpSExmN9 c=1 sm=1 tr=0 a=3W+P1/uuTVQes7LsJ5/gAg==:117 a=3YhXtTcJ-WEA:10 a=x7bEGLp0ZPQA:10 a=K7ySfSCCDxUA:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=o1OHuDzbAAAA:8 a=_6GpL_ENAAAA:8 a=7g1VtSJxAAAA:8 a=lHtBdFVv9xejc1u61mMA:9 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=-qzYZOQmwbv4-I8-mOwA:9 a=vkzNm9DOe66kqw0F:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=5YQ6H4ZxyGn-KoBYtt8s:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Matt Boiteau mattboiteau@gmail.com" Received: from mail-lf1-f48.google.com ([209.85.167.48] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1461644 for flyrotary@lancaironline.net; Wed, 28 Apr 2021 19:21:34 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.167.48; envelope-from=mattboiteau@gmail.com Received: by mail-lf1-f48.google.com with SMTP id x20so71600497lfu.6 for ; Wed, 28 Apr 2021 16:21:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=xJDLE2ga8eh3/HedjPhKnK1qQ4JnilLX41flKlDPCBQ=; b=tqybYvxn+MBR0LnGcIapTbBO1agbhvu3yZS87DSwwsWRgO5aUIQthaxBgS/MzTA4XA VUJyTO7MNtL91plVIqMhDuA5RHFSFS3eoSvMraPC1vW8YCI9vJt68ZuwJ+ixH/tEWbTi W3vFV8YhuXXXLRUn8MdqRrVkeVtJQcgn3lWL94xXaoYMK50Ac1rTnamHEsz5IrTPUqFJ Qw03h8P+6TnI8oafibQ/SR9L/SnHL2s2JOndaB8YTJOqIeq+uSwflMp/pXnfNgnj7Rkn p/bxWWeLZKgbI0+/NoFi4fYZU3zsgOpqfAcpywxsgDeY7w8J5VkNTK13Qmtf7TRlkpFv yU7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=xJDLE2ga8eh3/HedjPhKnK1qQ4JnilLX41flKlDPCBQ=; b=FpV9MKN7lUw8GrJXFGAMylwnAH5et4a0GZCQqgwogkphB+Pw1UlBF1ENoSw4zmjbqj 4SjDj4qzHBJcd8FYpGByq3ZWLDjp+Us8vdmxtVxcBg9wfMrLxm0JpYzUSo6M90jBfHRa YNf8rz0eQ4UWP59dYnj2IjqTF8LM8NTlCSwDR8yt7PxOjU/wzZPc5bdPuK6NPTkFx8LY G4E+jchLl8qTnCwgoiRqstBFdxGfGWwFiLJg4zRLuUBWAto7T+dIOLYbO5IqG1uWFvTw qeAYJTEurb1yNv2SCXL+EY6hLx7i+fJgXLzbUWLARfjVA1Fh6I9NqM/vF9WGY3KQL2Bu mvdg== X-Gm-Message-State: AOAM533T3vSxwPbOvJE90d7qZiaL1u7Ad2roq0VEeAHf6HSEYMoBeDa+ Epz7MBrE8fS6YefujOC9n6+TYuViyO0YoUpaPyOGAG3diYWXQw== X-Google-Smtp-Source: ABdhPJzqKFRKfgrD/plqezUeuX91LhwrnvQ3+dDmWD7JTRzasRcJHG66NZ4/KVi2yBOQYx9Shhseyq57dA4Av3bEhok= X-Received: by 2002:a05:6512:3f2a:: with SMTP id y42mr22009256lfa.234.1619652077585; Wed, 28 Apr 2021 16:21:17 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Wed, 28 Apr 2021 19:21:06 -0400 Message-ID: Subject: Re: [FlyRotary] Re: EGT probes location To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000be86f605c110a2d7" --000000000000be86f605c110a2d7 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Cyl 1 will be hotter since it gets the coolant the last. I can be anywhere from 50-100f difference sometimes. I think too, with our high temperatures, the accuracy of the probes probably have a good amount of +/- in there. - Matt Boiteau On Wed, Apr 28, 2021 at 7:15 PM Stephen Izett stephen.izett@gmail.com < flyrotary@lancaironline.net> wrote: > Hi Finn > > Yes. > An example of our EGT=E2=80=99s at WOT take off - Lambda ~0.9 / AFR 13.3 > 1598 & 1679 - So 81 higher. > I=E2=80=99m not sure our EGT probes are inserted exactly the same distanc= e into > the header. > 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: > > > > So, I'm using the Renesis stock exhaust manifold. > > > > Tried to mount the EGT probes as close as possible and same distance > from the ports. > > > > However, at high power I'm seeing as much as 120F higher on rotor 2. > > > > Exhaust gas from rotor 1 passes by rotor 2 exhaust port so I'm wonderin= g > if that somehow increases rotor 2 EGT readings. > > > > Caught my attention today when EGT2 got above 1,800F at 6,200 RPM and > 161 mph TAS @ 3,300' density altitude. > > > > Any of you that's using the stock exhaust manifold run into this? > > > > Finn > > > > > > --- > > This email has been checked for viruses by Avast antivirus software. > > https://www.avast.com/antivirus > > > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > --000000000000be86f605c110a2d7 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Cyl 1 will be hotter since it gets the coolant the last. I= can be anywhere from 50-100f difference sometimes.

I think too, wit= h our high temperatures, the accuracy of the probes probably have a good am= ount of=C2=A0+/- in there.

- Matt Boiteau

<= br>
On Wed,= Apr 28, 2021 at 7:15 PM Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
Hi Finn

Yes.
An example of our EGT=E2=80=99s at WOT take off - Lambda ~0.9 / AFR 13.3 1598 & 1679 - So 81 higher.
I=E2=80=99m not sure our EGT probes are inserted exactly the same distance = into the header.
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@lancaironlin= e.net> wrote:
>
> So, I'm using the Renesis stock exhaust manifold.
>
> Tried to mount the EGT probes as close as possible and same distance f= rom the ports.
>
> However, at high power I'm seeing as much as 120F higher on rotor = 2.
>
> Exhaust gas from rotor 1 passes by rotor 2 exhaust port so I'm won= dering if that somehow increases rotor 2 EGT readings.
>
> Caught my attention today when EGT2 got above 1,800F at 6,200 RPM and = 161 mph TAS @ 3,300' density altitude.
>
> Any of you that's using the stock exhaust manifold run into this?<= br> >
> Finn
>
>
> ---
> This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus
>
>
> --
> Homepage:=C2=A0 http://www.flyrotary.com/
> Archive and UnSub:=C2=A0 =C2=A0http:/= /mail.lancaironline.net:81/lists/flyrotary/List.html


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