X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "David Leonard wdleonard@gmail.com" Received: from mail-ot1-f53.google.com ([209.85.210.53] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1061319 for flyrotary@lancaironline.net; Tue, 22 Dec 2020 18:31:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.53; envelope-from=wdleonard@gmail.com Received: by mail-ot1-f53.google.com with SMTP id 11so13470354oty.9 for ; Tue, 22 Dec 2020 15:31:29 -0800 (PST) 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=v0BU4NuIvb/qhJpOhb7IJ+Tg2yf3jNnCEuQBDsj9oFw=; b=FKbv21qoIAlJ9ZR8LO5lkmH/FCy39AwxfGzBaVsaFT6roV+JKuJr3nZcFTS41AR17U wACOaPaR/NzU5WIUxfQc2cZOZlUx+d8BV00UMqeXY2yd2LWcywGpZLcgD2Ny3g70l6u9 HwRPYJN71GjcBUrTbL3AeAJmpCaRroIgsnxJmOJ6SGhvIJho5bwDwTnENsBcBQmCUkYu 47FbLVMllCDzfjCsHwPPrH9pcnM2fWD7kfvByw/pRfxGgX1WB/qmm4O4qdMZQ6aaZzUb 021xTKxLmdmHusdFU/KGSXh6eZD0q9rp+onCi/FNPUoE3YrnjsGE0aY/tYw0j3x2EahK eeUw== 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=v0BU4NuIvb/qhJpOhb7IJ+Tg2yf3jNnCEuQBDsj9oFw=; b=VbufWRzUeqC0QEXbF8kWLsOuqcgJhv2wRl2PM/wWKXlJVO5zx0pDxG/4HLO94DBxOv Ceazymo3jM62yAPj/V38XmDUwk2GSmLm4C/T1Kz48shZfrVqu8oll1FHJvYQDT9QTF2x gs0hT8cdsR6l2xbb2hXWsvLT4YhkkKZGWwdGoc4NlJWvOVqdzcgZG9V1THMPbnmFUP+V txjUTqeTjv155zjjKCo7KYVDu+ihpcTmlySfnTS+6YgTKBSxgadyuNe69FbXJNz3rn05 v0HHcbYFKVuREqWPC3M5yCSJZmx2CNVzOFBrRdwDbcsG9qRVYokkIDVV2Ql4qdTDo/8D EUVA== X-Gm-Message-State: AOAM531ss6N4On48AiQM6PgF1E7t/QGxCvcnvNxl+AzdZhSxCpgipnSM RPYVUeE0hs4iiZ/acGZK/FLT5H5n88leB1vCT5XcNtaRVeE= X-Google-Smtp-Source: ABdhPJzwnuz8k5QTvUdUZE3Zg1iYq7TlWN2TvCCoTvLlPI9T+1dal7AC7we2gsBcL8gEhzVcxyJCq4R6rr57ZzN6ZBk= X-Received: by 2002:a9d:6a1:: with SMTP id 30mr17428405otx.242.1608679871756; Tue, 22 Dec 2020 15:31:11 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Tue, 22 Dec 2020 15:31:00 -0800 Message-ID: Subject: Re: [FlyRotary] Re: Tuning To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000503b3505b715f82c" --000000000000503b3505b715f82c Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Steve, Tracy's manual uses 35 BTDC at the place where the hall sensor matches up with the trigger in the CAS. This does not mean that the spark will fire at this point, and indeed it should not. Its just where the EC2 should get an approximate initial signal, leaving it time to calculate and actually send the signal to fire. If your timing light is showing 35 BTDC, then you are too far advanced. Actual advance should be closer to 20-25 deg (variable) when using the timing light. Dave Leonard On Tue, Oct 20, 2020 at 11:44 AM Pam & Dave Williams padajute@idcnet.com < flyrotary@lancaironline.net> wrote: > Hello, > > > > 35 degrees BTDC all the time verified via timing light. Info from Tracy= =E2=80=99s > manual and tested by me for most power in flight. 100 LL gas with 2 cycle > oil @ 1 oz. per gallon. 6,300 RPM stock 13b. > > > > Thanks, > > Dave Williams > > > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] > *Sent:* Tuesday, October 20, 2020 9:38 AM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: Tuning > > > > Steve =3D Using Megasquirt for ECU. How is your flight testing going? > > Jeff =3D I meant prop rpm. Using Neil's PSRU, which is 3.17. I just bumpe= d > up my idle to around 800prop (2500engine). I forgot to add, I am P-Port > which causes a need for higher idle. > > Lynn =3D Idle can be that high? Usually I see rotary idle around the 10-1= 8 > range, but that is for a car. Little different with a prop on 100% of the > time. > > > > Neil =3D That is a nice idle. I forget, are you P-Port? What is your timi= ng > at? > > Dave =3D 35 all time? Doesn't that seem really high for rotary. Pump gas? > Lynn was saying 24 degrees for 87 octane. > > - Matt Boiteau > > > > > > On Mon, Oct 19, 2020 at 12:11 AM Stephen Izett stephen.izett@gmail.com < > flyrotary@lancaironline.net> wrote: > > Hi there Matt and all > > What computer is controlling your fuel and spark Matt? > > Ive left the timing of the EC2 on the Renesis 4 port at Tracy=E2=80=99s d= efault > and haven=E2=80=99t changed it but was wanting to do some experimenting. > I take it that the timing setting in the EC2/3 will vary the whole timing > curve over the rpm/load envelope. > > Cheers > > Steve Izett > Renesis 4 port EC2 EM3 RD1-C > > > > > > On 19 Oct 2020, at 10:21 am, Matt Boiteau mattboiteau@gmail.com < > flyrotary@lancaironline.net> wrote: > > > > Split table. > > > > - Matt Boiteau > > > > > > On Sun, Oct 18, 2020 at 10:17 PM Matt Boiteau mattboiteau@gmail.com < > flyrotary@lancaironline.net> wrote: > > > > What AFR and timing are people running for idle, taxi, takeoff, climb, > cruise, descent? > > > > idle =3D 11afr, 20 timing > > I seem to have to be around 11afr for it to stay alive. Still trying to > get it to idle around 600rpm, maybe bump it up to 700rpm to be smoother > without dieing and shaking apart. > > > > taxi / takeoff / climb =3D 13.2afr, 28 timing > > > > cruise - not sure aft, 28 timing > > > > decent - not sure aft, 32 timing > > Not sure what the plane likes. I tried 14afr, but the MAP really get's > low and engine shakes. Guessing it should be more rich? > > > > I attached the timing table and split rotary table (second email). Not > sure how to tune timing, I just want safe values for now. > > > > > > - Matt Boiteau > > -- > > 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 > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > --000000000000503b3505b715f82c Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Steve,

Tracy's manual uses 35 BTDC = at the place where the hall sensor matches up with the trigger in the CAS.= =C2=A0 This does not mean that the spark will fire at this point, and indee= d it should not.=C2=A0 Its just where the EC2 should get an approximate ini= tial signal, leaving it time to calculate and actually send the signal to f= ire.=C2=A0 =C2=A0If your timing light is showing 35 BTDC, then you are too = far advanced.=C2=A0 =C2=A0Actual advance should be closer to 20-25 deg (var= iable) when using the timing light.

Dave Leonard

On Tue, Oct 20, 2020 at 11:44 AM Pam & Dave Williams padajute@idcnet.com <flyrotary@lanc= aironline.net> wrote:

Hello,=

=C2=A0

35 degrees BTDC all the time ver= ified via timing light. Info from Tracy=E2=80=99s manual and tested by me f= or most power in flight. 100 LL gas with 2 cycle oil @ 1 oz. per gallon. 6,= 300 RPM stock 13b.

<= u>=C2=A0

Thanks,=

Dave Williams

=C2=A0

<= p class=3D"MsoNormal">From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Tuesday, October 20, 2020 9:38 AM
To: Rotary motor= s in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] = Re: Tuning

=C2=A0<= /u>

Steve =3D Using Megasquirt for ECU. How = is your flight testing going?

Jeff =3D I meant prop rpm. Using Neil&= #39;s PSRU, which is 3.17. I just bumped up my idle to around 800prop (2500= engine). I forgot to add, I am P-Port which causes a need for higher idle.= =C2=A0

Lynn =3D Idle can be that high? Usually I see rotary idle aro= und the 10-18 range, but that is for a car. Little different with a prop on= 100% of the time.

=C2= =A0

Neil =3D That is a nice idl= e. I forget, are you P-Port? What is your timing at?

Dave =3D 35 all= time? Doesn't that seem really high for rotary. Pump gas? Lynn was say= ing 24 degrees for 87 octane.

<= div>

- Matt Boiteau

<= /div>

=C2=A0

=C2=A0

On Mon, Oct 19, 2020 at 12:11 AM Stephen Izett stephen.izett@gmail.com<= /a> <fl= yrotary@lancaironline.net> wrote:

Hi there Matt and all

What comput= er is controlling your fuel and spark Matt?

Ive left the timing of t= he EC2 on the Renesis 4 port at Tracy=E2=80=99s default and haven=E2=80=99t= changed it but was wanting to do some experimenting.
I take it that the= timing setting in the EC2/3 will vary the whole timing curve over the rpm/= load envelope.

Cheers

Steve Izett
Renesis 4 port EC2 EM3 R= D1-C




> On 19 Oct 2020, at 10:21 am, Matt Boiteau mattboiteau@gmail.co= m <= flyrotary@lancaironline.net> wrote:
>
> Split table.>
> - Matt Boiteau
>
>
> On Sun, Oct 18, 202= 0 at 10:17 PM Matt Boiteau mattboiteau@gmail.com <flyrotary@lancaironline.net> wrote:<= br>>
> What AFR and timing are people running for idle, taxi, tak= eoff, climb, cruise, descent?
>
> idle =3D 11afr, 20 timing> I seem to have to be around 11afr for it to stay alive. Still trying= to get it to idle around 600rpm, maybe bump it up to 700rpm to be smoother= without dieing and shaking apart.
>
> taxi / takeoff / climb= =3D 13.2afr, 28 timing
>
> cruise - not sure aft, 28 timing>
> decent - not sure aft, 32 timing
> Not sure what the = plane likes. I tried 14afr, but the MAP really get's low and engine sha= kes. Guessing it should be more rich?
>
> I attached the timin= g table and split rotary table (second email). Not sure how to tune timing,= I just want safe values for now.
>
>
> - Matt Boiteau<= br>> --
> Homepage:=C2=A0 http://www.flyrotary.com/
> Archive and UnSub:=C2= =A0 =C2=A0http://mail.lancaironline.net:81/lists/flyrotary/Li= st.html
> <split.JPG>--
> Homepage:=C2=A0 http://www.flyrotary.com/<= br>> Archive and UnSub:=C2=A0 =C2=A0http://mail.lancaironl= ine.net:81/lists/flyrotary/List.html


--
Homepage:=C2=A0 <= a href=3D"http://www.flyrotary.com/" target=3D"_blank">http://www.flyrotary= .com/
Archive and UnSub:=C2=A0 =C2=A0http://mail.lanca= ironline.net:81/lists/flyrotary/List.html

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