X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "Tracy rwstracy@gmail.com" Received: from mail-lf1-f41.google.com ([209.85.167.41] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1065423 for flyrotary@lancaironline.net; Thu, 24 Dec 2020 11:50:50 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.167.41; envelope-from=rwstracy@gmail.com Received: by mail-lf1-f41.google.com with SMTP id x20so5754257lfe.12 for ; Thu, 24 Dec 2020 08:50:51 -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=uqCPkQ9WBGMMSu7kQXl25gLRQF6RXtNd7MdccVBDezs=; b=EYLguo2jblMpSEWkIo/OSzSVaKuF55SseVfVPLS+vNCNJWXuoFf+Fsa0SOryLWaquR cBQim+1W+Yj/4mz+N98j0t7gLNURUrsRqyVbvTeP41GqxB3+HwUGlAuempqGIWSOJovK hdpUY5Mz3l1azp3ZQb7ua7zFOpqsqXLuJ667EoITA3ZI0vXzRHk2i3OlA6JRxa/nOi0U mLclCLTHmD4q2bGyGYqxvoW8e9Qqnp8DgOlsnnMLjX/HNtgksmSx4QTybir8ijsmsrD1 6Ck6ayHuHBhNwoBC62cgXbVTTzEVk/uMgoN55KA0pY9J3FrXeE88nBgvhN/IH6K4OzHt yynQ== 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=uqCPkQ9WBGMMSu7kQXl25gLRQF6RXtNd7MdccVBDezs=; b=OdLvBJCLaIaP/qAsj6xGOdzsgyw0YMtCbfiTJc3/uhnNk7pZX8980J46SVgyCt6dHv egZ6XIvfcC+/et6VWQqn7BbWJwcX+0UYjdbqyM5HgPnrIY7S4LpRzivbR/C2DZGg/atH EG3j5zfJPWsRpUv3w1FsulqMvsbyx6AA+mj1lZemCDcMRd5eCcSWiZgd5KMCp+BSabF4 JyfYSR37sZQuMWPE7H659WCB4y3kFdjjT4WIfB6p+MxC2mE33WNTCZWZxXkStKyj9DdQ 8GW4ZdLD4DOGqezS9HfdTfYAxMTFibRjmhHBvZIW446kj45wrLiaHVdD6FSdusgaP8D9 K8eQ== X-Gm-Message-State: AOAM530xH55aGmMnGcOd0Z/zZlxOrLeqAupMDTIlZopKHP/5NVffP/v+ NwkvVhUd+wIdBUc1AarWLb6jn84+OTIQHIQ7+ealK6gKTnc= X-Google-Smtp-Source: ABdhPJy+1Jx4g0hR5KjQ7T2/+/Ik77dntmeZyvND7dVQ3MKnp9sRU7RaAeqHyqzCE4VHbGzmmC2CfjfGgm0//qf2sEQ= X-Received: by 2002:ac2:446d:: with SMTP id y13mr9484480lfl.615.1608828632103; Thu, 24 Dec 2020 08:50:32 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Thu, 24 Dec 2020 11:50:20 -0500 Message-ID: Subject: Re: [FlyRotary] Re: Tuning To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="0000000000001f00f405b7389bf0" --0000000000001f00f405b7389bf0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable At very low throttle settings (idle), the timing can be as much as 35 - 36 deg BTDC. At Full throttle it should be ~24 deg BTDC or very close to that. Tracy On Tue, Dec 22, 2020 at 6:31 PM David Leonard wdleonard@gmail.com < flyrotary@lancaironline.net> wrote: > 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 g= et > 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 cycl= e >> 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 bump= ed >> 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-= 18 >> range, but that is for a car. Little different with a prop on 100% of th= e >> time. >> >> >> >> Neil =3D That is a nice idle. I forget, are you P-Port? What is your tim= ing >> 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 = 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 timin= g >> 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 t= o >> 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 >> >> --0000000000001f00f405b7389bf0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
At very low throttle settings=C2=A0(idle), the timing can = be as much as 35 - 36 deg BTDC.
At Full throttle it should be ~24 deg B= TDC or very close to that.

Tracy

On Tue, Dec = 22, 2020 at 6:31 PM David Leonard wd= leonard@gmail.com <fl= yrotary@lancaironline.net> wrote:
Steve,

Tracy&#= 39;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 indeed it should not.=C2=A0 Its just where the EC2 shoul= d get an approximate initial signal, leaving it time to calculate and actua= lly send the signal to fire.=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 (variable) when using the timing light.

<= /div>
Dave Leonard

On Tue, Oct 20, 2020 at 11:44 AM Pam & Da= ve Williams padaju= te@idcnet.com <flyrotary@lancaironline.net> wrote:

Hello,

<= span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73= ,125)">=C2=A0

35 deg= rees 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.

=C2=A0

Thanks,

= Dave Williams

=C2=A0

From: Rotary motors in aircraft [mailto= :flyrotary= @lancaironline.net]
Sent: Tuesday, October 20, 2020 9:38 AM<= br>To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Tuning

=C2=A0

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

Jeff =3D I m= eant prop rpm. Using Neil's PSRU, which is 3.17. I just bumped up my id= le to around 800prop (2500engine). I forgot to add, I am P-Port which cause= s a need for higher idle.=C2=A0

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

=C2=A0

Ne= il =3D That is a nice idle. I forget, are you P-Port? What is your timing a= t?

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

- Matt B= oiteau

=C2=A0

=C2=A0<= u>

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

Hi there Matt a= nd 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 de= fault and haven=E2=80=99t changed it but was wanting to do some experimenti= ng.
I take it that the timing setting in the EC2/3 will vary the whole t= iming curve over the rpm/load envelope.

Cheers

Steve IzettRenesis 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@lancair= online.net> wrote:
>
> What AFR and timing are people r= unning for idle, taxi, takeoff, climb, cruise, descent?
>
> i= dle =3D 11afr, 20 timing
> I seem to have to be around 11afr for it t= o stay alive. Still trying to get it to idle around 600rpm, maybe bump it u= p to 700rpm to be smoother without dieing and shaking apart.
>
&= gt; taxi / takeoff / climb =3D 13.2afr, 28 timing
>
> cruise -= not sure aft, 28 timing
>
> decent - not sure aft, 32 timing<= br>> Not sure what the plane likes. I tried 14afr, but the MAP really ge= t's low and engine shakes. Guessing it should be more rich?
> > I attached the timing table and split rotary table (second email). No= t sure how to tune timing, I just want safe values for now.
>
>= ;
> - Matt Boiteau
> --
> Homepage:=C2=A0 http://www.flyrotary.com/
= > Archive and UnSub:=C2=A0 =C2=A0http://mail.lancaironline= .net:81/lists/flyrotary/List.html
> <split.JPG>--
> H= omepage:=C2=A0 http= ://www.flyrotary.com/
> Archive and UnSub:=C2=A0 =C2=A0http://mail.lancaironline.net:81/lists/flyrotary/List.html

<= br>--
Homepage:=C2=A0 http://www.flyrotary.com/
Archive and UnSub:=C2=A0 =C2=A0http://mail.lancaironline.net:81/lists/flyrotary/List.html<= /u>

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