From: "Pam & Dave Williams padajute@idcnet.com" <flyrotary@lancaironline.net>
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To: "'Rotary motors in aircraft'" <flyrotary@lancaironline.net>
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Subject: RE: [FlyRotary] Re: Tuning
Date: Mon, 19 Oct 2020 17:48:48 -0500
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Hello,

My 13b and EC2 is set at 35 degrees before TDC all the time. To set =
timing, move to max power (MPH) at proper mixture. Beware, retarded =
ignition timing increases exhaust temp. My idle is 1500 RPM.

Thanks
Dave Williams

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20
Sent: Sunday, October 18, 2020 11:11 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Tuning

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 =
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:
>=20
> Split table.
>=20
> - Matt Boiteau
>=20
>=20
> On Sun, Oct 18, 2020 at 10:17 PM Matt Boiteau mattboiteau@gmail.com =
<flyrotary@lancaironline.net> wrote:
>=20
> What AFR and timing are people running for idle, taxi, takeoff, climb, =
cruise, descent?=20
>=20
> 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.=20
>=20
> taxi / takeoff / climb =3D 13.2afr, 28 timing
>=20
> cruise - not sure aft, 28 timing
>=20
> 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?
>=20
> I attached the timing table and split rotary table (second email). Not =
sure how to tune timing, I just want safe values for now.
>=20
>=20
> - Matt Boiteau
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