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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]
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’s default and haven’t 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 = 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 = 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
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