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Steve,
I’m running default timing or maybe 1 degree advanced. Early on I experimented with 1-2 degrees advance for many flight hours and did not detect any noticeable change in engine performance. I did push the engine to what I believe was detonation during a ground tuning session. I was tuning under boost (44” MP) , 7000 rpm with a wideband O2 on each runner and adjusting Mode 9 and Mode 4. With F/A balanced between each rotor and EGT’s under 1600F I was trying to see if increasing timing would lower EGT’s. F/A was in the 11’s. This was at the end of the session and the engine and supercharger were already hot. I think I had added 4-5 degrees advance with no noticeable EGT decrease when I encountered a mild bang or misfire. This condition was well above my 38” MP limit I sometimes use for takeoff. I’m curious about the dwell time setting difference between LS1 and LS2 coils. I switched to LS2 coils sometime back with no failures to date. I remember seeing an option setting in some of the code you or Finn posted. Internet research indicates LS2 coils require less dwell time than LS1. Possibly 0.5-1 ms less. Bobby Sent from my iPad
On Jul 5, 2019, at 12:58 AM, Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
Hi there Guys
Of the guys with Renesis engines using EC2/3 can you comment on your timing settings.
I’ve to date left the timing at the default setting figuring its set by the location of the CAS.
Not sure if the various coil options have different trigger timing latency.
Thanks
Steve Izett
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