RCU Forums - View Single Post - Glo to Gas conversion: how to get it right fast !
Old 09-01-2022 | 02:05 AM
  #15  
1967brutus
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Originally Posted by Billy603
Bert,

Since our gassers do heat quite a bit, would it be possible to ask Dave to add implement a temp factor in the solenoid curve, along with pressure and alt ?

Best regards
The engine temperature is barely of influence on the required mixture strength. When stone cold, it needs to be a bit richer, but that condition lasts only 10 or 15 seconds.
I have experimented quite a bit, but never been able to find a fixed correlation between engine temperature and mixture requirement.

What I have done, and which works "more or less, half of the time" is program 2 or 3 curves that are richer than standard (especially at the lower throttle regions) and I can activate those curves with a switch. I use them ONLY for cold starts, and I am not impressed with how well that functions, but for some engines it helps, other engines it appears to have zero positive effect.
I would not waste time on that.
What might be a good idea, is to set a full rich curve (100% valve opening) that activates at (for example) 135~140 deg CHT or something like that. It might protect the engine from overheating by letting it run rich for a few seconds.