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On 05/15/2011 09:36 AM, Mark Steitle wrote:
Congrats Ernest. If you're like me, it will take a little practice before you have the starting technique down. It will vary with OAT and whether it is a hot start or a cold start. On my setup and when the OAT is low and doing an initial start, I typically use 2-3 primer shots with the mixture set to full-rich. If it starts and dies, I'll give it another 1-2 primer shots. If I'm doing a cold start, but weather is warmer, I'll use 1-2 primer shots but only go to about 3 o'clock on the mixture. On a hot start, I'll leave the mixture alone and maybe give it only 1 primer shot. It takes a little practice, but not nearly as difficult as doing a hot-start on a Lycoming. Of course, this assumes the EC-2 is tuned properly and injectors are working like they should.
Loved the YouTube video. Keep us up on future runs.
Mark
I'm not using the EC-2, Mark. The MegaSquirt takes a measurement of the temperature, and uses that to pull an enrichment value from a programmable look-up table. It's exactly what you're doing, just under computer control.
I cut 10* off the advance, and set the "required fuel" parameter to correspond to the 450cc/min injectors I have (instead of the 550cc/min I don't have), and gave it another go today. It fired right up and reved up to 4,000RPM, where I have the rev limiter set. It would run for several seconds and then die. I did it repeatedly. Enough to get the muffler uncomfortably hot to the touch. I have the data logs, so I'll be able to get a handle on what the engine wants and move to a decent idle in short order.
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