Umm, John?

   Which type of antifreeze are you running, green or
red?

Dale R.

> From: "John Slade" <sladerj@bellsouth.net>
> Date: 2005/06/08 Wed PM 08:43:36 EDT
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Subject: [FlyRotary] Autotune
>
> Tracy, and anyone else who's running an autotune chip....
>
> Now I have my engine running I'm giving the autotune a whirl. I got the EGO
> sensor hot, tuned to track mode, switched to EC2 mode 9 and set the throttle
> for about 20 MAP. Something definitely seemed to be happening, but it was
> unclear exactly what. I worked through the MAP range up to about 30 trying
> to move from one bar to the next on the display, then hold still. How long
> do I need to hold each MAP setting? I found that below about 17 MAP the
> engine went into a surge routine so the MAP wouldn't stay still and I don't
> think the autotune had a chance to do its job. Should I richen it manually
> if this happens? After a few minutes of this I left the autotune on and did
> some high speed taxiing and a runup, then the temps got a bit high.
>
> On the next run of the engine, with autotune off, it seems smoother and the
> idle is fine at about 1100. It's consistent through the rpm range, and I'm
> getting a slightly higher static than I used to get. One strange thing - I
> notice a pink powder on the outside of the exhaust that accumulates over
> time. Anyone seen this?
>
> Any thoughts or hints on autotuning would be appreciated.
> John
>
>
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