----- Original Message -----
Sent: Friday, September 19, 2003 10:43
PM
Subject: [FlyRotary] Re: Turbomania
Hi Bill,
No, I have not. I have thought
about it on the ground, but always seem to forget in the air. I guess
part of it is that I think I have found good timing for power on takeoff and
climb and just don't want to mess with that. But, now that I think of it
I presume that I could mess with the timing on the "B" controller and leave
the "A" controller where it is, Hummmm.
I think I will check with Tracy to make certain screwing
with the timing on one processor won't screw it up on the other. I am
99% certain - buuuttttt want to be sure.
Ed Anderson
Yep, A & B controllers are 100% independent on
programming.
The proceedure I use in-flight is:
1. Establish normal cruise and get the plane
*perfectly* trimmed in zero turbulance air.
2. Lean engine for best economy. This is about
1525 - 1550 EGT on mine. This varies with altitude &
powersetting.
3. Put EC2 in mode 8 and advance timing 1 step (1.875
degrees) and note change in rpm (a digital tach w/ <= 10 rpm resolution is
a must).
4. If you got an increase at step 3, repeat until
there is no increase in rpm.
5. Retard the timing 1 step.
Factors to keep in mind. My cruise is typically at 17
- 18" MAP which is below the manifold pressure advance point (this
point is adjustable in Mode 6). The timing is advanced by 5.625
degrees more than nominal timing which is typically 20 - 23 deg BTDC at rpm
> 3600.
I think mine is advanced 1 or 2 steps from default
setting.
Tracy