Paul, my tubo experienced the same after a period of time and after I did
some work on the air box. It drove me nuts trying to figure it out. Turns
out I some how got the sensor that is mounted on the port carb that monitors
the position of the throttle out of calibration. So the computer didn'
"think" that the carb was at full open and wouldn't provide the boost. That
is why I believe your not seeing 38- 40. To fix you must get the Toggle and
software from Europa or Rotax and recalibrate the sensor. And no you don't
manually adjust the sensor.You plug the toggle into a laptop and the turbo
computer and use the software to readjust the sensor. Once I did this 5
minute operation my boost was back! Very neat fix. At the same time you can
see exactly where all your % of throttle points are and mark them. Hope this
works for you. Don't forget to watch your RPM after fix because you are
surely at to fine a pitch.
Jerry Rehn N645XS
----- Original Message -----
From: "Paul McAllister" <paul.mcallister@qia.net>
Subject: Europa-List: Not enough turbo boost
<paul.mcallister@qia.net>
>
> Hi All,
>
> I adjusted my propeller pitch today so I could get 5700 RPM for take off.
The Airmaster propeller now seems to be working as it should, 5100 RPM in
the cruise setting, 5300 in the Climb and 5700 in the take off setting.
>
> The problem is that the maximum boost I am seeing is 34" at 5700 RPM, I
would have expected to see 38~40 inches. Does anyone have and ideas why I
am not seeing full boost under a static run up. I was a cool day, around 50
f so I do not think it would be an air box over temperature issue.
>
> Paul
>
>
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