lml@lancaironline.net Mailing List Archive

hi there

starting with a Cessna 340 (turbo TSIO 520) i always use low boost from start to shut down. i have moved that thinking to the Lancair TSIO 550

after some experimenting my 4P starting method is,
COLD ENGINE
1. turn on the master,
2.throttle full forward
3. put high boost on and count to eight
4. hit starter
5. move throttle back about half way (adjustment may vary.
6. about five to ten seconds go to low boost
         and continue on my way

ANY RESTART
go to high boost
   and watch fuel flow
       start count of six when one pound or more is showing on fuel flow
then proceed with start
if i screw up on a hot day, i will pull the mixture and continue the start
(hot starts on hot days are more subjective as heat soak, vapor lock and condition of engine systems is
    an individual airplane matter)

peter

To: lml@lancaironline.net
Date: Wed, 4 Sep 2013 14:44:56 -0400
From: Shane@rbr3.com
Subject: [LML] low boost on take off

What is the best practice for use of low boost fuel pressure pump for the IV-P TSIO 550 E? Activate on take off or wait to a certain altitude? I have been flying into Colorado Springs elevation 6,187 with density altitudes over 8,000 this summer and wonder if I should activate the low boost pump while on the ground.

Shane Bangerter

89GG

IV-P

280 hrs