Mailing List flyrotary@lancaironline.net Message #11934
From: Al Gietzen <ALVentures@cox.net>
Subject: RE: [FlyRotary] Re: MAP pulses (20B)
Date: Mon, 4 Oct 2004 22:40:58 -0700
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

 

Subject: [FlyRotary] Re: MAP pulses (20B)

 

One of the things I concluded fooling around with the MAP filtering was that it seemed to need about 3 cu. in. of volume (line plus filter, or whatever) to act as an effective “spring”.  Have you estimated how much volume you have?

 

I never tried to figure out the volume of the tubing, partly because I can't actually remember how it connects behind the firewall.  I have two lines running back.  Originally, one went from one port on the TWM to the A controller and fuel pressure regulator.  The second went from the other port on the TWM to the B controller

 

I also had two lines; one to each of the two controllers.  Now one of those is the line back to the FP regulator, after the filter.

 

On second thought, keep up the good work, so I won't have to do any of this :-) 

 

Thanks; but “sorry”.  I’ve done all I’m going to do on the MAP filtering.  I’ll be happy to learn from your transducer traces.

 

Al (I took my chain saw out and did some trimming.  Now my depression is matched by sore muscles)

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