Mailing List flyrotary@lancaironline.net Message #66994
From: Marc Wiese cardmarc@charter.net <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: oil supply turbo
Date: Tue, 10 Aug 2021 07:35:49 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Dave,
What turbo spec did you use and is it on a 13BRew type engine? Very interested in your set up.
M

Sent from my iPhone

On Aug 9, 2021, at 10:38 PM, David Leonard wdleonard@gmail.com <flyrotary@lancaironline.net> wrote:


Hi Neil, 
Great question.   I never got a lot of great info on how much oil flow I should be feeding to turbo.  I take the supply from the oil outlet on the top, spark plug side of the front side housing.  I run it through an electrically operated shut-off valve in case the turbo fails in flight.  I originally used a #30 hole in a plate of aluminum as a restrictor.  Later I decided to omit the restrictor and just rely on the shutoff valve and AN-4 plumbing to provide enough restriction.  

I have no idea if my system is correct, and I do get quite a bit of oil seepage and mist coming from the area of the turbo, but at least the most recent turbo has about 700 hrs on it.

Dave Leonard

On Sat, Aug 7, 2021 at 3:39 PM 12348ung@gmail.com <flyrotary@lancaironline.net> wrote:

Dave,

            Oil supply for turbo.  Just where did you source the turbo oil supply on the engine?   Did you use a restrictor or regulator for the supply.  A regulator is about $150 plus fittings and I am inclined to go with that bas the turbo requires 40 PSI, whereas I can range from 120 PSI cold to 80 PSI Hot.

Thoughts?

Neil.

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