---------- Forwarded message ----------
From: Mark Steitle <msdstx@gmail.com>
Date: Tue, Jun 23, 2015 at 8:08 PM
Subject: Re: [FlyRotary] PERIPHERAL PORT INFO (Mark Steitle)
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Kelly,

Yes, I used 2" o.d. SS pipe for the PP intakes.  I think the TB's were originally 46mm, but had been opened up to 48's (with 48mm butterfly's of course).  I sealed the water passages with Grey RTV and have not had any problems with it.  I sealed the old side intake ports with Devcon epoxy and it is holding up just fine.  Attached are some pictures of my new PP intake.  Note that there are reducers on the intake side of the TB's.  That's because the TB's have a bell-mouth on the inlets.  My 2" aluminum intake runners go down inside the bell-mouth and essentially make a straight through intake runner.  Some day I hope to take them off, machine a step in the bell-mouth and epoxy the 2" runners in place.  I tried it with a step up to the larger intake runner and it didn't perform well at all (duh!).  I'm sending some pictures so that maybe some of this will start to make sense. 

Mark 

On Tue, Jun 23, 2015 at 2:23 PM, Kelly Troyer <flyrotary@lancaironline.net> wrote:

Mark,

   Glad you mentioned your use of the individual throttle body's as I had forgotten that you replaced the slide throttle.......I presume that you used the two inch OD stainless intake tubes as called out by Paul Lamar ?...........The 48 mm TB's are an almost perfect match for the intake tube ID.........Did you use any "Devco" sealant in the water passage around the intake tubes in addition to the red gasket sealant under the plates ?.........Also did you have any problem with TIG weld "Spatter" getting on the chrome surface of the rotor hsg and causing any damage ?.........

   I have one of "MISTRAL's" mount plates which bolts up to a Lyc "dynafocal" mount ring and solves the thorny Rotary Engine mount problem and will allow me to switch engines (hopefully) at some point........I am building a somewhat hybrid version of the 13BREW with RB alum rear and center hsgs (expensive 28 lb weight savings) ..........I am retaining the iron front hsg (rear in my a/c) as the "MISTRAL" plate bolts up to it with several 6 mm bolts and I was not fond of the idea of  my entire engine hanging on these bolts into aluminum threads.........I also have a TO4E Turbo on the bench just in case I get this done in this lifetime........<:)

P.S. Do you happen to have a photo of your throttle body installation ?

Thanks Again,

Kelly Troyer  

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