---------- 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.