----- Original Message -----
From: <Lehanover@aol.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, December 03, 2004 3:01 PM
Subject: [FlyRotary] Re: New Muffler Design


> In a message dated 12/3/2004 1:44:08 PM Central Standard Time,
keltro@att.net
> writes:
>
> << I have a 6 port rotary engine and was wondering if the 1988 exhaust
> manifold that Paul was using would fit my engine.
>  Do you or anyone else know if they are compatible?
>  Thanks,
>  Jim Maher
>   >>
>
>
> I don't know. I make my own from thick wall tubing bends and the Racing
Beat
> flanges. It is very easy to do, and there is a need for a very custom
design
> anyway, not unlike an aircraft installation. I used some available tubing
that
> had an ID of just under 2". The wall is close to .145". I don't know what
it
> was but it worked out great.
> I had made a set from .120" wall and then wrapped them with heat tape.
They
> melted. So either use stainless for everything, or don't heat wrap the
carbon
> steel headers. That heat wrap sure cools things down. So stainless is the
> answer.
>
> Lynn E. Hanover
>
Sort of sounds like schedule 40 SS pipe.  I made my headers out of SS pipe
from RBWagner company.  You can get almost any angle bend and most diameters
fairly cheaply compared to most places.  It is a bit heavy but mine has
lasted over 346 hours so far.

Ed Anderson