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From: "Bryan Winberry" <bryanwinberry@bellsouth.net>
To: "'Rotary motors in aircraft'" <flyrotary@lancaironline.net>
References: <list-3596774@logan.com>
Subject: RE: [FlyRotary] Re: Exhaust system wall thickness
Date: Sat, 25 Apr 2009 18:53:55 -0400
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In-Reply-To: <list-3596774@logan.com>

Chris,
I'm a little confused.  Did you weld it back together the way it was
originally?  Or did you modify it somehow?
I have this problem to solve as well for my Renesis.
Would like to see your pictures as well.
Bryan 

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of The Mallorys
Sent: Saturday, April 25, 2009 6:31 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Exhaust system wall thickness

Chris,

That is the approach I took for my Renesis.  I spent the time to cut away
the outer shell from the stock manifold, leaving only the inside pieces.
Then I welded the two pieces together.  None of my pictures show it very
well, so I'll have to take a new one if you need it.

Chris Mallory

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Bobby J. Hughes
Sent: Saturday, April 25, 2009 3:00 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Exhaust system wall thickness

Chris,

If I remember correctly you have a Renesis. If so, the stock manifold
can easily be cut down and used. It's a little heavy but you don't have
to worry about it holding up. I may try a lighter manifold in the
future. But for now it's one less thing to worry about during the first
100 hrs. The stock manifold can be had for under $100 but may take some
looking. It also has a good heat shield that can be partly used. At
least three folks on this list have taken this approach. 

Here's one on Ebay with no reserve and no bids.  
http://cgi.ebay.com/ebaymotors/RX8-Exhaust-Manifold-and-O2-sensor-No-Res
erve_W0QQitemZ230338894473QQcmdZViewItemQQimsxZ20090423?IMSfp=TL09042314
10006r30271


Bobby Hughes  

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Christopher Owens
Sent: Saturday, April 25, 2009 12:32 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Exhaust system wall thickness

Hi Al,

I agree, but don't have much experience with these kinds of metal and
how much they weigh.  I suspected that if I asked about the high side,
someone would reply that I didn't need that much and make a good
recommendation.  I do greatly appreciate the insight :-)

Best regards,
Chris


On Apr 25, 2009, at 12:49 AM, Al Gietzen wrote:

> with, and I found some notes about using SS handrail tubing, 
> approximately 0.12" in wall thickness.  If one were to build matching 
> muffler components to attach to those tubes, would 0.12" be sufficient

> thickness (presuming 304SS or similar)?  Thicker?  Thinner?
>
> Chris;
>
> You're building an airplane.  Weight matters.  .035 inconel is good.
>
> Al G
>
>
> --
> Homepage:  http://www.flyrotary.com/
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> flyrotary/List.html


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