Mailing List flyrotary@lancaironline.net Message #54703
From: Bobby J. Hughes <bhughes@qnsi.net>
Subject: RE: [FlyRotary] Re: DNA Mufflers No Longer Available
Date: Tue, 26 Apr 2011 08:19:09 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Bill,

 

I believe your looking at a different model.  I don’t think the full throttle collector has the spiral strips. The spiral strip models appear to be spot welded to the inner can without the “V” on the outer can.

 

Bobby


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bill Bradburry
Sent: Monday, April 25, 2011 9:07 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: DNA Mufflers No Longer Available

 

Hi Bobby,

 

The cutaway drawing I saw shows the “Vs” welded to two spiral strips that are then inserted into the muffler.  That is why I was wondering about the marks on the outside of the muffler.  The 4 inch inlet on a 4 inch diameter muffler would lead one to believe that you could weld the “Vs” up inside a pipe and produce a muffler.

 

How would one weld up inside the pipe anyway???

 

Bill B

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bobby J. Hughes
Sent: Monday, April 25, 2011 12:15 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: DNA Mufflers No Longer Available

 

Bill,

 

The “V” is actually stainless angle that’s welded across the muffler. The Full Throttle Collector does not have the vent tube hole.  http://www.dnamufflers.com/DNA/full_throttle.html    

Bobby

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bill Bradburry
Sent: Sunday, April 24, 2011 11:05 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: DNA Mufflers No Longer Available

 

I am trying to understand how the DNA muffler is made and how it might work.

 

In looking at the sales brochure they have, I do not see how the welding beads in the shape of a “V” get placed in a spiral around the muffler.  The cutaway view doesn’t show them at all.  Additionally, there is a hole about 1 inch in diameter at one end of the muffler.  Is this just a SS tube that goes thru the muffler and is attached on each outside skin?  It would partially block the outlet of the muffler it seems to me??

 

Would the gasses have to expand inside a larger volume than the exhaust pipe in order for it to work?  Could you just insert this spiral apparatus up inside an exhaust pipe and get a result?

 

Could someone who has one describe it?  It looks like it would be fairly easy to build if someone had a welding rig and knew how to use it??

 

Bill B

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of wrjjrs@aol.com
Sent: Sunday, April 24, 2011 12:11 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: DNA Mufflers No Longer Available

 

Does anybody know why they aren't going to sell them here anymore?
Bill Jepson

Sent via DROID on Verizon Wireless



-----Original message-----

From: Steve Thomas <glasair2@me.com>
To:
Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent:
Fri, Apr 22, 2011 13:38:10 GMT+00:00
Subject:
[FlyRotary] Re: DNA Mufflers No Longer Available

I just paid $100 Canadian ($105 US - can you believe this?).  The company still has a few left in stock.  If interested, my contact is Colleen Porter, colleen@tunedproducts.com .


Best Regards,

Steve Thomas

_______________________________________________________

 

On Apr 22, 2011, at 5:31 AM, Mark Steitle wrote:

 

Bill, 

 

Best I recall, the model I purchased was about $110.  It is built like a Sherman tank.  It takes a lick'n and keeps on tick'n.

 

Mark

On Thu, Apr 21, 2011 at 11:30 PM, wrjjrs@aol.com <wrjjrs@aol.com> wrote:

Mark, do you recall how much they were getting for them? I was considering making some in our sheet metal shop at work.
Bill Jepson

Sent via DROID on Verizon Wireless



-----Original message-----

From: Mark Steitle <msteitle@gmail.com>
To:
Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent:
Wed, Apr 20, 2011 16:51:51 GMT+00:00
Subject:
[FlyRotary] Re: DNA Mufflers No Longer Available

Steve,

 

You better grab the 3.5" unit while it is still available.  You can get a reducer from Burns Stainless.

 

Mark

On Wed, Apr 20, 2011 at 9:28 AM, Steve Thomas <glasair2@me.com> wrote:

Here is a response from the people who make the DNA mufflers.  Apparently they are discontinuing distribution of the muffler and it is no longer available in the USA, for all practical purposes.


Best Regards,

Steve Thomas

_______________________________________________________

 

Begin forwarded message:

 

From: "Colleen Porter" <colleen@tunedproducts.com>

Date: April 20, 2011 7:16:59 AM PDT

To: "'Steve Thomas'" <steve@stevet.net>

Subject: RE: Where to Find?

 

Hi Steve,

We don't offer the Full Throttle Muffler in a 2.5" inlet, the smallest is
3", but I only have 3.5" & 4" in stock.  You could use a reducer for the 3.5
to 2.5 but you would have to get that from a muffler shop.  You won't find
the mufflers in the US as we are not actively pursuing manufacturing or
distribution of these mufflers.  We are selling down the inventory that we
have, but we are not producing any mufflers at this time - the demand is
just not there.

Colleen

-----Original Message-----
From: Steve Thomas [mailto:steve@stevet.net]
Sent: Wednesday, April 20, 2011 8:11 AM
To: info@dnamufflers.com
Subject: Where to Find?

Is it possible to get a Full Throttle Muffler with a 2 1/2 inch
inlet/outlet?  If not, do you have a transition piece to move from 2 1/2
inch to 3 inch?  Also, I'm having a hard time finding much of a selection of
DNA mufflers at the locations listed on your dealer list.  I'm in the USA,
and would like to find an internet site that has a wide selection of your
products.  Thanks.


Best Regards,

Steve Thomas

____________________________________________________________________


 

 

 

 

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