One more data point.  The reported weight of the model 3030 is 5.5lbs. 

 

While browsing the Vertex Industries web site I noticed they have a 304ss Flowmaster style muffler for $53.01.  Might fit someone’s needs. 

See http://stores.channeladvisor.com/vertexnow/Mufflers/

 

Mark S.

 

 

Todd,

Well, their response was very quick.  Here is the reply to my question about using their muffler on a rotary. 

 

 

This is a great muffler for all performance cars and will work well on the rotary engine.  This item is not for sale over the internet, but we do have it in stock and are happy to help you over the telephone.  We accept visa, mastercard, or discover.    Please contact us at the number below and ask to speak to Tom Hauer in sales or if you prefer we can contact you if you send us your phone number.

 

Thank you for your interest in our products.

 

Adrienne

 

I’ll check on the specifics of their warranty.  Their website states the following about warranty/returns: 

 

<snip>

Returns

We absolutely guarantee your satisfaction! We are committed to selling only quality products and we will take care of you if you are not pleased for any reason.

We are happy to accept returns for an exchange, a merchandise credit, or a refund if you are not completely satisfied for all items in their original condition. If there is an error on our part, we will replace the goods at our expense.

Please contact us at sales@vertexnow.com within 30 days of purchase date to request a return authorization. Please be sure to note your First and Last name in your email and your order number. Also save all original tags, packaging, and paperwork in preparation for return.

WE APPRECIATE YOUR BUSINESS!

<snip>

 

Sounds like they will stand behind their product. 

 

Mark

 

 

Todd,

From the looks of it, I would be surprised if it is even 5 pounds.  You can get more info from what appears to the parent company’s web site at http://stores.channeladvisor.com/vertexnow/.  They also have flexible exhaust couplings, and many other items that could be useful to our efforts. 

 

I have contacted them just this morning about whether or not they recommend using it on a rotary.  Depending on their response, I may follow up with another inquiry concerning their lifetime warranty.  I’ll post their reply when received.    

 

Mark

 

 

Hi Mark;

    While I'm currently satisfied with the performance of my homemade "SpinTech" muffler, I'm very intrigued by this one. I could find no weights listed, but it looks like it shouldn't be more than ~7#. What I find most appealing about this muffler is the claimed "cooler" performance. It seems that they're implying an overall reduction in temps, due to less backpressure as well as a cooling effect within the muffler. As some of you may recall, I incorporated a muffler housing into the bottom of my fuselage to keep the muffler out of the airstream and out of the cowl, however while it doesn't get too hot, a reduction of this temp would be welcome.

    You should contact them for further details as I and I'm certain many others would be very interested.

 

Todd

 

---

 

It looks to be very streamlined, made of SS, lightweight, and has no packing. It sells for less than $200 (except for the 5” model).  This looks like this just might be what I’ve been looking for.  More info available at http://www.pickupspecialties.com/Aero_Turbine/aeroturbine_mufflers.htm.  Comments???

 

Mark S.

(I have no affiliation with this company)