flyrotary@lancaironline.net Mailing List Archive

None I know of, Kelly. The 409 alloy was supposedly developed for exhaust type situation where corrosion protection was the aim rather than shiny polished 304, 316 or 321. Mine have shown no deterioration but they have few hours on them. Tracy probably has more hours with one that any one - but, I don't know which one he has for certain, although I think I recall him saying he purchased the cheaper one meaning the 409.

----- Original Message -----

From: Kelly Troyer

To: Rotary motors in aircraft

Sent: Friday, November 09, 2007 10:30 AM

Subject: [FlyRotary] Re: Spin Tech

Ed,

Is there any consensus at this time as to which alloy (304 or 409) is the most

durable for our hot breathed 13B rotarys ??

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

-------------- Original message from "Ed Anderson" <eanderson@carolina.rr.com>: --------------

Wendell,

Here is the place I got mine for around $100 for the 409 ss. The 304 SS cost a bit more. You need to make certain you order the using the right part number as that determines the inlet/outlet diameter. The 12018400 is the - 2" T409 version

http://www.performance-curve.com/index.asp?PageAction=VIEWPROD&ProdID=621

There are many other sources, but this was the best price at the time I ordered, search the web, you may find a better deal.

Ed

----- Original Message -----

From: Wendell Voto

To: Rotary motors in aircraft

Sent: Thursday, November 08, 2007 12:33 PM

Subject: [FlyRotary] Re: Spin Tech

Where can you get the Hushpower or the Flowmaster mufflers?

Wendell