Mailing List flyrotary@lancaironline.net Message #44993
From: Kelly Troyer <keltro@att.net>
Subject: 6 Port 13B Porting / was Looking for a rear counterweight
Date: Fri, 30 Jan 2009 15:35:19 +0000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Bill and Ed,
      I have street ported my 88 13B.......But only the primary ports (center housing).........It
is correct that you have to be careful not to cut into the EGR passages that are next to the
ports.............I used the "Mazdatrix" porting template...........I am including a link to their
how-to site explaining the porting process for the 6 port 13B.............I have no idea if the
trouble was worth the effort yet .............FWIW 
 
 
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold



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

Yes, I would no longer consider porting a six port myself, but back in 92 I knew a bit less about the rotary engine.  Besides, if the rebuilder had either talked me out of it OR had not charged me for it, the situation would have been a bit different. 

 

I personally prefer the turbo block for porting myself.  I used the Racing Beat Street port on my turbo block and it really woke it up.

 

By the way, did Jason get his situation sorted out?

 

 

Ed

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bill Eslick
Sent: Friday, January 30, 2009 12:06 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Looking for a rear counterweight

 

Ed,

I guess you have seen the Mazdatrix web site where they discourage the whole porting thing with a 6-port.  Just the opposite of what Lynn proposes. 

Bill

On Thu, Jan 29, 2009 at 8:29 PM, Ed Anderson <eanderson@carolina.rr.com> wrote:

That's interesting to hear, Bill.  My first engine was an 86 N/A that was suppose to have been street ported (I paid to have it done), but when I later tore it down, much to my surprise there had been no porting done.  So I ported the next engine myself – at least I got my money's worth {:>).

 

 

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