Subject: RX 7 website
From: Rotary Engine
Date: 9/24/2006, 11:09 AM
To: AA-me


  > None of Tony's polished  housing picts came through for me. Could you send
  > again?  BTW I just read about 28 pages of posts about building P-ports on
  > the RX-7 site along with pictures and comments.  I suggest you refer people
  > to read it as it will save you and them countless hours of speculating about
  > the what ifs:)
  >
  >
  > DougFir
  > -------------------------------------------------------------------------------------------------
  >
  > Doug,
  >
  > Which rx7 site had the p-port info.
  >
  > Thanks,Geir
  >
  > This is what I got from Doug. Perhaps you can make sense
  > of it :)
  >
  > RX-7 Owners Club - Building Per


Try this:  http://tinyurl.com/mwncu

Doug's attachment is a web page.  You can open it in a browser by
renaming the attachment to something like rx7.html.  The tiny url above
is
http://www.rx7club.com/showthread.php?t=144200&highlight=Building+Peripheral+Port+housings
which goes to the same page on the web.

Bob W.


-- 
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
Custom Cables for your rotary installation -
http://www.roblinphoto.com/shop/


Doug,

That made for some very interesting reading. All the misc. chatter aside
, this was a great way to get up to speed on the big picture of the p-port.

I have missed our discussion as to the best procedure for side port
sealing. With some of the stories of side port epoxy failure I wonder if
it wouldn't be possible to incorporate a blank intake bolt flange to
seal side ports without the risk of epoxy mishaps. Who knows, perhaps it
could even partially support the p-port tubes

Geir

Apparently JB Weld is a relatively recent development in the P-port
world. Most p-port pictures I have seen do not use JB Weld.
Here are is a year or two old example from Racing Beat.

JB Weld is not just an epoxy. It is a composite. Frequently
composites are better than their components. Fiberglass
is a good example of course.

It has never been a problem with JB Weld as far as I know.
Due to the curve the JB Weld is mechanically locked in. Even if
they leak air a bit you will never notice it. Just clamp or bolt
a plate where the side port intake manifold would go and fill
with JB Weld. According to Jim Mederer You need a bit of depression
near the side housing  wear surface to even out the pressure
differences that might occur across the rotor.

BTW Doug, Emon Hurley of Hurley Engineering does not fool around.
Here is a p-port opening I saw when I was over at his place in
Coventry England. No data on the results let alone the
life of the apex seal :).

Paul Lamar ...No rotor no motor.

Ops wrong picture on the Racing Beat p-port.

BTW concrete with gravel is another example where the whole
is better than the parts.
-- 
Paul Lamar ...No rotor no motor.

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