> Paul,
     >
     > What are those little ports in the rotor housing on the RX8
    engine? They
     > look like small P-ports, no?
     >
     > It appears they go all the way through to the inside -- you can
    see that
     > some material is hogged out from the housing.
     >
     > I got these pictures from an article I found about the Renesis
    engine:
     >
     > http://rotaryengineillustrated.com/renesis.php
     >
     >
     >
     > Regards,
     >
     > Gordon.
     >
     > They don't go all the way through.
     >
     > I believe that is high pressure air injection into the exhaust
    manifold.
     > Perhaps for cooling purposes or perhaps to light off the cat sooner
     > when the engine is cold.
     >
     > Paul Lamar ...No rotor no motor.

    Paul,

    Look on the upper left side of the second picture. It does look like a
    1.5" hole in the inside wall. Perhaps someone was playing with the
    housing?



    Doug Fir

    Optical illusion.

    -----------------------------------------
    Perhaps.

    On a second look at the block SV it looks like some one added a
    small p-port
    to a six port RX8 engine using the intake manifold water heating holes.
    No mention is made of this on the web site.

    Richard Sohn reports there is no value to keeping the side ports once
    a p-port is installed.

    The third picture is of a real six port RX8 engine. You can see the two
    side ports in an end housing.


    --
    Paul and Doug,,

    So the first picture shows a rotor housing that's been modified? You
    can clearly see that material has been removed from the inside
    surface of the  housing -- the surface that the apex seal rides on.

    We can assume then that a stock RX8 does not have this material
    removed? The surface will simply be unbroken?

    I am wondering because this removed material would seem to be a
    hindrance to installing a p-port.

    Regards,

    Gordon.

There is no material removed. The same rotor housings become replacement housings
for 13B's by machining out the exhaust port.


Paul Lamar ...No rotor no motor.

The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.