We have the p-port RX8 engine running at Mazdatrix with the welded in SS
    intake runner tube. No dyno runs yet. Hopefully next week.
    Thankfully no water leaks around the p-port tubes. The tubes are also
    bonded in with JB Weld.

    I never thought this would work. Namely welding the stainless tubes
    directly
    to the RX8 rotor housing steel liner but it is working far far
    better than
    I expected. It is also far easier to do than I expected. A good welder
    can do it in 15 minutes.

    Depending on how much  we are down on power due to the side exhaust
    ports
    we might try building building an RX8 motor with p-port exhaust
    using the
    same welding techniques.
    --
    Paul Lamar ...No rotor no motor.

Paul,
That's great news.  Keep us posted on how it does on the dyno.  As you
are aware, I did this on a scrap housing, using 4130 tube (scrap I had
on hand) and it turned out great, IMHO.  And yes, welding it in place
was a piece of cake.

I recently picked up another 3-rotor that I am considering converting to
p-port.  If the weld-in tube works out, I will be tearing it down to do
the conversion.  I'm mainly concerned with the chrome surface peeling or
lifting.  Are they planning to tear it down or check it with a bore
scope after the dyno runs?

Mark Steitle.


So far no flaking.

I just went to the dentist and saw a small camera with an LED on the
end of a handle. A cable coming out had a USB connector on it. It was Made
by Schick I think. Ideal for taking inspection pictures inside a mouth or a p-port :)
http://www.schicktech.com/items.php?catid=402


I am going to keep the p-port RX8 engine for awhile and use it to develop
the mechanical fuel injection. The major parts for the MFI are machined.


Paul Lamar

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