Paul do you have a Dxf file for the p-port? I have a machine
shop here, that will CNC machine both rotor housings for $150.
Tony
Great price. $75 each. How can you go wrong?
I predict in the next ten years you can sell hundreds.
No DXF for the rotor housings. I'll send the dimensions
shortly. Basically there is a 1.875" diameter hole all
the way through and a 2 inch diameter counter bore down to the
steel liner that the intake tubes seat on.
I just sent you the first two slide throttle parts.
Here are two more.
The O rings grooves in the Teflon slide are optional.
You can add them later if you feel you need them.
I don't think they are necessary.
That sounds great. I appreciate it. I'm using ACAD 2000 and RHINO
Tony
Did you get the DXF zip files Tony? zip is the only practical
way of sending them but some ISP's filter out zips.
First you tig weld the 3/16th thick flanges to the short tubes
and then insert the short tubes into the bored rotor housings.
The tubes protrude through the flanges by the thickness
of the plate. In other words the ends of the short tubes
are flush with the inner surface of the back plate and align
everything. This is done to minimize leaks.
Place the rotor housings side by side and use one of the plates
to make sure the holes will line up when you assemble the engine.
Some of these pictures were not done that way. This is an
improved method. Also the flange hole patterns have been
revised to eliminate a few nuts and bolts by having some
of them do double duty so the pictures show old hole patterns.
Then pot the water passages around the tubes with JB Weld.
--
Paul Lamar ...No rotor no motor.
Paul,
What do think of putting two injectors per P-port just downstream of the
slide throttle between it and the housing?
DougFir
Probably work if you can find the room under the cowl. The water pump
intake neck is the clearance problem so you would need
to move the slide throttle out making the cowl wider.
That reminds me. I need to redesign the injector holder for
the more modern slim size injectors and get them closer together.
They are easy to make on a milling machines if you have a two
inch shell mill cutter and start with hex stock for the singles
or a rectangular block for the duals.
Paul Lamar ...No rotor no motor.
Paul,
Understood. My reasoning was by having the primaries close to the rotor
housing (downstream of the slide throttle) it might idle better.
Water pump will not be an issue as I plan to mount it remote. That is if
you ever remember to send it to me:)
DougFir
I never knew you still wanted it after I quoted 100 bucks :)
Send me your shipping instructions again. How you wanted it shipped
and to where.
I don't think it will idle better. The throttle response
will definitely be better. You need a good idle for a sea
plane. At 2000 engine RPM 700 prop RPM it will miss fire
every once in awhile. Say 10 times a minute a guess. Or once
ever few seconds.
Paul Lamar ...No rotor no motor.
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