Hello Paul,
I am finally going to get into a 13b and engineer for lightest
weight. Very interested to follow and (most likely)recreate or
purchase what George Grimes is doing. Only remaining question
will be the PSRU.  Real World Solutions or Power Sport type design?
I wish to purchase all the components you have been talking
about. ie pressure taps,bell mouths, injector bosses, and slide
throttle kit, etc.
Please let all of us know when ready and a package price.
Dan F

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Paul,  I am also planning  on using your slide throttle idea and loation
although it will be a custom configuration. I have he possibility of up to
four intake ports per rotor. the end housings are similar to the 6 port RX7
except that the port is 23 degrees up from horizontal similar to your
P-port. the devider between  the two ports is rotated and relocated to
reduce primary port size % of total port area,and reduce the amount of
unsupported side seal passing across the port opening and  the angl the seal
meets the the close off side of the port. The center housing is also set up
for two ports although they can be machined for different port timing. My
first build will be to mirror the side housing porting. The flow will be
less because there is still a 90 degree turn into the rotor housing unlike
the end housings which sweep in with a 30 degree turn. This is possible
because the flow doesn't need to be turned 90 degrees and can  enter at an
angle(look at the final 1/4 inch of the RX8 port entering the rotor chamber)

As usual I have wandered off my original subject the slide throttle. It is a
perfect solution for  dealing with eight intake ports for each two rotor
section and a total of 24 ports on the 6 rotor. I can have a full circle
opening on all ports at wot and shift the opening  point  on any combination
of ports. The slide plate  openings would be slot like with straight sides
between the two half-circle ends  which would be the runner diameter. the
slide travel would be a minimum of two port diameters. the end result would
be like a progressive linkage as used on multi-carburetor auto engines of he
1960 era.The slide throttle could allow testing with differently machined
slide openings to optimize the  air handling side of the intake charge.
Initially a throttle body set up with a mass airflow sensor could get it
running or even a carburetor for ground testing.


To update you on recent
progress. I finally got the water circulation for the cold side of the rotor
housing  figured out two days ago without the use of cores for the cast
parts. Looking at some rotor housings I noticed how the water is transferred
along depressions in the side housing contact area. I just did the same
thing in the same areas on the face of the side housing staying 1/8 inch in
from all the seal rings I also found oringswest.com and the sourse for the
large o-rings for everything with temp ratings up to 600 degrees. I used the
divide cad command to measure the o-ring paths to see what stock sizes match
up or require adjusting the o-ring locations. Yesteday I got the motor mount
ears drawen up on the fromt side housing.

The lycoming pattern was too narrow
to be outside of the accessory housing with enough room for the rubber
bushings, although the bolt locations were fine. Mounting on the front
housing as Phillip has done would work and I could use studs tapped through
into the cast iron front side housing but I have several fasteners not easy
to locate causing inteference in several places. The end result is added
weight just to accomodate  a lycoming  interface. And since there is no
manufactured mount to fit my T-rex airframe I opted for the reduced weight.

Yesterday I started on the waterpump housing and got the cycloidal shape and
front side with he pump mount integrated into the plug side of the front
accessory case. The backplate with the inlet and outlet will be easy once I
decide where to point the inlet connection. Next up is the centerhousing
with the water connections.It  is also two piece much in common with the end
housings except for the intake ports which are not finished and the division
of the  inlet versus outlet water areas.These three pieces and an interface
for an RX7 front accessory interface should finish all the cross sections.
Then it is just stack it all up into a solid model and see what it looks
like.


george-grimes

Send dwg, 3D's or pictures.

Hard to follow what you are doing.
Also forward quote and add new text at the bottom.
That way things are in chronological order.

Paul Lamar