I agree with you on the Russell manifold and I am doing further work
on it.
Hopefully I can get the plenum box straight up and down. Hang on
more
to come.

BTW To calculate the center line length of a 3 inch center line
radius bend
multiply the angle by .0524. For an example a 45 degree bend center
line
length would be 2.356 inches long.

BTW jerry cut down the length of the TB's as every little bit helps.
You don't need the hose barbs on the the prototype since the
manifold
is under vacuum almost all of the time. All you need is 5/8 of an
inch
hose barb.

Paul Lamar

This is it. Uses a 6.5 by 4 by 4 Zero box with alternator flapper.

Bends 45, 180, 90, degree front tube.
Bends 20, 90 degree  back tube.

Move the starter up as far as possible.

Adjust the length by moving the whole works closer or further
from the engine. You can also adjust the length by moving the
plenum forward. Moving it aft is not possible.

The neck bone is connected to the back bone and the back bone is
connected
to the hip bone etc., etc., etc., so don't make any other changes.

Everything fits under the stock cowl.

Current length is about 20 inches.

Paul Lamar

I went to the Zero site but could not locate the boxes you are talking
about.  Why are we using these boxes?  I must have missed a critical
explanation.  Do they come with the 3 inch ports and flapper valve?
Jerry

Make up a company name. Tell them you need several hundred a year
and get them to send you a catalog. If they won't I can scan some
of the pertinent pages. You already have a few.

No three inch ports but they do have a nice bolt on lid that can save a
lot of detail work on your part and provide internal access. Also saves
welding 4 to 8 seams. Also provides a nice 1/2 inch radius all around.
The
cosmetics of that are worth it alone. It just looks professionally
done.
Very very important if we are ever going to gain wide spread
acceptance for
the rotary.

Paul Lamar

All that right side space, should be good for something.   Could
we stick the oil cooler over there and decrease the foot print under the
engine.  Jerry

Sure. 

Paul Lamar
 
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