George, my advice from the very beginning still holds....Concentrate

first on

designing the Bellhousing in conjunction to your E4D PSRU,

Yep! Butch - am doing that, but at the same time I'm wondering what

changes

there is on Tracy's 2.85 compared to the 2.17 ratio. I know there has to

be

some holding mechanism on the splined outer (planetary) ring, but don't

know

if that will make a larger diameter planetary PSRU housing.
BTW you told me 6.5 " was Tracy's housing, so I milled 6.5" diameter on

the

face - now Paul mentioned 6.75".
I was going to go 6.75" to be on the safe side but didn't -so who's

right !?

and MAKE

PROVISIONS for the actual Bellhousing portion to be ADAPTED to

Tracy's

PSRU

or any other for that matter via means of a TRANSITION PLATE....This

is

the

best way that  I know of to make it cheaper, (by increasing the

production runs)

Were singing from the same sheet of music mate!

 and NEXT tackle the cats and dogs for further reductions, (Nitpick-it

to death)....This will yield your largest client market including

those

who

want to experiment themselves with their own PSRU designs.....Hell

right

now

there are a lot of us out here with a HEAVY Mazda transmission

Bellhousing on

the shelf, waiting on future transitioning to the future best PSRU

available

at that time, and I'm sure it's ditto DownUnder...No???

Yes Sir - that is so!!

So IF I'm understanding you correctly, is this what you're trying to

do

right

now??...........If so take your time on it, now that you know that

the

actual

practical doesn't take that long......But please include a side and

front

view sketch for us to critique effectively.

Will do, but can't do those 3D drawings of Paul's yet, however my son

can -

he's still at school.

You would be surprised on how many persons would adopt to it period,

by

sheer

ingenuity :)
                                                       Butch

Thanks Butch - haven't given up yet, but the machining and the costs of

the

machining are a real killer, to do the machining requires special jigs

(to

hold the sucker and make the process quicker) and will have to be done

in

volume to get  the price per piece down to a reasonable cost.
George (down under)

I am spending big bucks on an NC mill so consider sending the raw castings
to me and I will machine them over here.

Paul Lamar

Paul,
With bloody pleasure !!
Hey maybe Ed can do any stiffener welding required if we go down that path -
a real cottage industry.
If you don't have CAD facility a hardened template would also suffice for
accurately drilling holes.
George (down under)

I think it will take another ten years before the rotary engine in aircraft
situation can support a firewall forward real sustainable business.

Yes I know about the drill template situation as I had to build one to machine
the water pumps.  One of the main reasons I talked myself into buying
an NC mill.

Paul Lamar
 
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