Subject: Ian bell housings
From: Rotary Engine
Date: 2/7/2006, 4:39 AM
To: AA-me



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Have visited Jeff Dellow at Dellow Automotive. The only bell housing that
fits a rotary is about 200 deep and does not have a mating face of large
enough dimensions for the gearbox  to either sit on or mount from the
inside.

Castings are outsourced  the selection of foundry being based on cost at the
time. I feel that this lead is dead.

Colin Smith>

Have visited Jeff Dellow at Dellow Automotive. The only bell housing that
fits a rotary is about 200 deep and does not have a mating face of large
enough dimensions for the gearbox  to either sit on or mount from the
inside.

Castings are outsourced  the selection of foundry being based on cost at the
time. I feel that this lead is dead.

Colin Smith


Too bad. Thanks Colin. Looked to heavy anyway. I'll price a new
die cast RX8 auto tx bell housing.

Paul Lamar ...No rotor no motor.

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Do you have any idea what you are expecting to pay, there is a
company not far from me that does do castings, prototyping is
a bit dear having said that prototyping are one offs of course
but low volume small quantities are not too bad. What I will
need is an applicable design  to find out what it might cost.
I don't know is that helps at all. They definitely do alloy
including aviation grade castings


Regards David Gaze

I think people would pay around $300 US.
What say you people? What would you pay for a bell housing
to fit Tracy's PSRU?

Since patterns can be up to $5000 US this is a hard target
for 10 or 12 bell housings.

And then you will have the problem of weight as you will be
lucky to get the wall of a sand casting down to less than about
6 mm. The best we can do in here the states is about 3.6 mm.
If you have somebody that can do 3.6 mm I am all ears.
George investigated it up where he is (Brisban) and it was about 5 mm
as I recall. With a 3.6 mm wall the pattern must be super accurate.
And even then a certain percentage of casting are scrap.

There is no beating a high pressure  diecasting as the wall is
typically 3 mm or less. the tooling on the other hand is
$100,000 US.

Paul Lamar ...No rotor no motor.

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