Thanks Paul.  I asked Tracy about changing the gear

ratio a while

back,

and he said it would be a

completely different setup to do that.  So I was

supprised to see

the

reference to 2.85:1.

According to his web site, his ration is 2.176:1.  I'm

planning on

using

his unit, but would have

liked a little higher ratio. This new bell housing looks

very

interesting though.  I expect to

need the reduction unit in the next 4 -6 weeks, so will

have to

consider

upgrading later.

Bob White

http://www.bobwhite-abq.com

I think the casting can be designed for both with minor

machining

changes.

Paul Lamar

Just to clarify,  What I was saying is that the 2.176:1

drive cannot

be

retrofitted with the 2.85 : 1 gears  *after* the casting is

machined.

I

plan to use the same casting for both 2.176 and 2.85 drives.

 The

machining

will be different.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

I think Tracy is headed in the right direction.....He will

have a

"universal" product which will satisfy those wanting 2.17 OR

2.85 gear

ratios, and thanks to Paul Lamar's efforts, the casting concept

looks

great!

It looks a lot like a Ross redrive, which isn't a bad thing.

Watch the

orders pour in !  Paul Conner

Dan Ruggirello wrote:

Paul,
What is the status of the ultimate bell housing?

Dan

Its on hold. Tracy has some investment in NC machine tool programs
that
he is reluctant to have re written. Can't say I blame him too much.
He is
going to have to do it sooner or later as the RX8 engine redline is
9500 RPM
and people are going to start to wonder why they can only get 6500
RPM out of
their RX8 engine :)

Here is the 3D again for the new guys.

Paul Lamar

        Could the redrive be made for one ratio and a spacer or ring used
to adapt to the other ratio, Virg

Virgil N. Salisbury AMSOIL
WWW.LUBEDEALER.COM/SALISBURY

I think that could be done using the cartridge approach.

Paul Lamar
 
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