Thanks to Murry for finding this.

 It looks like we can just use the Ford splined part to mount the SGF
 damper and an .090" thick 4130 plate to hold the ring gear. This is
 easy to make with nothing more than a lathe and easy try.

 Paul Lamar


  Looks like the driveshaft coupling I mentioned once. How well will it
  dissipate the heat?

  Dale Davies

  Good question. On second thought we are in this for the long haul.
  It might be a mistake to depend on just one part like the SGF that
  might disappear.

  Probably better to build our own. Another advantage to that is we
  can tailor the durometer of the rubber bushings to our needs.

  Paul Lamar

  Hi, they are used in high volume production cars: Mercedes, Corvettes,
  BMWs, etc. also sold for marine use.


  Murry I Rozansky

 There are many sizes. I don't think they all use the 300 ft pound
 version.

 Paul Lamar

 I have info on the effect of the
SGF coupling on the Porsche aircraft engine if anyone is interested.
Similar torque, rpm and  firing freq as a two rotor.  I have a Mercedes SGF
and the part numbers do not mach the SFG chart.  Matching dimensions may
identify oem units.  Since they are normally used behind the cars gearbox
and see first gear torque, a unit from a pretty small engined car would be
likely the right size.  Finding a retail source other than car parts
departments might be a challenge.  I'll do a little searching.

Murry

I would like to see the info on the Porsche AC engine application.

I did a scale layout for the 300 foot pound version and the adapter to the
e-shaft looks like swiss cheese :) The bolt circles are off by only a fraction
of an inch. Here it is. The blue thing is the SGF coupling.

The torque is transmitted by three 12 mm bolts into the coupling and
another three 12 mm bolts out of the coupling. The six bolts holding
the flex plate are 10 mm.

Of course the flex plate holding the ring gear gets sandwiched
in here some place. Cost will be a major factor as will availability.


Paul Lamar