> Hi Paul,
    >
    > Our cost for the RX8 rear counterweight, N3Z2-11-52X, Our part #
    > 11458 is $109.70.
    >
    > It would certainly be possible to machine a "drive disc" with a ring
    > gear mounted. In modest quantities, it might come out a bit cheaper
    > than $380.00 with the counterweight and ring gear, but with what bolt
    > circle? What disc stiffness is necessary?
    >
    > Jim Mederer
    >
    > Not much disc stiffness. No real loads on it other than
    > the starter and the torsional. Can get you get ring gears?
    > Seems like 3/16th mild steel would work. Perhaps you can find
    > some one to stamp press it out of 3/16th mild steel or even
    > normalized 4130. It needs that recessed center.
    > AC Spruce sells 18" by 18" .190 thick 4130 for
    > $90. If you buy 18" by 36" .190 4130 that will make three for $120
    > total or $40 material cost each and have a lot of 6 by 12 pieces
    > left over.
    >
    > The stamp press tooling would be easy to machine on a large
   lathe. It does
    > not need all the holes the stock one has. Just the four 3/8th to
    > mount Tracy's torque isolator. The customer can drill those. Weight
    > is not an over riding concern. The stock counter weight is cheap
    > enough. The kit will sell for the next five or ten years.
    >
    > Paul Lamar ...No rotor no motor.
    >
    >
    >
    > Hi Paul
    >
    > We stock the ring gear in quantity.
    > Now you can order the stamping tooling.
    >
    > Jim Mederer

   Jim,
   Is that the Auto or Manual ring gear ( or both) that you stock and
   are they the same OD as the RX7?
   George( down under)

   How many people are in the market for a flex plate?

   Paul Lamar

Hi Paul,

There are two rotary diameters: All turbo plus manual RX8;
and all NA.

Jim Mederer


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