There was no manual transmission 20B as far as I know. Someone may have done a custom build for one though. The 20B auto counterweight is unlike any of the 13B counterweights.
9.0 for CR on the 20B. (stock that is)
All engines need the 86 - 91 RX-7 auto flexplate for use with the RD-1x geardrives.
Tracy
On Feb 6, 2008 4:50 PM, Phil White < philwhite9@aol.com> wrote:
OK...which flex plate should I look for to fit a 20B that came with
manual trans flywheel and counterweight. Having been twin-turbo'd in
its original life, I understand it would have 9.4:1 rotors (right?).
Does a 3 rotor use the same flex plate and counterweight as a 2 rotor?
Or would the counterweight have to be different??
Phil White - RV-10 (assembling engine now, airframe done)
>
> Subject:
> Flex plate
> From:
> "Joe Berki" <jskmberki@alltel.net>
> Date:
> Tue, 5 Feb 2008 18:03:43 -0500
>
>
> Will a flex plate and counterweight from a 3rd gen 13b fit a 2nd gen
> 13b? How much for a flex plate and counterweight? Thanks for any help.
>
> Joe berki -Limo EZ
>
> ------------------------------------------------------------------------
>
> Subject:
> Re: [FlyRotary] Flex plate
> From:
> "Kelly Troyer" <keltro@att.net>
> Date:
> Wed, 06 Feb 2008 01:01:46 +0000
>
>
> Joe,
> A 3rd gen counterweight and flex plate will fit 2nd gen 13B but the
> counterweight
> will put the 2nd gen out of balance unless rotors and both
> counterweights from the
> 3rd gen are installed also...........On another note if this engine is
> for an A/C using
> Tracy's redrive you must use a 2nd gen flexplate........FWIW
> --
> Kelly Troyer
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