Front side plate is also unique in that it has bosses and bolt holes to bolt it to the thick 20B hsg............The 93-2002

13BREW  RX7 front housing has these undrilled bosses but the intake ports are smaller than the 13B-20B Cosmo...........

 

       I believe Tracy's 20B was built up using 13BREW plates and hsgs except the unique 20B thick hsg........If I remember

correctly this 20B hsg's intake ports were matched to the 13BREW with Epoxy..........There may be other mix and match

problems that I am not aware of...........

 

 

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

"TURBONETICS"_TO4E50 Turbo

From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sunday, October 9, 2011 8:01 AM
Subject: [FlyRotary] Re: 20 b build

Don't forget about the counterweights. 

Mark

On Sun, Oct 9, 2011 at 12:59 AM, Dave <david.staten@gmail.com> wrote:

On 10/8/2011 11:20 PM, Samuel Treffinger wrote:

Is it possible to build a 20 b engine from parts??? Maybe a 13 b core and a 20 b eccentric shaft.

Sam

You need an additional iron plate that is unique to the 20b.  Obviously you'd need a bolt kit from a 20B

Dave

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