Mailing List flyrotary@lancaironline.net Message #19647
From: Tracy Crook <lors01@msn.com>
Subject: Re: [FlyRotary] Re: Well, I bought an RX-8 Engine....
Date: Thu, 31 Mar 2005 14:59:00 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Dennis & Bill,  No reason not to use the RX-8 coils, the EC2 will work with them (be sure to specify this when ordering EC2).  The RX-8 injectors are fine too, very compact and light.  The EC2 now has the ability to be setup for the different primary & secondary flow rate injectors as used on the Renesis.  It is a pain to adapt the Renesis block to fit the earlier 13B injectors anyway.
 
The regulator is not what you have on the engine.  That is a pulse damper.  Regulator is in the fuel tank I believe.  You will need a separate 3 port (manifold referenced) regulator. 
 
The RD-1C requires that the engine be equipped with the auto counterweight (rx-8 model) and a 1986 - 1991 RX-7 auto flexplate (it fits).  Don't use the spacer on  RX-8 auto flywheel if you happen to have it.
 
No problem removing one tension bolt at a time, won't hurt anything.
 
Tracy

Bill:

I'm thinking about using the injectors and fuel rails that came with the
RX 8.  I also plan on using the RX-8 ignition coils.  I don't know if
the regulator will work on a N/A application because it is not
referenced to the manifold pressure.  I ordered an adapter for the oil
injection pump to use 2 cycle oil.  I believe you will need a starter
from an RX-7 engine to use with Tracy's RD -1C.  I'm not planning to
tear my engine apart at this time.  I hope to use the alternator
mounting pilot point on the engine.  I hope we can remove one tension
bolt at a time and RTV it without disturbing anything else.

Dennis H.


Bill Dube wrote:

>     I just got a good deal on a used RX-8 engine. I'll actually have
> it in a few weeks.
>
>     I have Tracy's "Big Book".
>
>     From the "Big Book" (and this discussion list) I know what needs
> to be done to an RX-7 engine, but I'm not quite sure what I'll need to
> do to the RX-8 engine. I'm also not quite sure what my range of
> modification options are.

>
> I think I _need_ to;
>
> 1) put in a thermal pellet plug.
> 2) get injectors, build fuel rail, build a new intake manifold.
> 3) relocate the alternator.
> 4) put on underdrive pulleys.
> 5) fabricate an engine mount.
> 6) relocate the oil filter.
> 7) fabricate exhaust system.
> 8) buy the RD-1C, EC2, EM2 and everything else Tracy sells. :^)
> 9) RTV the tension bolts.
>
>     I'm not sure if I must:
>
> 1) tear the engine down and modify stuff internally.
> 2) buy Corvette coils (can I use the OEM coils?)
> 3) chop up the oil filler and fabricate a low-profile replacement.
> 4) Get an oil injection pump adapter (does the RX-8 pump already draw
> from a separate tank?)
> 5) Get a flexplate and/or counterweight from an aoutomatic.
>
>     I plan on bore-scoping the engine immediately upon arrival. If it
> has great compression and looks good internally, I hesitate to tear it
> down just for inspection. Is there anything that I _MUST_ do to the
> internals?
>
>     Thanks in advance,
>
>     Bill Dube'
>
>
>    
>
>
>>>  Homepage:  http://www.flyrotary.com/
>>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>>
>

>>  Homepage:  http://www.flyrotary.com/
>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster