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Subject: RE: [FlyRotary] Re: Connectors for the D581 Coils
Date: Tue, 18 Oct 2005 15:26:23 -0500
Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E02B9B0F6@MAIL01.austin.utexas.edu>
Thread-Topic: [FlyRotary] Re: Connectors for the D581 Coils
Thread-Index: AcXUHV30n/Zpvq0BSoCwjwR9Q8Z0NAABIs3g
From: "Mark R Steitle" <mark.steitle@austin.utexas.edu>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Ed,
I tend to agree, but I can't help but wonder why GM added the heat sink.
Possibly there has been enough failed D581 coils to justify the extra 5
cents per coil.  Just a thought. =20

Mark S.

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ed Anderson
Sent: Tuesday, October 18, 2005 2:51 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Connectors for the D581 Coils

Bob, the only advantage I can see to the D585 is the metal heat sink
might=20
make it less susceptible to high under the cowl temps.  I recall losing
my=20
leading ignition coil early on due to the fact that a resistor in its
base=20
apparently could not take the continuos high rpm load and heat.  But, if
no=20
one is having problems with the D581 then probably nothing to be gained.

Ed
----- Original Message -----=20
From: "Bob White" <bob@bob-white.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, October 18, 2005 2:46 PM
Subject: [FlyRotary] Connectors for the D581 Coils


> Because I've had a request to build a coil cable for the D581, I did
> some serious searching to see if I could find the correct connector.
I
> might have found it, but I'm waiting to receive a sample to see if
it's
> actually the right one.
>
> After much searching on the web, I found a part number for the cable
> that connects 4 coils to a single 7 pin connector.  GM p/n 12582189.
> This is equivalent to the GM cable used with the D580 coils.  I
ordered
> one of them so that I would have a reference for the connector (see
> attached photo).
>
> I believe I've located the connector at the Delphi distributor.  I
have
> a sample on order to see if it truly matches.  If it's the right one,
I
> will be able to build the coil cables for the same price with either
> connector specified.
>
> Last week I looked at the connectors on a 2006 Chevrolet Truck at the
> local dealer.  It uses the same connector.
>
> I also ran across another coil that would probably work.  The D585
> coil.  The only thing is, it costs more, and someone would have to
> verify that it is functionally the same, so I don't see any advantage
in
> using it.
>
> For more pictures and information, I've put a web page at:
> http://www.roblinphoto.com/LS-1_Coils/LS-1Coils.html
>
> Bob W.
>
> --=20
> http://www.bob-white.com
> N93BD - Rotary Powered BD-4 (real soon)
> Prewired EC2 Cables - http://www.roblinphoto.com/shop/
>


------------------------------------------------------------------------
--------


> --
> Homepage:  http://www.flyrotary.com/
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>=20


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