Mailing List flyrotary@lancaironline.net Message #29501
From: Bob White <rlwhite@comcast.net>
Subject: Re: [FlyRotary] Re: LS1 Coil Failures
Date: Wed, 18 Jan 2006 22:23:33 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi David,

There is one version of the MSD coil that is a direct replacement for
the LS1 coil.  I'm sort of making an assumption that it is a multiple
spark coil.  I can't remember right now if Lynn is using leaded fuel
either, but I think better firing of wet plugs is accurate.  That's a
good thing too. :)

Bob W.

On Wed, 18 Jan 2006 21:50:17 -0700
"David Carter" <dcarter11@sbcglobal.net> wrote:

Lynn H has provided regular info on MSD ignition systems - am I correct in "remembering" that the MSD coils would be used in place of the GM LS-1 coils?  Wasn't there an implication or experience that plugs don't foul as badly with MSD?  Or was that an issue only of "starting better" if plugs get wet?  Probably two different things - but would be nice to have someone report experience with MSD and 100LL fuel.

David

----- Original Message ----- From: "Bob White" <rlwhite@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, January 18, 2006 7:31 PM
Subject: [FlyRotary] Re: LS1 Coil Failures


> This isn't in response to any other comments on the issue, but I wanted
> to mention again that there is a replacement LS-1 coil that has a heat
> sink fin on the back.  This should provide lower internal temperatures
> for the electronic module.  It is the AC Delco D585 coil, GM p/n
> 10457730. I have my coils mounted on top of the engine so may have the
> same heat problem that Tracy is seeing.  I did use the Corvette coils
> because I could get connectors for them.  If I do have coil failures, I
> will try a set of the D585 coils. These coils use the smaller connector
> like the truck coils.
>
> Speaking of connectors:  After months of grief trying to buy them, I now
> have the smaller connectors in stock.  I still have to sort out the
> costs, but I will be able to sell the connectors as well as make up
> cables for the truck LS-1 coils.
>
> After Bob Mears comments on lead fouling I have sort of given up hope
> on the LS-2 coils being of any help.
>
> Bob W. (Up to my elbows in ProSeal fixing leaky gas tank (I hope.))
>
> -- > http://www.bob-white.com
> N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
> Custom Cables for your rotary installation -
> http://www.roblinphoto.com/shop/
>
> --
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--
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
Custom Cables for your rotary installation -
http://www.roblinphoto.com/shop/
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