Message-ID: <1087129692.40cc485c3e45a@webmailapp4.cc.utexas.edu>
Date: Sun, 13 Jun 2004 07:28:12 -0500
From: msteitle@mail.utexas.edu
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: GM Coils
References: <list-150606@logan.com>
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Yes, and no.  I'm using the same coils as those on my 2000 Chevy P/U.  It has
the small LS1 v-8, I think it is a 5.3.  Anyway, it has eight individual coils
mounted on the valve covers.  The connector is on the opposite end as the
secondary lead tower.  It takes a different connector as the Corvette coil, so
make sure you get the right ones.  As I recall, I had to make a minor mod to
the connectors to get them to fit, but you would never know it by looking.  

The GM p/n for the connector is 12126487 or PT757 (A/C Delco).  The GM p/n for
the coil is 12558693, or D581 for the Delco p/n. As for cost, I don't think
they were any cheaper than the Corvette counterparts, but I didn't compare
prices when ordering.  Coils were about $27/ea and the connectors were about
$30/ea.  Might be cheaper to buy a complete harness from GM.

Coil wires were another problem.  I got the coil connectors from MSD (call them
and they will send a set for free) and then cut up a set of universal plug
wires. 

Mark


> Thanks, Kelly
> 
>     I'll check it out.  Mark, do you have a part number/source
> 
> Ed
> 
> Ed Anderson
> RV-6A N494BW Rotary Powered
> Matthews, NC
>   ----- Original Message ----- 
>   From: keltro@att.net 
>   To: Rotary motors in aircraft 
>   Sent: Sunday, June 13, 2004 3:09 AM
>   Subject: [FlyRotary] Re: GM Coils
> 
> 
>   Ed,
> 
> 
> 
>     Take a look at the coils that Mark Steitle used on his 20B. Think they
> are the same 
> 
> 
> 
>   as his Chev or GMC pickup has. As I recall they offered some advantages
> over
> 
> 
> 
>   the coils Tracy and others (including me) have. I believe Mark said they
> were
> 
> 
> 
>   easier to mount (connector on opposite end from plug lead) and used a less
> 
> 
> 
>   expensive connector. They also work with the EC-2. I do not know if the
> EC-2
> 
> 
> 
>   program is the same as the LS1 coils called out by Tracy. IMHO
> 
> 
> 
>   Kelly Troyer
> 
> 
> 
>   --
>   Dyke Delta/13B/RD1C/EC2 
> 
> 
> 
> 
> 
> 
>     -------------- Original message from "Ed Anderson" : -------------- 
>      But, still got a few things to do to the aircraft, want to redo my motor
> mounts as I find I have no rubber insulation between engine and mount (it
> just looks that way).  Would like to switch to LS1 coils, need to get the EC2
> updates in any case, so that would be the time to have it converted to LS1
> coils.  
> 
>     Anyone know of a supplier with a good price on the  LS1 coils?  The
> electrical connector as well, those things cost almost as much as the coils. 
> I think I can find some non-OME connectors at a much more reasonable price.
>     I purchased on coil back a while ago just to see what it weighed and to
> have for mounting measurements.  The price of the coil was reasonable, but
> the electric connector surprised me.
> 
>     Ed
> 
>