Switches or relays?

Bruce nacelp at bright.net
Sat Nov 17 00:11:15 GMT 2001


All the sparks are A/C.  Coil condenser oscillations, an all don'tcha know.
Bruce


----- Original Message -----
From: "Jim Blackwood" <jblackwood5 at home.com>
To: <diy_efi at diy-efi.org>
Sent: Tuesday, November 13, 2001 9:58 PM
Subject: RE: Switches or relays?


> Normally that would not be the case, although it could be done. Usually
one
> lead of the coil primary will be switched while the other goes directly to
> positive. There is no intrinsic advantage in changing the polarity of the
> spark for a street engine, motorcycles have used this system for at least
30
> years. A multiple discharge would have sparks going in both directions
(AC).
>
> Jim
>
> -----Original Message-----
> From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
> Behalf Of Ron Schroeder
> Sent: Tuesday, November 13, 2001 3:03 PM
> To: diy_efi at diy-efi.org
> Subject: Re: Switches or relays?
>
>
> At 12:32 AM 11/9/01 -0800, you wrote:
> <snip>
> >** An analogy:  You seem to think the HV terminals are each the
> >equivalent of a stick welder's welding rod.  Instead, one is the rod and
> >the other is the ground clamp.  They trade off functions with every
spark.
> >
> >--
> >Ludis Langens
>
> Hi Ludis,
>
> I hven't really looked into Wasted Spark much but I have a simple
question.
>
> Does the drive to the primary trade functions too (reverse polarity) every
> other firing?
>
> Ron Schroeder
> WD8CDH
> E. E. S.
> wd8cdh at bnl.gov
> rjs at bnl.gov
> ron at 112motors.com
> 631 344-4561 Day
> 631 286-5677 Nite
>
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