[Shotimes] Re: 2 Cylinders Fire at once? How our coil pack works...

Paul Nimz pnimz@v8sho.com
Sat, 3 Apr 2004 10:09:16 -0600


Well after looking at the diagram that I sent you the 1,2,3 plugs are a
positive fire.  From center electrode to ground.  And the 4,5,6 plugs are a
ground fire.  From the engine block to the center electrode.  So each
individual coil does not alternate between  a + fire and a - fire but is
always one or the other.  Now what you got to say?

Paul Nimz
'97 TR
'93 EG mtx


----- Original Message ----- 
From: "James F. Ryan III" <av8r567@optonline.net>
To: "Paul Nimz" <pnimz@v8sho.com>; "Frank Costa"
<SHOrage@brothersofmetal.org>; <shotimes@autox.team.net>
Sent: Saturday, April 03, 2004 8:55 AM
Subject: Re: [Shotimes] Re: 2 Cylinders Fire at once? How our coil pack
works...


> I wrote:
>
> > I am under the impression that we need the PP because current flows
> > thruu the plug in both directions because of the way the coils are
fired.
>
> You wrote:
>
> > They don't do that.
>
> Then you wrote:
>
> > And yes the wasted spark is going in the opposite way of the normal
> > spark,. from block to plug.
>
> Make up your mind.  During the power stroke the current flows from center
> electrode to side electrode, and during the exhaust stroke the current
flows
> from side electrode to center electrode.  CORRECT?  Hence the need for
> platinum on both electrodes.