DIS for GMECM

[rr]

At light cruise a bunch more advance can be used. In hiway mode
with a lean AFR I've had the engine at 52 deg BTDC. Need to set
the dizzy at 10deg initial for this much crank timing.

BobR.

Bob Valentine wrote:

> As best I understand it DIS allows a longer dwell (charge time) for a given
> coil at higher RPM's, resulting in a hotter spark.   You also eliminate the
> wear of air gaps at the distributor caps.   Less moving parts, less failure
> points is good from the OEM point of view.
>
> Also, advance is "unlimited" since you don't run into rotor phasing issues.
>   This still confuses me, since it's my understanding that there's almost
> no app that you would want more than 45 or so degrees of advance anyway,
> from the tone of a lot of messages recently.
>
> -> Bob Valentine
> -> bob at tecmark.com
>
> At 06:51 AM 12/5/2000 -0800, you wrote:
> >DIS=Distributorless Ignition System?
> >
> >So what's the point of trying to get a "DIS" working on an AUJP/730 if my
> definition of DIS is
> >wrong?  Explain to me why there is this holy-grail of getting DIS running
> on a V8/730.
> >
> >Squash
> >
> >--- Chipsbyal at aol.com wrote:
> >> This is not a DIS system as it is a distributor less system. This is a CNP
> >> coil near plug system. Each cylinder has its own ignition module, coil and
> >> plug wire. The interface that was at the show only drives the separate
> >> modules. Speed Pro also had an interface to use this CNP ignition for
> their
> >> systems.
> >> AL
> >>
> >
> >
> >__________________________________________________

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