LT5 DIS was Re: How does a DIS

[Shannen Durphey]

So far the problem has not been the part no., but the price.  As mentioned in a
prior post, expect to pay over $400 per module.

Now if someone could come up with a way to use 2 four cylinder modules, we'd have
scores of cheap parts available for 8 cyl DIS.

The second 8 injectors share pulse widths with the primary injectors.  When the ecm
determines the secondary injectors are needed, an injector driver box is used.  

And don't ever hose down the engine in your ZR1!  The module do not take kindly to
water immersion. : )

Shannen

Bob Wooten wrote:
> 
> I just looked @ one of these @ my buddies Vette shop the other day & boy
> that thing goes 8 ways from tuesday.  there is an "ignition module" on the
> bottom of the plenum.  it has two connectors that goto the "coil pack" this
> looks like nothing other than a holder for the coils & if someone can come
> up with the part number that would be a V8 DIS modifiers dream.  it is a
> simple (& very clean) way to adapt the dis coils to a V8.  I did not have my
> meter handy but this plate looked like nothing but a holder for the coils &
> a place to put electrical connectors.  this goes to the module, & that goes
> to the ecm.  there is another module of some sort over behind the driver
> side head lamp & i am not sure what that is for.  as this has 16 injectors &
> some vacume actuators to open the second 8 runners to the motor I am sure
> that some of this is drivers for these devices.  if i am not mistaken the
> second 8 injectors & the butterflys for the second 8 runners come on @ some
> % of full scale.
> 
> Hope that helps some.  I wish i had more time to play with it, before they
> buttoned it up.
> 
> BW
> 
> -----Original Message-----
> From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
> Of Daniel Collins
> Sent: Monday, May 14, 2001 5:34 PM
> To: gmecm at diy-efi.org
> Subject: LT5 DIS was Re: How does a DIS
> 
> Does anyone know the part # for the LT5 ignition control module ? it looks
> like just what I need to convert a LS1 to run on a 165 ecm ,that I have here
> downunder to put in a rod.
> I dont know how the LS1 pcm hacking is going in the states but at the moment
> there is no one in Aus that can change anything in our LS1 pcm (due to our
> different BCM and code) so I have opted to go the early ecm route (map 165
> ecm)
> 
> Daniel Collins
> Downunder
> 
> ----- Original Message -----
> From: Shannen Durphey <shannen at grolen.com>
> 
> > I'm still working on a reply.  I have more data to add to the ftp site.
> If you're
> > looking through /incoming, look at the two lt5dis files.  They will give a
> rough
> > idea of DIS operation.  there are some differences between the 8 cyl
> version used
> > with the Y cars and the version used on 4 and 6 cyl cars, but I believe
> it's
> > similar enough to give a good understanding of what's happening.
> >
> > Do you have something specific in mind, or are you satisfying your
> curiousity?
> > Shannen
> >
> 
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