LT5 DIS was Re: How does a DIS

[Shannen Durphey]

Bob Wooten wrote:
> 
> I am not sure that I am completely falowing you here (or we are talking
> different languages, which is completely possible).  I was not looking @ the
> module @ all other than to figure out where it was.  what I was looking @
> was just the coil pack & the plate/holder that they sit on.  this just looks
> like a holder for the coils.  where as the 6 cyl dis assy (GN etc) looks as
> if the module & the holder are built into one.
> 
> if someone were to want to build a V8 DIS (as I am) I need a way to hold all
> the coils.  this seems to be the way & I can not imagine that this holder is
> that expensive, even @ dealer prices.  I am sure as the other gent mentioned
> the module is rather expensive, but w/o the rest of the LT5 harness, ECM &
> the other module next to the head lamp, I bet that it does not do you any
> good.

It seemed like you were asking for a part number for the complete DIS system.

The "coil holder" is a needed part for the car to run, no?  Without it, do any of
the other parts do any good? ; )
It would be interesting to find out what that part alone is worth at the
dealership.  LT5 parts cen be extremely expensive, due to their relative rarity. 
Many are out of stock entirely.  But do not believe that GM prices it's parts on
anticipated demand from over the counter sales.  Some of their prices make no sense
whatsoever.  Just the same, it's worth the phone call to check.  Sometimes there's
a great bargain to be found.

The 6 cyl DIS modules are different between Buick and 60 degree Cheverolet based
engines, due to the different ignition system designs.  The 4 cyl DIS module as
used in the Cavalier is similar to the 60 degree v6 DIS module.  Gutting 2 of these
units might provide an economical solution to your coil mounting dilemma.  These
parts are extremely common in many junkyards.

DIS and smart coils has been covered several times before.  No, DIS coils are not
smart coils.

Hose down engine = spray water on engine.  Don't spray water on an LT5 engine.  You
run the risk of damaging the ignition module.  If you're ever in the position to be
washing your ZR1, you might find this tip very useful. ; )

Shannen

> 
> which brings me back around to my home grown DIS (on hold @ the moment,
> whilst I install the new converter for an attack on the track), I think that
> I have the "module" done for my DIS (both waste spark & CNP) I just have to
> prove it out & ensure that I am not on crack.  but w/o some way to hold the
> waste spark coils I am looking for some other units (RX7 or something).
> 
> Sorry, so now I have to ask, are any of the GM Waste spark coils "smart
> coils"? if they are then cool, if not then I have to work on a driver,
> probably something like the bosche units.
> 
> Hose down the engine?  what do you mean.
> 
> Sorry to be so long winded, I appreciate the help.
> BW
> 
> -----Original Message-----
> From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
> Of Shannen Durphey
> Sent: Tuesday, May 15, 2001 6:41 PM
> To: gmecm at diy-efi.org
> Subject: Re: LT5 DIS was Re: How does a DIS
> 
> 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
>
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