LT5 DIS was Re: How does a DIS

[Len Sabatine]

    Well BW , on the other side of the street , especially with older OBD1 
controllers,
    Northstar/ Arorra coil pack / module might be worth a try. Intrestingly 
, Nissan
    NSX 16v used COP with external thin film module to fire the 4 coils. , 
Chevrolet
    rearranged the furniture , built a similar ckt individually integrated 
and  added
    a short secondary wire. Better to fire with each coil than fire 2 with one
    coil. The recovered loss really starts to add up to big dividends.The 
thin film ckt
    in the LS1 CNP could be duplicated , outside the potting, if someone 
wanted to
    do the work. It's no accident that the LS1 PCM has much less hardware 
on the
    PCB real estate.
    Len

>Vrooooom indeed.  there are up & down sides to each way.  I think that the
>perfect marriage would be the inexpensiveness of the Waste spark coils, but
>to have the drivers built in & a TTL level input signal (either rising or
>falling is OK).  anyone knows of such an animal, let me know.
>
>BW
>
>-----Original Message-----
>From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
>Of Len Sabatine
>Sent: Thursday, May 17, 2001 7:20 AM
>To: gmecm at diy-efi.org
>Subject: RE: LT5 DIS was Re: How does a DIS
>
>
>       CNP needs crank position reference [ sensor] input. Controller needs
>to
>       know #1 position. Strategy is used throughout GM with DIS IGN.
>       Sounds like fun. Since drivers are on CNP coils , A stand alone sys
>could
>       be workable. Think of all the spark loss eliminated with all those
>feet of secondary
>       wire removed , along with much improved ms response time. Vroooom.
>       Len
>
>
> >I have an LS1 bank (the other one is still @ the Vette shop) that I am
>using
> >for the experiment that I have going here.  I think that the CNP is the way
> >to go as the coils have the igniters in them but you also have the added
> >head ache of having to have a #1 cyl indicator.  I have an opto pickup in
>my
> >91 F-body distributor that I am going to see if it is going to work.  I
> >don't see any reason why it wont.  but a much more simple & probably more
> >robust design would be a Waste spark but now I have to deal with the added
> >complexity (& expense) of coil drivers.  plus the COOL factor of CNP, is
> >waaaaaaaaaaaaaaaay up there with CNP.
> >
> >BW
> >
> >-----Original Message-----
> >From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
> >Of steve ravet
> >Sent: Wednesday, May 16, 2001 9:13 AM
> >To: gmecm at diy-efi.org
> >Subject: Re: LT5 DIS was Re: How does a DIS
> >
> >
> >The new GM truck engines are CNP, they have a very nice looking bracket
> >holding 4 coils, with short wires to go the plugs.  I have no idea what
> >the electrical interface is but they look like a neat solution
> >
> >Bob Wooten wrote:
> > > 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
> >
> >--steve
> >
> >--
> >Steve Ravet
> >steve.ravet at arm.com
> >ARM,Inc.
> >www.arm.com
> >---------------------------------------------------------------------------
>-
> >To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> >in the body of a message (not the subject) to majordomo at lists.diy-efi.org
> >
> >---------------------------------------------------------------------------
>-
> >To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> >in the body of a message (not the subject) to majordomo at lists.diy-efi.org
>
>----------------------------------------------------------------------------
>To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
>in the body of a message (not the subject) to majordomo at lists.diy-efi.org
>
>----------------------------------------------------------------------------
>To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
>in the body of a message (not the subject) to majordomo at lists.diy-efi.org

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org