Re: Lt1 Optispark

[Ward <wspoonemore@excite.com>]

Bruce, when your right your right. I have acouple of there distributors want
on to do development on.
Ward

Ward


On Mon, 28 Feb 2000 21:10:17 -0500, gmecm@diy-efi.org wrote:

>  
>  > I'm sure this has been beat to death time and time again, but what's
the
>  difficulty in building a custom DIS box?
>  
>  Just takes time effort and money.  Your right it's not rocket science.
>  Getting a system to work with all gm components, or using a DIS with a
Dissy
>  type ecm is a trick so far.
>  
>  What parts do you need... a crank wheel, a box to select the right coil
and
>  8 coils.  The ECM still says "fire now", all you have to do is figure out
>  which coil is getting fired.  I would think the factory LT1 optispark
could
>  be used for computer compatibility, and couldn't a parallel shift
register
>  be used to select the coil number, along with a TDC reset line?
>  
>  The optispark would probably be the hardest to do IMHO.  sorting out all
the
>  differnent signal lenghts would be a trick.  To me it would be easier to
use
>  an existing Dissy, and add another sensor, for the sych sifgnal.
>  
>    I'd think this could be done without even a custom programmed module.
>  Same thought with a Batch-fire to SEFI fuel injection system, maybe even
>  done in the same box.  Am I totally off the wall here?
>  
>  For better ignition that is worth the work least to me.  On the SEFI,
why?.
>  Unless running large injectors, the stock ecm handles it just fine.
>  Grumpy
>  >
>  > Doug R - Black 93Z A4 3.73 - D.B. F-Body Organizer
>  > Mods: DragRadials,Hooker 1.75" headers,Flowmaster,AS&M CAI
>  > Mods: 3.73 gears, SLP Torsen, S&S Stage 1 heads, UD pulleys,
>  > Mods: Chip,EibachSprings,1LEswaybars, AFPR - 13.11@105.5
>  > *My car: http://daytona.f-body.org/doug
>  >
>  >
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Ward





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