GM ECM injector driver capacity

[Bruce Plecan]

-----Original Message-----
From: Jennifer and Brock Fraser <fraser at forbin.com>
To: diy_efi at esl.eng.ohio-state.edu <diy_efi at esl.eng.ohio-state.edu>
Date: Tuesday, August 25, 1998 12:19 AM
Subject: Re: GM ECM injector driver capacity



>I think the best and most error-proof course of action is to scrounge up 16
>injectors and hook'em up to Bruce's bench.  We can just pulse them dry
>(without fuel), if just for a short period of time.
>
>I know I've got at least 12 spare stock GM injectors, so let me see if I
can
>round up a full set of 16.

Would need connectors too.  32 of the right sized terminal ends
would be fine, need not be the full injector connector.
>
>Bruce-  if you'd be willing to test the rig, I'd cover the cost of a
>computer if we smoked the drivers in yours.  Do you have a 730 or 165
>computer for the experiment that can be used on your bench?

Got both...       Anybody have any comments about using the current
limiting feature??..

 I don't have
>one-  I'm still in the feasibility stage of this project, which is why I'm
>asking the question...  A batch of 16 injectors clattering are really going
>to be "whistlin' dixie" on your bench...  You might feel like tap dancing.

Your don't know how funny that is to me.
Noises like that always get the staff, and cat excited.
>
>Is the consensus to gang the two drivers together (as is stock), and then
>run the 16 injectors in parallel from that point to ground?  I'd need to
rig
>up some wiring for this experiment.

I can see doing the following

4 groups of 4sets,
    Fire the groups as 4,
    Fire the sets in groups of two with each set being in series.

Maybe a better way to say it is fire all 16 individually
and then 8 pairs (the pair being in series).
>
>-Brock
>
>PS-  Still no replies on my Caddy 4.1L v8 DIS for 165/730 ECM soundbite...
>I can't believe it!

Well maybe you hit a combination that has stumped the band.
Hmmmmm, that is odd.
Cheers
Bruce
>