Holley 4 Brrl gm ecm

[Shane Buss]

The injectors have to be run in SERIES not parallel..

Dan has been using his stock ecm with a 700cfm 4 bbl unit with 0 Problems
wired in series..

by the way my monster is alive :-)
----- Original Message -----
From: "nacelp" <nacelp at bright.net>
To: <diy_efi at diy-efi.org>
Sent: Saturday, May 20, 2000 9:08 PM
Subject: Re: Holley 4 Brrl gm ecm


>
> Don't bother
> I was using a 749,
> just tried 2 TBI injectors on one driver P+H, and killed the ecm.
> No smoke, just stopped firing injectors, but the LED still flickers (in
> parrarel with injectors),
> any one gotta clue about that?
> Grumpy
>
>
> > Which ECM did you use?
> > I tried different wiring setups with a 730 & Projection 900cfm TBI
> > last year, and finally gave up.  The injectors could be made accurate
> > and stable at idle, but 2k RPM was a bad thing..  It was either way rich
> > or way lean... The "real mechanical pulse widths" seemed to be very
> > unstable.  I'll try it with a 749 as soon as I get my hands on another
> >  big displacement engine.  My friend got impatient with my slow
> > "work for beer" approach to his BBC camaro show piece,
> > and paid someone with a dyno to put an electromotive system on it..
> > Mike V
> > > Just to satisfy my own mind,
> > >  I wired up 2 TBI  P+H injectors in series, and fired up the ecm
bench.
> > >  Batch fire v-8
> >
> > ----- End of forwarded message from owner-diy_efi at diy-efi.org -----
>
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