Running 8 low impedence injectors on GM ECM using an auxilliary injector driver?

[Jason R. Haines]

Doesn't the Accel VIC trigger all 8 injectors at once based on a single
input trigger? Could this cause any driveability problems on the 1990
Camaro/Firebird V8 and other similar GM ECM's? What about bank fire systems?

Jason

> The Accel VIC product is made for exactly what you describe.  Two input
> channels controlling two banks of four low impedance injectors each.  I
like
> the added feature of adjustable pulse trim per injector, in spite of the
> fact that the control architecture remains batch with a VIC.  I think the
> VIC is an excellent product and would not hesitate using external drivers
> (custom or commercial) to control low impedance (or odd gangs) of
injectors
> that are to be triggered by OE style boxes not originally intended for
same.
> This holds true for port fuel or TBI fuel.  Makes good sense as: 1)the
> injectors each get the current that they were intended for, if the
external
> box is done "right", and  2)the ECM/PCM/ECU is relegated to handling
nothing
> more than low current level triggering duties, which won't hurt it's life
> cycle in the least.  Win/Win situation, if you have to use an OE box that
> does not encompass your injector count/type.  I use a number of LM1949
based
> "boxes" in what I play with, and have not yet had any problems.
>
> Walt.
>
>
>
>
> > Has anyone ever tried running 8 low impedance injectors with an
auxiliary
> > injector driver that is triggered by a GM ECM (like a 1990 F-body ECM)?
> > Accel/DFI makes a low impedance injector driver/controller that allows
EFI
> > systems for high impedance injectors to trigger low impudence injectors.
> We
> > have used this system on some of the Accel/DFI applications (before they
> > came out with an ECM that could control low impedance injectors
directly).
> > Anyone see any problems controlling this device from a GM factory ECM?
> Would
> > you use one to control all 8 or two, one to control each bank of 4
> > injectors?
> >
> >
> > Jason
>
>
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