EEC-IV Modifying

[Bruce Plecan]

----- Original Message -----
From: Paul S. Draper <psd105 at psu.edu>
To: <diy_efi at efi332.eng.ohio-state.edu>
Sent: Sunday, April 11, 1999 7:30 AM
Subject: EEC-IV Modifying

Before deciding on ecms, is there a T/C  S/C  ford application (perferably
correct number of cylinders)?.
Be a shame to do a bunch of work and find out the system doesn't see Boost.
Does the ecm look for a barometric value?.
I don't know about fords strategy on stuff is why I ask.
Bruce


> Hi all,
>
> I've recently decided that I want to switch my 1969 Mustang Twin Turbo 302
> project from carb to efi.  The catch is, that I want to do it as cheap as
> possible.  This means using stock Ford EEC-IV stuff.  My only problem is
that I
> want to use Low Impedance Injectors(2.2-2.4 ohms) with an EEC that was
> originally designed to used High Impedance injectors (~14.50 ohms).  I
know
> that I just can't switch injectors without killing components within the
EEC.
> I have searched through the archives and have found a little bit of
information
> on this, but after looking at an EEC schematic I found on an FTP site, I'm
a
> little confused.  The information I read in the archives from Dan Malek
stated
> that the Switching Transistors, Zener Diodes, and Heat sinks need to be
> changed.  But, I didn't see any transistors used for the injectors on the
> schematic, maybe I'm looking at the wrong schematic?  The part number on
it is
> XSK-E7RF-3451-A1.  That part number says that it's for a 1987 Ford, and by
> looking at the schematic it looks like it's from a Speed Density
application.
> What do I need to switch to make this work?
>
> If anybody can help me with this I'd greatly appriciate it.  Also, for
those of
> you looking for Ford Injector Flow Ratings I have compiled a table on my
site
> with this information.  If you have anything to add, correct, or if you
know
> where I can find more info, please let me know.  The page can be found by
> following the the link to my site in my sig line, and clicking on the OEM
fuel
> system components link on my front page.
>
> Thanks,
>
> Paul
> --
> Paul S. Draper
> psd105 at psu.edu
> 1969 Mustang 302 Twin Turbo Project
> http://www.geocities.com/motorcity/factory/9893
>
>