EEC-IV Modifying

[Paul S. Draper]

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