If you look down this list to the Toyota engine
4ME 5ME and 5MEG with the 2.4 ohm 36 pound injector I am
willing to bet that is the same one Mazda uses.

If Tracy's EFI is designed to use the high impedance (13.8 ohms)
version that is probably the one up a bit in the table  for
the Toyota 4AFE engine. That one is also 35 pounds.

It is waste of electrical power to put a five ohm resistor
in series with the injector coil.  There are
some injector driver chips that handle the peak
and hold low impedance injectors.

I think the Harris Semi HTP14N40F3VL could be one of them.
Also National Semi LM1949.
Cherry Semi CS-452 and CS-453.

While searching I also found the Harris Semi HIP9010 knock
sensor signal processor. More on that later.

Paul Lamar

You might also like to check the listing on the TWM site
http://www.twminduction.com/EFI/EFI-FR.html
I have the Rochester 2900-2013  (50 lb/hr) in the secondary rail on my 20B.
Got them at the local speed shop for $94 each.  Probably a better price
somewhere else.

I had the stock injectors in my primary rail (turbo 20B) cleaned and flow
tested; came in at 570 cc/min which is about 55 lb/hr.

Al

Al, what diameter and length would we need to bore the injector holders
for those Rochester 2900-2013 injectors? Just measure one with
a vernier/dial caliber if you don't mind.
 
Paul Lamar
 
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