Quote:
Originally Posted by Beamer
I have 55 lb injectors in my T.
I have assumed (don't say it...), that I have a modified ECM,
as anything above 50 Lbs injectors
needs to be modified for the low impediance.
I have also heard that some 55 Lb'ers do not require modifying the ECM.
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Mike,
First, visit this website:
racetronix - index
(
("Z" = Impedance)
There you will find the listing
for the various hi-Z & low-Z injectors.
Factory GM ECMs in TRs were built for the hi-Z injectors.
Modded TR ECMs can utilize the low-Z injectors.
There are
both hi-Z and lo-Z 55#s.
The overwhelming odds are that yours are the hi-Z 55#s.
Likewise, the same odds stand on you having an unmodded ECM.
Since Bob Bailey does all (or practically all) the TR
ECM injector driver mods, he'd be a good one to ask
any further info as to identifying the modded units.
Look for the "Ask Bob" forum on the fullthrottle website.
HTH