TBI with TPI ecm???

[Bruce Plecan]

Dunno, how you can say "won't get any fuel".   The fuel is just being spit
into a plenum anyway.  In theory firing them twice as often would be better
for atomization, yes.  But, there is a whole lot of vaporization going on
anyway.
  I've run some 5.7 TBIs with both a 730 (8D), and the 749 (using the 8D),
and while not perfect, for an as installed calibration, they weren't at all
bad.  Yes, work was need but there was worked needed for the 747 too.
Bruce



Or, are you asking if you can use a TPI ECM configured for TPI but
driving a TBI?  If so, then the answer is almost always no.  With a TBI,
you have to fire the injector(s) once per induction event.  The TBI uses
the airflow through the wet manifold to route the fuel to the correct
cylinder.  If you fire the injector(s) at the TPI rate, some cylinder(s)
won't get any fuel.

--
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/


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