Re: 2.8v6 tpi and a 730

[Ludis Langens <ludis@cruzers.com>]

Ernst denBroeder wrote:
> 
> I'm not interested in putting DIS on this engine.  I just want to use the
> '730 the way it is used on a V8 tpi but with two less holes in the engine
> block.  :)
> 
> I'm assuming here that a v6 2.8 DIS memcal can be reprogrammed with AUJP(?)
> and edited to work with 6 cyclinders (kinda like how a 350 '747 tbi bin can
> be made to run on a v6 by only changing the # cyclinders).

Which V6 MPFI intakes did you get?  I assume you got the Gen I because
the Gen II's won't mate to the iron heads.  (The aluminum Gen II heads
have a different shape.)  Your TBI engine has the iron heads.  There are
actually also two versions of the iron heads - small valve and big
valve.  Low output carb engines have small valves, MPFIs have the big
valves, I don't know which size your TBI has.

Gen I MPFIs use a dizzy.  You might be better off converting to a
complete Gen I (C3 ECM) system rather than trying to rig a '730.  For
Gen I, your ECM choices are the 1226870 ('85) and 1227302 ('86-'89) if
you want to use MAF.  If you want MAP, use a 1226869 or 1227170.  For
the former pair, you could start with a stock Camaro calibration, the
latter, a Fiero cal.  TK's GMEPro supports the latter.

If you examine GM's 2.8 MPFI engine lineup in the late '80's, you'll
notice that the higher output applications retained the iron head Gen I
design.  This is despite the theoretically better canted valves of the
aluminum Gen II heads.

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

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