another 747 bin

[Shannen Durphey]

Ward wrote:
> 
> The ACSU was superceeded twice AKAJ then AMUR.
Yup.  Was playing around with different cal's.

> There is a posability that the two 350 may not be the same engine.
> 
> 5.7 L05's in Heavy Dutys have a different compression ratio, cam etc.
Should be the same stuff.  Both 1/2 ton, 350, 3.73, 4l60.  One was
tired, the other fresh.  But still...
> 
> Heavy Duty is ant light truck over 8500 GVW.
> 
> Read the fine print in the shop manual.
: )
Shannen
> Ward

> 
> On Sat, 07 Aug 1999 07:21:34 -0400, Shannen Durphey wrote:
> 
> > I have a copy of ACSU.  I tried to use it in my buddy's 90 pickup, and
> > the truck wouldn't run worth a damn.  Stalled at stop signs, hiccupped
> > on the road, really unbelievable.  Yet it worked great in the 87
> > Suburban we took it out of.  It's amazing how factory calibrations can
> > vary.  I have looked at a hypertech thermomaster for a 90 1/2 ton
> > manual trans pickup, and compared it to the stock calibration it was
> > replacing.  The _only_ value that was changed was closed loop enable
> > temp, which had been dropped to allow closed loop with the cooler
> > thermostat.  It was a little dissappointing to find that.
> > Shannen
> >
> > Ron Gregory wrote:
> > >
> > > I just finally read the GM PROM from
> > > my buddy's '87 350 TBI/700R4 Suburban.
> > >
> > > acsu0024.bin is the GM bin
> > > subhtec.bin is the Hypertech bin
> > > that he's currently running.
> > >
> > > http://24.4.36.39/ron/dub
> > >
> > > Do NOT copy that H-tech bin.
> > > You can use it for comparison
> > > purposes only...
> > >
> > > ~~~~~
> > > Ron Gregory                        '91 Syclone #1452
> > > rgregory at iname.com      Garland, TX
> >
> 
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