Power Data Graph - Was Re MAF BLM based tuning

["Dave Zug" <dzug@delanet.com>]

I guess I got the only good MAF sensor they made... non-stock cam (not
lumpy, however it is a bit larger then asock all around, and uses 1.6 RR's)
and it idles perfectly at 575.

When I was on EFI list, there was an underlying desire by long timers to
create a ECM list, to keep EFI for EFI. Whats this, I gotta start a
GM-MAF-OUTCASTS list now?  ;-}

 Hey I have an unrelated request. IF anyone has data from a 1/4 mile run,
recorded to file, try to plot a XY graph using RPM as one axis, and LV8 as
the other. If your LV8 is max(255), then use AIRFLOW insted, if you have it.
Check out the resulting graph, I'm inclined to think this is a good
benchmark for checking performance gains, and for comparing power between 2
engines roughly. Load verses RPM thru the gears (auto trans car looks best).
I can single out second gear data and use that as a single line comparison.
If anyone does this, email me a snapshot (screengrab:  alt-printscreen you
know) of the graphic, or just the data so I can play some. Please anyone
have any thoughts? Thanks.




----- Original Message -----
From: Bruce Plecan <nacelp@bright.net>
To: <gmecm@diy-efi.org>
Sent: Wednesday, July 05, 2000 7:42 PM
Subject: Re: MAF BLM based tuning


>
> One's I get to play with always hava $hitty idle.
> Grumpy
>
>
> > Umm...  old Vettes run better sans MAF.  Ya gotta laugh when "limp
> > home"
> >  adds power and driveability.
> >
> > Shannen
> >
> > Bruce Plecan wrote:
> > >
> > > Ah ha,
> > > got it
> > > unplug MAF,
> > > tune limp home mode so Aplha-N works better!
> > > Grumpy
> > >   This is CSH humor at it's finest..
> > >
> > > > Go figger... I can't tell if I crafted the wording poorly, if there
> was a
> > > > global "why the h...", or if it's just too cerebral a question?
> > > >
> > > > I know, not worth an answer if it ain't MAP or LT1 PCM.
> > > >
> > > > Turns out I think I can fake it using the MAF flow calibrations, but
> it
> > > > seems too much of a band aid. aaargh.
> > > >
> > > > gotta find that 90 MAP IROC with the blown drivetrain selling for
> $1000.
> > > ;-)
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: Bruce Plecan <nacelp@bright.net>
> > > > To: <gmecm@diy-efi.org>
> > > > Sent: Tuesday, July 04, 2000 11:35 PM
> > > > Subject: Re: MAF BLM based tuning
> > > >
> > > >
> > > > >
> > > > > Gosh, the silence is deafening
> > > > > Grumpy
> > > > >
> > > > > > (This is for MAF '165 ARAP... 383 app)
> > > > > > Given that the BLM cell seperators are 13,21,34 g/s, and
> 700,1200,2000
> > > > > > RPM...
> > > > > > and as an example, say cells 6 and 10 show high values (160)
and
> the
> > > > rest
> > > > > > are fine (low 130's).
> > > > > > Since I have no VE tables to speak of,  What would be a good
first
> > > step
> > > > in
> > > > > > settling the bad BLM's back to normal, without affecting the
rest
> of
> > > the
> > > > > > good BLM's?
> > > > > > Please respond without using the word "MAP"   ;-P
> > > > > > Extra credit:  Anyone tried expanding or sliding the range that
> BLM's
> > > > > > affect?  like 13,27,40 and 700,1600,2800?
> > > > >
> > > > >
> > > >
> > >
>
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> > > >
> > >
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