Re: MAF BLM based tuning

["Jim and Sharon Brady" <bradyiii@shore.intercom.net>]

Excellent.  Already read programming 101.  Started looking at the
archives...wow!  Tons of e-Mails to sift through.

Jim Brady (Dopey)
'87 Monte SS 383 TPI 6 speed

> JIM:
> You need to start doing a little research,
> start with looking and the home page, and look around there are lots of
> interesting bits there, you might even stumble over programming 101.
> The archives are rich in info..
> Grumpy
>
>
> Bruce,
>     Yeah, looks like I am going to have to bite the bullet and start my
> preliminary planning for the installation of a '730.  Which factory EPROM
> would be a good starting point?  How would I go about recalibrating a new
> one?
>
> Jim Brady
> '87 Monte SS 383 TPI 6 speed
>
> >
> > Bruce ,
> >     With that being the case why would I want to trash the MAF in favor
of
> > MAP for my future forced induction application?
> >
> > For ease of execution and resolution of calibration, yes.
> > You *might* get by using a late 3.5 MAF, but it would be alot of work.
> > MAFs, Hate Oil, so it would have to be upstream of the S/C. I haven't
seen
> > any hacs for the new stuff floating around, so it would mean adapting
the
> > MAF.  No ones tried just resetting the maf frequency numbers in a 165
and
> > tried that, so that is one possible answer, but:
> >
> > Or just runs Johns 2bar 730 patched code, run a vacuum line to the MAP,
> and
> > be done with it.  AND there is that full time baro option.
> >
> > Plan B sure sounds easier to me.
> > Grumpy
> >
> >
> >
> >
> >  I know that upgrading from a '870 to a '165 would increase my serial
data
> > rate but what would I
> > gain from a '730?
> >
> > Drive ablity, tuning is easier..i found droped me over .5 sec in ¼
> compared
> > to stock maf
> >
> > Couldn't the MAF data be recalibrated with a prom to measure greater
> airflow
> > than it was intended to measure stock?
> >
> > Then you loose resolution and hencedriveablity
> >
> > I'm hoping for 500-550hp and would like use the MAF computer in the
short
> > term.
> >
> > Been through all this when I was a newbie too.....the 730 seems to
> > be a newer ecm.. got more tables and options to play with, like lean
> cruise
> > mode, better tcc control(not that it matters to you)
> > Easy to patch stuff from other 730 apps, close relative to 749.. I
> > think, so is possible to controll boost,ect ect..
> > Trust me.. much easier to tune....better throttle response, and mpg
> > in town and in hills... higway was same as 165.,
> >
> > > The MAF doesn't stop the engine from making any HP at a specific
> > gm/sec,
> > > just your out of calibration when that happens, ie no more timing
> > > corrections or fuel corrections can be made.  Given the right
> > combo, you
> > can
> > > get 500 HP out of one, but that probably er could just as easily
> > be 550.
> > > Grumpy
> > >
> > >
> > > > The MAF just barely touches 231 as the automatic shifts, so NO
> > its not
> > > > maxxed.  Now the LV8 rides at 255 except for a brief drop off
> > just
> > before
> > > > the shifts, in a WOT run.  All the talk about maxing out the MAF
> > and my
> > > > stroker motor ain't there yet, but the E.T. numbers show it's
> > pushing
> > 350
> > > > HP.  If what is really meant is that the LV8 will max out, well
> > I can
> > see
> > > > that.
> > > >
> > <snip
> > > > > Dave,
> > > > >     Are you outflowing the MAF yet?  How are you modifying
> > your
> > > ECM/PROM?
> > > > > Do you think knocking you initial timing back could help your
> > knocking?
> > > > I'm
> > > > > running 87 octane w/9.3:1 compression (aluminum heads) with no
> > knocks
> > so
> > > > > far.  What mods(if any more) do you have planned for the
> > future?
> > > > >
> > > > > Jim Brady
> > > > > '87 Monte SS 383 TPI 6 speed
> > > >
> > > > <Snip>
> >
> >
>
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