Re: Turbo V6 Tuniing continued

["TK" <terryk@foothill.net>]

Some one correct me, but I've noticed that mass air flow engines have an
injector constant/size that is used in the fuel calcs and speed density's
don't. The seem to use the BPW vs EGR at 0% flow as the injector constant.
The SD's that have the injector constant use it for some other stream.

Ludis, does the Fiero use the injector flow constant?

When I tuned the 749 for the Fiero, I changed the %0 EGR flow.

Mere coincidence or psychic phenomenon?

Terry

----- Original Message -----
From: Jeff M <tystorm@email.msn.com>
To: <gmecm@diy-efi.org>
Sent: Thursday, May 04, 2000 7:39 PM
Subject: Re: Turbo V6 Tuniing continued


> Yes, my paragraph below says that both have Gl/Hr but the SyTy does not
have
> Sec/Gm, which is described as "Product of injector flow rate and fuel
> calculation base constant for single fire".  I still have EGR disabled so
> these injector constant values for me have not needed to be changed yet,
> waiting till main fueling is set before I change the F28 EGR table for the
> bigger injectors.  This Sunday is nearing the final work so will report
back
> next week some time with the results.
>
> Jeff M
>
>
> > The SyTy tables *do* have a setting for Gal/Hr on the injectors, but
> > apparently the code never references it, so its value is immaterial.
> > Haven't tried this yet, as engine's still apart.  Apparently, the
setting
> > to change (closest thing to an injector constant) is the VE vs %EGR
table;
> > if EGR is set to zero, the far left value in the table (0% EGR) should
be
> > the only one to matter.  Again, no info personally - wish my stuff would
> > get here!  It's *beautiful* outside!  Got *lots* of stuff to check out
> now.
> >
> > Barry
> >
> > At 10:15 AM 05/04/2000 -0500, you wrote:
> > >One thing I can say right off for tuning results, changing the Gal/Hr
and
> > >Sec/Gm values in the TGP (the SyTy does not have Sec/Gm setting) chip
to
> > >match the larger injectors seems to of made the VE tables be almost
> perfect,
> > >then I ended up changing other areas to address fueling corrections.
>
>
>
>
>
>
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