Idle and the idle VE table

Bruce nacelp at bright.net
Sun Sep 24 23:46:25 GMT 2000


Try rereading this.
Bruce

> >  BTW, not all cars run best with
> > 128s everywhere










From: "Ben" <sappyse107 at gmforums.com>
Subject: Re: Idle and the idle VE table


> I have a different cam in there now, and larger injectors and ported
> manifolds and heads.  I have the BLM locked at 128 because of what I read
in
> one of the FAQ or tuning tips.  I guess if 128 isn't what im looking for,
i
> have no idea where to start.
>
> Idle sounds normal, the car drives fine actually its just not any better
> than the stock chip minus the tolerance now for the larger injectors.  The
> whole reason I thought there was a problem at idle was because the INT
would
> increase to about 156 normally, and sit there.  There was nothing I could
do
> to lower it, and everything seemed to just make it go up faster and
higher.
>
> I guess ill read over the FAQ and tuning tips again and see if I missed
> anything.  Im trying to get my fuel economy back for normal driving, and
to
> get the WOT performance to be at its best.  If I don't really need the
chip
> to be dead on for 128 everywhere, I guess I can fix the few areas that are
> in the 140s and 110s for INT (BLM 128) and go from there.
>
> I do have one other question, aside from the EGR, is there anything else I
> should turn off or change to make tuning a lot easier?  Thanks for your
> help,
>
> Ben
>
> Ben
> ----- Original Message -----
> From: Bruce <nacelp at bright.net>
> To: <gmecm at diy-efi.org>
> Sent: Sunday, September 24, 2000 6:45 PM
> Subject: Re: Idle and the idle VE table
>
>
> >
> > What does it idle like?.
> > If there was a cam change is just might need that much more extra fuel
at
> > idle.  Overlap plays havoc at idle with self EGR and that takes fuel and
> > timing to cure.   With the BL locked then it will just ractchet the Int
> > up/down to the maxs if your slightly off.  BTW, not all cars run best
with
> > 128s everywhere
> > Bruce
> >
> >
> >
> >
> > From: "Ben" <sappyse107 at gmforums.com>
> > Subject: Idle and the idle VE table
> > > For those working on the A1 code (or any other), have you figured out
> what
> > > the heck needs to be changed to get the idle BLM and INT right?  No
> matter
> > > what I change, the idle INT goes up to 156 (I have BLM locked at 128
> since
> > > everything else is reasonable now).  I have raised the idle ve table
> > > (double), with the int going to 180 still.  I have changed the spark
> table
> > > which helped but I can't go far with it.  The base VE table doesn't
> effect
> > > it either.
> > > Ben


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