turbo scaling

[Programmer]

Really--for any code, Bruce. I did a '7747 with no FMU and an underhood
supercharger. Worked quite well with the BBC injectors with a lot of
re-scaling.
The boost was only 4.5 PSI at WOT, so it wasn't a big deal...but, the stock
injectors
just couldn't keep up. Just kinda curious if it's the same
issue throughout. Have also tuned underhood centrifugal chargers with FMU's
with
mixed results...kinda hard to tune fuel when the customer changes your
fueling with
a turn of a screw...

Lyndon


----- Original Message -----
From: Bruce <nacelp at bright.net>
To: <gmecm at diy-efi.org>
Sent: Saturday, July 28, 2001 10:57 AM
Subject: Re: turbo scaling


>
> For what code?.
> Some do a Baro calc at start up, and then again as you enter PE.
> You also lose lots of resolution.  Would be neater to expand the tables to
> match.
> The syclone guys have a 3 bar calibration.  I saw a 2 bar 808 but all they
> did was disable the diagnostic flags.  So **it** can be done.
> Bruce
>
> From: "Programmer" <nwester at eidnet.org>
> Subject: turbo scaling
>
> > I'm no software guru, but is the code as simple/complex as this ?
> > 1. Rescale the MAP table to 200 kPa (probably the toughest).
> > 2. Change trouble code "MAP" settings,
> > 3. Rescale fuel tables to match high MAP (again--a tougher item)
> > 4. Rescale timing table for high boost MAP ?? Pull timing for upper VE
> table
> > ?
> > Lyndon
>
>
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