1-bar to 2-bar conversion

Bruce nacelp at bright.net
Wed Sep 13 14:50:35 GMT 2000



Kalmaker does, just takes $$$$$$
Bruce



From: "Programmer" <nwester at eidnet.org>
Subject: Re: 1-bar to 2-bar conversion
> I think someone from "down under" has done this already runnin' a two bar
> map using an '808. You might want to do an archive check for the details,
or
> do some web searching...I'd either run a 1227148 turbo Buick (never tried
> it), 1227749 turbo SYTY, or turbo fiero code...
> I've done a '7747 with 5 psi boost using 2 90 lb injectors, but that was
all
> tuned on a dyno, no FMU with a 1 bar MAP...
> Lyndon.

> From: "Toby Corkindale" tjcorkin at sa.pracom.com.au
> Subject: 1-bar to 2-bar conversion
> > Hi all,
> > I'm currently running one of my cars, a Holden VN Commodore, on a
modified
> > and supercharged V6 engine.
> > The engine's the australian version of a buick engine, 3.8 litre, and
runs
> > with a Delco '808 (i think thats right?) using MAP and DFI.
> >
> > It was tuned up originally to use the stock 1-bar map sensor, but
> obviously
> > this isn't ideal given the blower!
> >
> > I am interested into getting into reprogramming and tuning the car
myself,
> > and i'm fairly cluey when it comes to working stuff out, so I thought
it'd
> > be worth a try.
> >
> > I understand that major tunes are best done by professsionals, but i'd
> like
> > to be able to make tweaks and stuff myself. Anyway, I don't know if its
> > practical, but I'd like to try and get a 2-bar setup for my car.
> >
> > I have the sensor, but i'll need to remap the ECM settings; i have
assumed
> > that i'd be able to take the existing settings, and interpolate from
them
> to
> > a 2-bar version.. Do you think this is practical?
> >
> > Apparently the existing setup I have (which was done professionally,
> > although i wasn't really satisfied with it) basically just guesses at
> > whether or not its under boost based on whether the map sensor has been
> > maxed out, and then dumps fuel based on rpm. (since rpm is proportional
to
> > boost..)
> > ick. doesn't sound right to me.
> >
> >
> > Anyway, what do you think my chances are, with a laptop, eeprom writer
and
> > an ALDL cable?
> > Would anyone know where i could find an appropriate memcal definition
> file,
> > and/or an example memcal bin set up for a 2bar map sensor?
> >
> >
> > Thanks,
> >
> > Toby


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