1-bar to 2-bar conversion

[Programmer]

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.



----- Original Message -----
From: "Toby Corkindale" <tjcorkin at sa.pracom.com.au>
To: <gmecm at diy-efi.org>
Sent: Wednesday, September 12, 2001 7:10 PM
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
>
> --------------------------------------------------------------------------
--
> To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> in the body of a message (not the subject) to majordomo at lists.diy-efi.org
>
>

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org