1227730 with 2 bar Map?

[Dan Townsend]

Cool.  Looks like I found something to do at work tomorrow.  This is only a
temporary fix.  I'll get something else after a while.  Just wanna see how
this works first.

DanT

----- Original Message -----
From: "Bob Wooten" <r71chevy at earthlink.net>
To: <gmecm at diy-efi.org>
Sent: Thursday, February 22, 2001 10:49 PM
Subject: RE: 1227730 with 2 bar Map?


>
> I have been thinking about this as well   don't see any reason why this
> would not work.  if 0-5vdc was 0-1 bar is is not 0-2 bar.  this means
> though that you would have to redo all tables that have reference to
vacuum
> (  now pressure)   the resolution of the sensor is now going to be 1/2
> of what it was.  the only reason to mention this would be if you had a
lump
> cam   it was going to be hard to tune in the first place.  I think that
> i have convinced myself that for the next car that i am just going to goto
a CPU
> that has the accommodation for the 2 or 3 bar sensor built in   tweak from
> there.  I think that this would probably reduce the frustration.
>
>
>
> FWIW
>
> BW
>
>
> ----- Original Message -----
>
> From: Dan
> Townsend
>
> To: gmecm at diy-efi.org
>
> Sent: 2/22/01 7:15:57 PM
>
> Subject: 1227730 with 2 bar Map?
>
>
>
>
>
> So I was curious and started reading what a 2 bar Map
> does.  Basically you
>
> get the same voltage as a 1 bar Map but the readings are actually
> double.
>
> So what would keep me from using a 2 bar Map but with the 730 ECM and
> 730
>
> code but tune what the computer now sees as 50 KpA to actually be the
> real
>
> 100 KpA.  This would allow me to tune the setup to up to 14.7 lbs
> of boost.
>
> Does this sound like I'm on the right track?  The only thing left
> is doing
>
> the VE tables and spark Map.  This would leave me with all the
> functionality
>
> as before.
>
>
>
> Would I be better to drop what the computer thinks the injectors are so
> I
>
> could keep away from 100+ % VE tables or would it work better to make
> it
>
> think the engine is a 11.4 L or something like that?
>
>
>
> DanT - Is this a good idea or time for me to put on the
> CSH?  :-)
>
>
>
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>
>
>
>
>
>
>
> --- Bob Wooten
>
> --- r71chevy at earthlink.net
>
> --- www.r71camaro.homestead.com
>
>
>

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