VMAP4 to Bosch PT graph confusion

[Ben Swann]

Dan,

I was in fact looking for  absolute pressure vs. voltage graph, but haven't
been able to locate this information on any of the Bosch Pressure
tranducers.

If anyone has this information or a link to it, I'd appreciate it.

Ben
----- Original Message ----- 
From: "Dan Cordon" <cord4530 at uidaho.edu>
To: "Quattro List" <quattro at audifans.com>; "Ben Swann"
<benswann at comcast.net>
Sent: Thursday, January 29, 2004 12:58 PM
Subject: RE: VMAP4 to Bosch PT graph confusion


> > I am confused by these graphs for VMAP comparison to Bosch?
> >
> > http://members.cox.net/urs6/VMAP4.features.htm
> >
> > The are supposedly comparing to Bosch sensors.
> >
> > I would be expecting voltage vs. abs. pressure, but both axis show
volttage.
> >
> > Can some of the enlightened clue me in?
> >
> > TIA
> >
> > Ben
>
> It looks to me that these charts are comparing the output of three
> common sensors to that of the VMAP4. So, say you already have a great
> fuel map based on a Bosch 2.5 bar sensor, and want to install a VMAP4 at
> 3.1 bar. You'd have to adjust the values of your current map  by the
> difference noted in the yellow line on the bottom chart.
>
> But for those of us who may start out with a VMAP4 from scratch, having
> the voltage output vs. abs pressure would be nice to have. I'm sure it's
> out there though.
>
> Once I sort through my 200 20v, I may look at these instead of the now
> rare Bosch sensors.
>
> -- 
> Dan Cordon
> Mechanical Engineer
> University of Idaho - Engine Research Facility
>
>
>