Fuel maps

[peter paul fenske]

Hi Mike

The table you are talking about is normally used to generate
the airmass entering the engine with V.E. factored in.
Basically Map * Rpm * VE = airmass
Then multiply this by F/A to get the fuel quantity.
Multiply the time between ignition pulses to get
injection pulse width.
Oh yes usually you have to multiply by the inverse injector 
constant too.

Hope this helps: peter

At 01:03 AM 2/14/97 EST, you wrote:
>
>I'm looking for information regarding fuel maps.
>
>I'm attempting to program an HC11 in controlling the injection system,
>and I've roughly made a 2-D fuel map consisting of RPM on the abscissa
>and the MAP sensor on the ordinate.  I assume that as engine RPM
>increases, so does air flow (fair assumption) and as MAP increases so
>does air flow (a bigger assumption).
>
>I'm looks for "rule of thumb stuff" or actual fuel maps of other engine
>AS A GUIDE.  The best way to do it is on a dyno, but I ain't got a dyno.
>
>I'd appreciate any help.  Thanks in advance
>
>