555 EFI

[Bill the arcstarter]

rauscher at icst.com wrote:

>Ya know' thinking about this, it just may work. Trigger the
>555 from the distributor, divided by whatever to fire the
>injectors the number of times per rev.
>
>Drive pin 5 (labeled 'control voltage' in the NS data book), from
>a summing junction that has as input:
>
>    change in TPS (open more, short duration)
>    RPM
>    MAP
>    CTS
>
>The only real downside, would be the VE. You would need to build
>a non-linear function into the RPM/MAP areas.

That's the trick.  I think that the injection duration is a rather 
nonlinear function of all these variables.  Building an electronics pack 
to properly "stir" them together might be very challenging.  

Personally I'd go PIC/AVR with a multichannel A to D converter! :)

-Bill

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