Direction

[Jim Conforti]

If everyone is *serious* about doing this, then I would suggest that you
take Rod's advice and begin with an ignition controller FIRST ..

Learn how to interface the uC stuff w/ the engine!!

Having worked with Rod on reversing some Bosch stuff, I can tell you that
a full blown SEFI system is MUCH more complex than you wish to deal with 
for a first project .. too many darn variables to do it RIGHT ..

Now some input:

1) Devise the controller software around TWO possible algorithms ... 

   a) Speed/Density .. aka TPS,MAT,MAF .. and

   b) Measured Air .. aka Airflow or Airmass sensors ..

   reason: The norm-aspirated "std." engine guys can use the Measured Air
           better with stock setups, the "turbo" and "multi-butterfly"
           guys will want the speed/density stuff ..

2) Decide on how many different trigger setups are allowable ..

   a) Missing Tooth
  
   b) Added Tooth and 2 sensor systems

   c) Cam sensor, distrib sensor, or #n coil wire sensor (for bank position)


3) Consider your coil output .. may I suggest DUAL-PLUG coils .. that way
   a 4 output system will handle a V-8 ..


4) Once you have all this down and LISTED somewhere ..

   
    THEN YOU CAN TALK ABOUT the ALGORITHMS to RUN IT!

  
   Jim Conforti
   <jec at us.dynix.com>