Frank B Posted January 30, 2006 Share Posted January 30, 2006 How can one use the SPFI throttle body without an ECM? What is the signal range that the injector gets? And how can that be replicated without an ECM? Don't ask me why I ask, I won't say just yet. Link to comment Share on other sites More sharing options...
85Sub4WD Posted January 30, 2006 Share Posted January 30, 2006 the short and long of it is NO I installed the SPFI system on my car - you have to synchronize timing, duration, mixture, and advances for fuel and spark all without a computer?? without an ECU of some sort (analog or digital), it can't happen without a carb and traditional distributor if you want something simple, a weber conversion is your best alternative, with a standard carbureated model distrubutor Link to comment Share on other sites More sharing options...
TomRhere Posted January 30, 2006 Share Posted January 30, 2006 But you could do this, http://www.fortunecity.com/silverstone/subaru/1/CIS/. I've seen the car run with it, and now own the Wagon it was in. To bad he kept all the goodies..... Link to comment Share on other sites More sharing options...
Frank B Posted January 30, 2006 Author Share Posted January 30, 2006 How about using fuel pressure/volume to regulate it? Provide constant voltage but vary the flow and or pressure of the fuel, then it wouldn't be much different from a carb. My thoughts were to replicate this.....not that I could. http://cgi.ebay.com/ebaymotors/CARBURETOR-DODGE-FORD-CHEVY-GMC-100-300-mpg-GASIFIER_W0QQcmdZViewItemQQcategoryZ33550QQitemZ8032802022QQrdZ1 Link to comment Share on other sites More sharing options...
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