Seen the graph, informative. Best way to run an alternator less system is to decrease the draw on the battery to prevent discharge. Daytime driving would be ideal. All the vehicle needs is fuel and ignition to run with the most basic gas engine system. Seems with newer vehicles there are so many more electrically reliant systems. Takes electricity to run an ECU for the fuel pump and ignition. Wonder what the MPG difference is between a mechanically driven system vs an electrically dependent? Ya know, old school (cam driven fuel pump, carb, cam driven distributor points condensor) vs new school (fuel injection, electric fuel pump, distributorless ignition, ecu, TPS, CPS, etc)
Find and eliminate any electrical draw that isn't essential. Should extend the distance driven and life of the battery. This may include the dash display, radio, providing the least amount of draw but maximum flame front for the ignition. Wonder if a lower coil output unit, low draw plug wires, changing the spark plugs and gap would have much effect? Using a low draw fuel pump and the time it takes to prime the system. What's the least it takes to run the fuel pump and prime the injectors?
But, you seem to know what you're doing and may have already considered these factors.
VT247
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Originally Posted by MetroMPG
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