EFI University

[Revolution Motorsports]

If your using the same size pri and sec injector would the largest value you should use in the fuel Dif map be 50? Would that bring both pri and secondary to 100% duty cycle if you maxed them out?

[nutz]

the value in these cells represent how much the secondaries are contributing to the final pulse with, a value of 0 will make the primaries do all the work, a value of 50 will split the pulse with evenly between both injectors. a good way to set it up if you plan on useing a total value of both injectors for final fueling requirements is start out in low load with a value of 0 (so the primaries have plenty of time for a good spray) then when moving up the load values where your primaries hit about 50% duty cycle (duty cycle not the cell value) start to add in the secondaries gradually untill at your top load line is around 50
unless you want to use the secondaries for total fueling in high load never go passed 50

some very high output cars useing alchol need the primaries only for idle as the secondaries are much to large to manage that small of a pulse with (mucho dead time)

[Revolution]

Thanks for confirming that for me.