Secondary Multiplier
Posted: Tue Feb 14, 2017 8:39 pm
When you're running a second set of injectors the Secondary Multiplier parameter under Run Mode Fueling / Corrections / Secondary Multiplier is set to the primary injector flow rate divided by the secondary flow rate. Here's my concern.
If I'm currently running a setting of 1.2 with 550cc injectors and I'm planning to switch to 1000cc injectors I realize that a setting of .55 - .72 is probably what would be after in order to keep the current fuel tables the same. Isn't doing this going to essentially limit my secondary injectors though?
If the Secondary Multiplier is what's used to modify the pulse width sent the secondary injectors, by lowering it from the current 1.2 to .55 - .72, aren't I essentially making the 1000s behave like 550s based on the pulse width? Guess why I wouldn't just leave the Secondary Multiplier where it currently is (or slightly lower it to say 1) and then retune the portions of the fuel table where the secondary injectors are active.
This would allow the larger injectors to flow more fuel given the same pulse width which is what I'm after by switching to them in the first place no?
If I'm currently running a setting of 1.2 with 550cc injectors and I'm planning to switch to 1000cc injectors I realize that a setting of .55 - .72 is probably what would be after in order to keep the current fuel tables the same. Isn't doing this going to essentially limit my secondary injectors though?
If the Secondary Multiplier is what's used to modify the pulse width sent the secondary injectors, by lowering it from the current 1.2 to .55 - .72, aren't I essentially making the 1000s behave like 550s based on the pulse width? Guess why I wouldn't just leave the Secondary Multiplier where it currently is (or slightly lower it to say 1) and then retune the portions of the fuel table where the secondary injectors are active.
This would allow the larger injectors to flow more fuel given the same pulse width which is what I'm after by switching to them in the first place no?