Playing around with injection timing on my ms3.
It's set at 360 from factory.
What gains can be had?
I can see change at idle as that's easy to monitor but should I be aiming for more rpm.. More vacuum or leaner/richer afr?
Playing around with injection timing on my ms3.
It's set at 360 from factory.
What gains can be had?
I can see change at idle as that's easy to monitor but should I be aiming for more rpm.. More vacuum or leaner/richer afr?
On a port injected engine there isn't much improvement to be had outside of improving efficiency, emissions and idle quality. As a rule of thumb, finishing the injection somewhere near the time that the intake valve starts to open is reasonable.
What he said. As engine load goes up and fuel needs increase the injector duty cycle increases. On some engines at full throttle that may mean near 100%!
I wacked 400 in across the entire injector timing table and it pulled fuel pretty much everywhere.
Red areas are where it pulled fuel.
I use an injector timing table based on this one with 4 squirts per cycle:
It works OK. No major difference in AFRs from the stock setting of 360deg everywhere.
In reply to GameboyRMH :
With 4 squirts per cycle, the injection timing is doing almost nothing anyway.
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