Injector pulse width

[Bruce Melton]

I am fighting to run my SVO 42s at idle and low RPM. Am using RHS IFR which seems to be ok except I go to way lean ~16-18 and worse"lean" (PLX) if it idles more more than 15 seconds. Can't seem to ever give it enough VE at idle. Still fooling with MAF but:
My min pulse width is set stock to 1.26ms and I see from log data a min of .305. Is that as obvious as the injector is going sub allowed PW and starving the cyl?
If so what would you do?
I am thinking of opening up IFR down low or reducing min pulse width.
As always, seeking good direction,
Thanks
Bruce

[Redline Motorsports]

I think the B4003 and B4004 should be reduced. I usually reduce it by 50%. The larger injectors are a bit lazy at low pulse widths I think due to the size of the windings and weight that physically needs to be pulsed. Grab a set of 96 lbs'ers. They feel like a roll of quarters!

Good topic that can use some more views.

Howard

[TAQuickness]

Bruce - I've found my SVO42's don't give a reliable squirt below 1.79xxx MS. I usually hit this condition during non-DFCO decel. I ended up setting the lower injector pulse limit's around this time and adding about .1 ms for a low pulse width.

Now instead of dangerously lean, I'm a little fat in those areas.

[Bruce Melton]

1004

I tried to lay out the stock values above which are the ones I am using-
Could you be more specific?
Thanks,

[TAQuickness]

pm sent

[SSpdDmon]

pm sent
Can u forward this pm to me too? I've got some 30's that I'll be dialing soon...