Hopefully last time: LTFT
06-27-2004, 08:45 PM
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Hopefully last time: LTFT Hi Guys
I have been working on LTFT for the past month - weekends only, part time- I have received some good advice from you folks. I have one last question; everybody implies that an average of -4 is ideal but I also read from other folks that maybe a positive number is OK.
anyway: my average is B1:-2.1, B2:-0.7 with max of +2.3 & +5.5, with a min of -5.5 &-3.9 - using EFILive V6. It give you the averages, max, & min. WOT they go to "0". Should I just move on or adjust it one more time?
Thanks - appreciate the help and enjoying this tuning.
Bill
I have been working on LTFT for the past month - weekends only, part time- I have received some good advice from you folks. I have one last question; everybody implies that an average of -4 is ideal but I also read from other folks that maybe a positive number is OK.
anyway: my average is B1:-2.1, B2:-0.7 with max of +2.3 & +5.5, with a min of -5.5 &-3.9 - using EFILive V6. It give you the averages, max, & min. WOT they go to "0". Should I just move on or adjust it one more time?
Thanks - appreciate the help and enjoying this tuning.
Bill
06-28-2004, 08:18 AM
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Positive number is not OK, unless you like having
that as a variable enrichment of your WOT tune.
Like, if you had everything dead-on for 12.8:1
but had a +5% LTFT in some cell, whenever you
"stepped off" from that one you would see the
WOT mixture at 12.2:1 instead. That makes
tuning like "Whack-a-Mole".
If you have a max LTFT of +5.5 but you see 0s
at WOT, you simply haven't exercised that
particular go-to-WOT-from condition. If you try
on purpose, you might get a feel for how much
it affects your WOT output, to have the excess
enrichment, and decide whether it's bad enough
to chase. It might also indicate whether in your
particular case, more is better, or less. Figure
out which cell is the bad boy and work your
throttle transition to leave from there.
I don't believe in averages. The cells indivudually
want to be right. As close to zero as possible,
just negative enough to never pop up across
environmental variations.
that as a variable enrichment of your WOT tune.
Like, if you had everything dead-on for 12.8:1
but had a +5% LTFT in some cell, whenever you
"stepped off" from that one you would see the
WOT mixture at 12.2:1 instead. That makes
tuning like "Whack-a-Mole".
If you have a max LTFT of +5.5 but you see 0s
at WOT, you simply haven't exercised that
particular go-to-WOT-from condition. If you try
on purpose, you might get a feel for how much
it affects your WOT output, to have the excess
enrichment, and decide whether it's bad enough
to chase. It might also indicate whether in your
particular case, more is better, or less. Figure
out which cell is the bad boy and work your
throttle transition to leave from there.
I don't believe in averages. The cells indivudually
want to be right. As close to zero as possible,
just negative enough to never pop up across
environmental variations.