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Like the title says I cant figure out what is causing my hard hitting power at right around 2100 rpm. Its really annoying because it is right when Im getting ready to shift gears. I have tried smoothing tq management to no help. Im currently away from my laptop top so I dont have a log or tune to post just yet. But will as soon as I can
Without a tune and log file and information of the vehicle like the build of it, it's as mysterious as what came before the big bang.
Well my laptop crashed so I was finally able to start over here are the log and tune. You can see that its jumping from 90mm3 to 120mm3 right where that hard hitting power comes in. I must be over looking something because I cant find it.
Attachment 106324Attachment 106325
There is no mention of what?s been done to the truck but if stock, pretty wild timing at full fueling in the upper rpm. I?m not seeing it randomly jumping from 90mm3 to 120mm3 right before you shift. You are hitting boost/fueling and air density limiters and it?s pulling back fueling before you even begin to let off the throttle to shift. You are hitting a bunch of limiters and you are pulling such high fueling at such low throttle once in 6th gear.
Sorry. Yes its 100% stock minus a fass lift pump and 62mm tater built turbo. In my log I found a spot where it jumps from 90mm3 to 120mm3 at like 1950rpm then it goes straight to 2300 rpm all at the same 28 or so % throttle.
What?s the time stamp where it occurs?
Looks like 11:52:42.705. Or 13.832 and it jumps at 13.952
Also at 17.672 it jumps from 97.9 to 136.1mm3
I think you need to look at the chart vs. time and not pay attention to what the channels section is telling you... I do not see where it makes a clear jump from 97.9mm3 to 136.1mm3...Quote:
Originally Posted by 94heritage
Attachment 106332
Now that I look at the graphed data instead of the total fuel rate you are correct its a smooth transition. Do you have any thoughts as to why it would act the way it is?
Your fuel limiter tables
So I have adjusted all of the limiters so that it goes full fuel higher up in the rpm range and smoothed inbetween but it still gets to a point to where it fuels really hard. It seems like I can not just get a good smooth transition. Any ideas? New log and tune attached Attachment 106357Attachment 106358
Master fuel correction reason is telling you some of the limiters you are still hitting. BLF--Baro etc... But the limiters are probably saving you from yourself :D
Your timing map is more than likely too aggressive in how you're transitioning. I would go back to stock and make a good driving optimized stock tune and work up from there.
Agreed. Some pretty out there stuff in that tune. There?s lots of decent examples on this forum to look at. As stated above, start from stock and make one change at a time.