Took an SD log, the trims are pretty close to 0, (with the exception of cells under 100 count showing)
Here's a question, if the car feels sluggish is there any point going to dial in MAF?
Or does it make more sense to now start adjusting timing, and fueling in SD to get the car where I like, then bring that timing table over to MAF and tune that?
How did I do an 18 minute drive and not go above 3000 rpm lol, issue of an unnecessarily loud exhaust where you think you're going faster than you are.
Thank you I'll get an updated log tomorrow and setup the histogram for spark advance using cylinder airmass so I can reference the timing table directly for adjustments
I'm assuming these injection timing values are generated by some calculations? Mind if I ask what tool you used (if any), I see a spreadsheet but can't find all the data that I need to input it, just double checking the values so I can help myself later, I would assume the b-body LT1 and f-body LT1s will have different value sets.
Okay so I took a much longer run but living in the city I can't get as much data above 4k rpm as I need to sit in it to get the cell count, problem is with a straight pipe setup its obnoxious, I plan on getting a better exhaust system but stuck with this for now.
Problem is now I don't really have any experience adjusting timing, I know the table is conservative but exactly where would I be adding spark back in and how much. And once I add that timing in I assume I would also go back into the VE table and add fueling to those areas right, is there like a rule of thumb on timing advance vs fuel addage?
I'm not aiming for more than stock timing since I don't have my KRs enabled so I can't tell if its knock, but I would assume if the table is just being restored to values the LT1 likes then it shouldn't be a problem
Yea unfortunately, I'd have to dedicate a couple of hours to go out of the city and find some back stretches.
Feel like at that point it's probably just worth to pay for some dyno time.
Guess there isn't much I can adjust for in the lower half of the table? I feel like there's some pep in the step still missing, but the LT1 timing tables I've seen actually have less advance than what this base file has, so not sure what I can do there.
In the meantime I'll adjust the lower half for MAF and then figure out a solution for the higher rpm values
I realize that the values shown in in my tables have values pulled from the modifiers but it still doesn't matter since I'm replacing the base value. The only question is in terms of spark modifiers is how hp tuners vs tunerpro does it and adjust those also. But to start with, get the timing table exactly stock.
Well this is an interesting one, just to preface i'm only talking about idle and cruising speeds right now
I decided to just port over the timing tables from another file that I had of a car with similar setup to mines. His car was dynoed but the settings of his file were pretty much stock LS1 stuff
Immediately noticed a pretty good improvement in idle and throttle response, the odd part is, my VE settings weren't even touched but the trims are within -5/+5, I tried to port over his VE table and the car would barely run.
So I think I'll use this timing setup as a base, clean up the VE a bit more, do MAF for idle/cruise. Then get out of the city and tune for the higher end.
I guess the biggest issue right now is cruising and gear shifting. Feel like there's a slight stumble preventing me from having smooth shifts, on throttle it's fine but especially just coasting it's not the greatest, not sure what to look into for that
Last edited by toonwarrior; 2 Weeks Ago at 06:53 PM.
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