Will someone please look at my log and give me a few pointers, Im very new to tuning and hp tuners. truck is an 07 Silverado classic with an LQ9/4L60e, it also has shorty headers, cold air intake and an fti 2800 stall conv.2009 Chevy Silverado LTFT Cruise Log.hpl
Originally Posted by Eikermannm
Your fuel trims look good. With the headers I would try to slow down the oscillation they are switching rather quickly and the shift points need to be raised the truck looks like its shifting a little to soon. Does the truck still have converters?
And the truck has a 6 speed 6l80 transmission with the stock tune there is alot that needs to be done. At 4000 rpm you have not entered power enrichment yet so there is alot that needs to be addressed to make more power out of the truck. It will probably need a bit more fuel at wot with the headers and if you deleted the cats but you wont know unless you have a wideband.
the log is for a 09 truck
Posting the tune would help
"I don't care how it runs as long as it chop chops at idle"
you should post it it in the right section and youll get more help
taylors new tunes 1=3.hpt this is a copy of the current tune
what section should I use?
Man I'm not sure what happened but I do not think that is the correct log file for my truck, its my sons truck and it is a 07 Silverado classic. It was originally a 4.8 truck but someone swapped a 6.0 in to it with a 4L60e, when we first bought it was running on the stock 4.8 tune. it does still have the cats but they have been hollowed out.Yes i definitely want to get a wideband but im still learning and researching which one would be the best for me,
You don't need a wideband for such a basic vehicle. As long as in PE the narrowbands are 900ish mv you'll be fine. No need to get picky on this one.
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I'm sorry I'm looking for the correct log file now. For some reason I'm having trouble finding it now and I'm out of town working till Friday so it might be then when I get home, and I will make another one. For the tune on his truck I figured since it is an LQ9/4L60e swap and I have a 06 Silverado SS that has been professionally tuned I just tried to copy over allot of my stuff to his for a starting point.
The MAF curve is sloppy, VE table needs tuned, Spark seems a little high, but depending on the fuel used it might like it just fine. Flex fuel is disabled but your stoich table is still set up for flex. Id make some minor PE changes, but again, thats just my preference. Also, Turn your LTFTs back on. Tune it using LTFT+STFT for the non WOT/PE stuff. It could use some fine tuning but overall its not a terrible tune. Heres a few changes i made. If youre going to make a air model adjustments you should disable DFCO while doing it, I did not disable it in the tune but changed the things i mentioned other than timing. If youre getting knock then id switch to stock LQ9 timing tables. I also did not change flex/stoich settings. Do a compare and youll figure it out lol
"I don't care how it runs as long as it chop chops at idle"
ok thank you,Ii will try it tomorrow and do a log
taylors log 3-25.hpl sorry it has taken me a little while to get another data log, but here it is. Its my sons truck and we had to put another 4l60e in it, smh were on the 3rd on now lol.
Ya think maybe that has something to do with the fact that you've disabled torque truncation for shifts, run too high line pressure, and removed the torque limits for the torque converter?
Possibly where do I find those in the trans tune and what line pressure do y?all recommend
Load the stock transmission settings and go from there. This includes Engine>Torque Management>Spark Retard>vs. Torque Reduction and >Maximum Torque>vs. RPM.
Latest tune revision
taylor log 4-14.hpl newest log
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