So i have an 04 reg cab silverado and i have a 5.3 Gen 3 block with Gen 4 rods and Gen 4 flat top pistons and a sloppy stage 2 cam . CAI Longtubes Nbs intake and 32 lb injectors .
It has 4l60 with corvette servo . Also i have 3.73 gears and a set of caltracs.
A friend and i have done some tunning and at a 20 roll i thought it woild light the tires up but it just goes. So my question is would the caltracs cuase it to have such good traction or is the truck slow. lol
Need data logs to really see what is going on.
Who's injectors are they?
Something to me is off with the injector data or fuel pressure if your VE table is inflated like that. You should never have values over 100 with larger injectors like that. Rims and tires play a roll in tire spin as well as gear ratio. Honestly this thing isn't making that much horsepower to just lite up the tires unless they were probably bald.
Your PE is really delayed too. Lower the pedal enable to 65% and lower the enable torque to 50%. Raise the MAP kpa to 80kpa.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
The injectors are stock number 12680861 .Originally Posted by 5FDP
Thats a run i did last night . lmk what you think thanks
Holy jesus look at those fuel trims lol. No wonder you have problems, look at those things adding 30% worth of fuel for so much of that log.
It's stupid lean per the o2 sensors at full throttle too, the o2 sensors drop out to 50mv meaning there is no fuel. I'd also be looking for exhaust leaks or vacuum leaks with how bad those trims are.
Did you get the injector data for those injectors?
What is your fuel pressure?
Are you using a wideband to tune this like you should be?
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
no im not using a wideband im out of work right now and i had everything to finish truck , So i dont have funds to buy the wideband right now.
im not sure what was the fuel pressure .
I have the stock data for injectors.
Fuel injector data wasn't entirely correct.
https://forum.hptuners.com/showthrea...l=1#post766924
4L60E has a 6000 rpm design limit. Torque truncation was disabled. You aren't gaining anything here other than broken parts. TCC torque limit table maxed out, shift lock enabled, and no torque truncation for shifts. That's bad bad.
Same goes for the knock sensor settings. Be careful.
Base Spark map adjusted.
CL enabled. Set to STFT only. Use your narrowbands to tune.
Few other suggestions included. It's set to SD. Post a log if you don't mind.
Last edited by SiriusC1024; 02-17-2024 at 01:14 AM.
You can use the fuel trims to dial in your fueling up to a certain point. Use them to calibrate the MAF curve and VE table. Wideband for WOT and PE tuning.
"I don't care how it runs as long as it chop chops at idle"
I will upload a log in a few do you want wide open or just cruising .
Don't do wide open. Cruising max 3500 rpm.
[QUOTE=SiriusC1024;768552]Don't do wide open. Cruising max 3500 rpm.[/QUOTE
ok will do . Thanks
[QUOTE=Jamescorbett;768554]Ok so i ran this . Let me what you think . It showed a p103 on which i think is mass air flow , It did try to cut off one time.
Here is an updated file. This should get you idling better and get the ve closer.
P0103 is good. I set it like that. It means MAF is failed to enable SD so that VE can be tuned.
Alright take it up higher in the RPM's. 75% load.
Start logging Cylinder Airmass and Spark Retard.
Actually, do a log like you just did with the new tune, and include those channels. Let's check KR before loading it up more.
sorry i forgot to add the channels and i did a run and the computer lost connection some how . So i had to go down a different road (lol) and do another run . I have flowmaster and this truck is some what loud .
Last edited by Jamescorbett; 02-17-2024 at 06:24 PM. Reason: forgot
Move to this.
Might want to borrow the spark and idle tables from the file i posted. I find it easier/more accurate to flatline the eq ratio to something 1.17-1.21 during wideband tuning when you get that far.
Here is a eoit spreadsheet for that cam.
I tried to find spark retard in the channels but im new at this and all i see is stuff for knock retard .
I will run this in morning and post a Data Log for you thanks so much it is alot better .
Reply With Quote