Recently installed the kit on the truck and have it up and running but when I get into the throttle it goes lean when it starts to spool.. Im new to tuning I am currently running it speed density only and trying to dial in my VVE table I've added and added to the vve but it seems no matter what I do I cant get it to add fuel under heavy throttle. I have tried even enabling PE sooner and faster with no luck. attached is a decent driving log from todaylog13 07-30-23.hpl
Last edited by thenumber1z; 07-30-2023 at 05:58 PM.
Post the tune.
Also, what injectors are you using. What MAP sensor are you using?
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.
L9H flex fuel injectorsOriginally Posted by 5FDP
ls9 3 bar map
attached tune SD STEP 2.8 moved zone.hpt
VVE.jpg
If that's your VVE I think I found the problem.
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To simplify the initial setup of things find a ctsv or zl1 file and copy the dynamic map and rpm boundaries along with the VE coefficients from it then start over from there. At least you'll be starting with a boosted layout at that point. Make sure injector and map data is correct too and you're logging correctly for the VE tables new layout.
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
currently yes
Thanks for the advice. let me see if I can find one
I think I just realized I never updated my graph when I swapped my Map to add past 105kpa
soooo i did this and it made the truck run 1000x better. Eq error is way closer now. No more lean issues at wot, just gotta dial it in!!!! Thank you so so much!
No problem. Those boundary changes should help you dial things in better while in boost too. Just in case - to look at the VVE table in 2bar format just click on the Manifold Air Pressure (title word on the left of the table) and then click on the blank bar and then select the middle row. This will change the VVE table to a 2 bar format.
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
For sure, I knew that I just couldn't get my stock map to build for boost! I never thought of doing it this way. It got into boost no issues up to 12psi I just need to set the boost controller now and dial in the table! Was nice to finally get it into boost without issue!
Not sure how you can miss that when you said this vvv.....
When tuning in SD, first thing you have to do is setup the VVE table past 105 Kpa. Because of the shape of the table yours was actually pulling fuel back out as it increased in boost.
Little quick tip for anyone reading, when setting up one of these from scratch you can copy the 105 Kpa row, paste it to the 210 row, multiply that row by 1.2-1.3, highlight your rows from 105 to 210 then interpolate that portion of the table. That will at least give you something you can work from. This is assuming your lower VVE including the 105 Kpa row is fairly accurate.
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