![]() I understand getting them close but in your Hi Octane and Base Idle it's 10 degrees different. I looked over the timing and it seems to be in defiance of the tuning guide in the matching of the tables. I am understanding the fueling better and I will work on that first. On the compare my first question is why the engine size difference? Final airflow table nothing after 100 rpm's? I think comparing your changes to your stock will tell me a lot. I have compared a lot of tunes but never got it. The recent change in my Stoich value to compensate for the E-10 fuel in our area made a huge difference. I firmly believe the fueling is at the heart of my problems I am having. I'll start this procedure with a fresh stock tune although the car will barely run on it. I think the tune I have loaded is probably fairly jacked at this point with all the changes. It's only taken a year so far to get to where I am. With some of these write ups I am getting better. Would just turning off Closed Loop in the scanner accomplish the same thing? Also does Closed loop in the scanner As well as Fuel Trim Learn, work the same in that if you turn it ON it's really OFF or does that only apply to the Adaptive Idle on/off? Do I smooth that transition?Īlso I start at this values then work on my Fueling? I have Bill's config and I see where I need to disable LTFT's and Closed Loop to stay in OPEN LOOP during the logging sessions. That will leave me a big jump into the next cells beyond idle. Do I input this timing amount from my Base Idle into the Hi and Lo Octane and Base Idle coast down table in the idle range of those tables as well. In the guild you talk about the timing matching in the various tables and say a cam of this approx size should be able to run a base Idle Spark advance timing of around 19 degrees. The cam is roughly 225 lift/duration, around 112 113 LSA. I am going to apply all I can from the tuning doc to my 08 Vette A6 480 Hot Cam crate motor. ![]() Hey Guys I need a little help understanding the fueling and timing as suggested in this thread and in the LS2 tuning doc that’s posting. Noted, added a little change in the guide at 4:30PM EST, so download it again if you already did. I've also uploaded some config files as well. this one is free, but it won't allow you to make changes, just to view,print and copy word documents: You'll need MS Word to open up the file, if you don't have MS Word installed in your PC/Laptop, you can download and install the MS Word viewer. hptĭownload the file, rename the extension to. to post it, i've renamed the extension from. You can tune anything newest than E40 with it, MAF wise, VE have to be done with the Ve calc which can be found here: ĭownload LS2 Tuning Guide 01262010.hpt, The file is 2mb and change. it's still very basic, but i tried to add a little bit more content to it, i'm sure i'll add more as needed. I've modified some of the content, and tuned my Ls2 GTO with it. This Doco came from the LS2 basic tuning guide that can be found in the stickys'.
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