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Thread: LAP VVT tuning

  1. #1
    Tuner
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    LAP VVT tuning

    2009 LAP Tuning vvt is a different from the LNF.


    I'm need helping understanding what I am looking at here.
    None of the numbers seem to be what I'm actually seeing in the log

    There is 3 tables for each intake and exhaust cam, low, med and high baro. How can I differentiate which one is doing what.
    What are the numbers in the table directly related to? Its adjustable from 0-128 degrees.

    Not much information out there on this specific engine.
    I don't want to do trial and error, just need an idea of what I am looking at.
    Last edited by Ryze; 02-27-2012 at 11:42 AM.

  2. #2
    Tuner
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    It looks very similar to the tables for the LE5 going off of what appears to be the egr areas in the tables. I had a pdf on the cam profiles for some ecotecs but im not sure where its gone off to. I don't think it had the lap though only the l61 if i recall right.
    I'll see if i can find it anyhow. It might end up being useful

    Also, while it says 0 to 128 its actually more than likely only 0 to 25 degrees possible angles of the vvt system
    Last edited by viceroykarl; 03-30-2012 at 02:40 PM.
    2006 Cobalt SS LE5 | ZZP 2.5" Downpipe | ZZP Cams | HP Tuned

  3. #3
    Tuner in Training
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    Sep 2011
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    He worked with it and got some gains out of it by trial and error. Looks like its at its peak right now. Probably will go to stock settings when i put the S/C on then rework it.

  4. #4
    Advanced Tuner silverbullet08's Avatar
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    Im working on some cam tables for a LE5 with a S/C right now. I rescaled the entire timing table since loads were different and it made a huge difference in the way the car drove. Even the LSJ timing curve was scaled different. Since i made those dramatic changes in timing im almost positive the cam timing needs to be adjusted. Il share what I come up with later.
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