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Thread: Auto Tune

  1. #1
    Forum tyhee Site Admin GMPX's Avatar
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    Default Auto Tune

    O.K,

    So what's this all about?.
    In the next update of EFILive you guys will be so impressed with a new Auto Tuning feature.
    This does NOT rely on LTFT data, nor do you need a spread sheet to make it work......and it even works under WOT!!.

    Let me put up a teaser.......

    This is my own car which has a smallish 218/224 @ 113LSA cam running the PCM in SD mode (MAF in garbage bin).
    I have only ever had time to tune this thing at WOT on the dyno and that was it (been too busy sitting in front of a PC).
    Now, my VE table is the stock one from the factory apart from the WOT stuff.
    All these tests and tunes were done with the PCM forced into Open Loop so I was not fighting the STFT and LTFT.

    Take a look at the last screen shot. This shows my AFR at light throttle WAY out, commanded is 14.63:1, but the WBO2 is at 12.36:1.
    The engine was pretty much running like that everywhere from idle to about 70% load, but actually also lean at some points. (Click picture for a larger view).

    So here is how I tuned this engine.
    Fit two kids into the back seat, drive 10mins to the post office to send some mail with EFILive logging in the front seat.
    Then working some EFILive magic (the blurred out PID) I simply adjusted the entire VE table (basically a 3 click operation) and flashed the new file into the car.

    Now this is NOT fudged or fiddled, but now checkout the AFR's for pretty much the same RPM and load point.
    This was done with just 10mins of driving (including sooking kids) and a few mouse clicks!!.
    (Click second picture for a larger view).

    The first picture shows the changes made to the VE table from the original VE table to the 'corrected' one.

    Hopefully should get this car onto a dyno soon to run it through all RPM and load points in the VE to map the entire thing in I would say less than 1/2hr. 8)

    Cheers,
    Ross
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  2. #2
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    F5 F5 F5 F5F5 F5F5 F5F5 F5F5 F5F5 F5F5 F5F5 F5F5 F5F5 F5 That is what i am doing you download page right now. I bet this feature is better than sex and a six pack, well close enough fromt he looks of it it looks like it is within +/-1%

  3. #3
    Lifetime Member Bruce Melton's Avatar
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    Well, I am ready to play.
    This sounds fantastic and a great alternative for those of us not capable of deciphering every nuance and making the best choices.

    Will there be a quick how to?

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
    PowrMax Performance

    100 mm PowrMAF

    LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals

  4. #4
    Forum tyhee Site Admin GMPX's Avatar
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    Before you get too excited, two things are needed......

    1 - A WBO2.
    2 - MAF in garbage bin (or unplugged anyway).

    This only works in Speed Density mode.
    With this release will also be the availibilty of our modded O.S's that allow the twin spark maps (and more) when Mafless.
    This will require a full flash (which means a commercial or workshop license).

    Cheers,
    Ross

  5. #5
    Forum tyhee Site Admin GMPX's Avatar
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    Quote Originally Posted by Bruce Melton
    Will there be a quick how to?
    Yes for sure, because there is some pretty fancy stuff that can be setup to ensure you only want to manipulate the VE table with valid readings.

    Cheers,
    Ross

  6. #6
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    If i want the twin spark maps for SD tuning do we have the optiion to select 1 or 2 bar or is it just 2 bar only

  7. #7
    Forum tyhee Site Admin GMPX's Avatar
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    Quote Originally Posted by Dirk Diggler
    If i want the twin spark maps for SD tuning do we have the optiion to select 1 or 2 bar or is it just 2 bar only
    Twin maps will be for 1 or 2 bar.
    Though our 2bar program is undergoing testing for the moment.

    Cheers,
    Ross

  8. #8
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    great. my maf is allready in the garbage and I am not running any boost

  9. #9
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    Quote Originally Posted by Dirk Diggler
    great. my maf is allready in the garbage and I am not running any boost
    Yippie Dirk, spread the word, the garbage is the best place for it.

    Cheers,
    Ross

  10. #10
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    Ive been running mafless for about a year now. Got some silicone hose 4" a 85 mm lid, a fast 90/ nick williams 90 and havent looked back.

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