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Thread: Need help starting with fresh Cust OS & tuning right way for 2Bar Speed Density

  1. #1
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    Default Need help starting with fresh Cust OS & tuning right way for 2Bar Speed Density

    So, I have a my car running decently but I did it by adjusting the VE tables.

    I just got my car back up and running (it's been sitting close to 4 or 5 years). I want to tune the right way.
    I have a 2009 Z06 block with Darton Sleeves, bored 30 over and stroked 4.125 making about 447 CID.
    I put in Injector Dynamics 1050x injectors, and programmed the injector data into the appropriate tables. They idle beautifully.

    The car makes great power, though I haven't leaned into WOT because it's still lean at near WOT.

    I took a 2002 Camaro (Auto Trans) calibration (12212156) and used the Custom OS documentation to put it into recommended OS. (I have a 2-Bar MAP Sensor installed and rewired 1998 to 1999+ PCM)

    I decided to try to start from scratch, once I thought I understood how I SHOULD approach the tuning (AutoVE first to get true Air Density, then use {B3647} Commanded Fuel vs RPM (Normal) to define the commanded fuel?) Is this correct?

    (I am Running Speed Density)

    My problem when I try to start from scratch, going Step by Step through the Custom OS Setup, the car won't crank... it turns over once then dies. I know it has something to do with fueling.
    (The Calibration I try to start with has new CID modified from 12212156 and the Transmission and Speedometer tables, fans speeds... stuff like that, modified.

    Attached is the Calibration I tried to re-start with.
    Last edited by Black LS1 T/A; May 24th, 2023 at 06:52 AM. Reason: Incorrect Calibration Attached
    I'd rather be blown, bored... AND stroked!
    Now: 447 CID (Corvette 427) , ATI Procharger D-1SC Supercharger

  2. #2
    Lifetime Member Tre-Cool's Avatar
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    In Efilive 7.5 editor go to Help - Tutorials - AutoVE Tuning.

    Read up. It should make a lot more sense on how to tune your fuel map.

  3. #3
    Joe (Moderator) joecar's Avatar
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    B3647 = commanded fuel for COS
    B3605 = commanded fuel for original OS.

  4. #4
    Joe (Moderator) joecar's Avatar
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    +1 see AutoVE tutorial.

  5. #5
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    Thanks, guys. I've used the AutoVE to tune in the fuel map for the currently running calibration.

    Are you saying I missed something in the document that would help me get the car running if it won't stay started?
    I'd rather be blown, bored... AND stroked!
    Now: 447 CID (Corvette 427) , ATI Procharger D-1SC Supercharger

  6. #6
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    Quote Originally Posted by joecar View Post
    B3647 = commanded fuel for COS
    B3605 = commanded fuel for original OS.
    Thank you! This is the simple, straightforward statement I've been looking for in all the posts that mention it.
    I'd rather be blown, bored... AND stroked!
    Now: 447 CID (Corvette 427) , ATI Procharger D-1SC Supercharger

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