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Thread: I can't seem to lean her out.

  1. #1
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    I can't seem to lean her out.

    Ok, I am running the 2Bar SD for the 98's. I have my commanded AFR at 1.13 across the board and am still getting like 11.7 to 12.0:1 AFR's on the wideband. My VE table is at zero at WOT (was positive and kept adding till it zeroed out). Now I have values in the 115 range in 100 Kpa cells over 3K RPM. Any ideas?
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

  2. #2
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    post your new file please and a log file if you have one with the wideband integrated...also make sure your logging commanded afr in the scanner.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  3. #3
    Advanced Tuner Dragman's Avatar
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    Is COT disabled??

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    COT is disabled. I dont have the EIO and have not wired up the WB for logging using one of the other work around methods. I was just reading the digital display at WOT on the LM1.
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

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    can you at least post your bin/hpt file?
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  6. #6
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    I'll get it up this evening when I get home.
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

  7. #7
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    Here is the tune.
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

  8. #8
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    im assuming you've completely removed the maf er...?
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

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    I have to question how accurate your VE table actually is at this point I would think it would be much lower towards the upper cells.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  10. #10
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    also your ifr table is setup for ~70lb injectors...i thought you were still running stock 28lbers? Very very questionable tune right now man...you might want to consider starting over and attacking your combination again with a clean slate, but thats me.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  11. #11
    Tuning Addict WS6FirebirdTA00's Avatar
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    can you post a log? where does this happen?
    Sulski Performance Tuning
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    Quote Originally Posted by foff667
    im assuming you've completely removed the maf er...?

    Yes. MAF is gone from the car.
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

  13. #13
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    Quote Originally Posted by foff667
    I have to question how accurate your VE table actually is at this point I would think it would be much lower towards the upper cells.
    I had to keep bumping them up because they kept coming up positive while scanning even at WOT.
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

  14. #14
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    Quote Originally Posted by foff667
    also your ifr table is setup for ~70lb injectors...i thought you were still running stock 28lbers? Very very questionable tune right now man...you might want to consider starting over and attacking your combination again with a clean slate, but thats me.

    I have to edit my signature. I put in 60# injectors about 2 weeks ago and used REDHARDSUPRA's excel sheet to calculate the values as I was told in a previous thread.
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

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    Quote Originally Posted by ws6firebirdta00
    can you post a log? where does this happen?
    Where does what happen? I am just trying to get my AFR to 12.7-13.0:1 at WOT. The wideband is telling me that I am in the 11.7 to 12.1ish range. I have it set at what looks like 13.0:1 commanded in my PE table.
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

  16. #16
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    Quote Originally Posted by ws6firebirdta00
    can you post a log? where does this happen?
    I will try to get a log up but I am not sure what you would like to see in the log. I have been logging LTFT, STFT, Spark, KR, Narrowband O2's and I think that is it. The wideband is not hooked up to the laptop as I do not have the EIO. I am watching the wideband on the digital display for the LM-1.
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

  17. #17
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    Quote Originally Posted by LosLS2
    Where does what happen? I am just trying to get my AFR to 12.7-13.0:1 at WOT. The wideband is telling me that I am in the 11.7 to 12.1ish range. I have it set at what looks like 13.0:1 commanded in my PE table.

    see what your not understanding here is if your VE table isnt accurate that 1.13 # your putting in will never match your actual a/f. If you dont have the pro version read over mr. dude's writup on how to integrate it through the egr connector and hopefully you can go from there...if not I dont see why you'd even really mess too much with your VE table since your just guessing at this point.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  18. #18
    Tuning Addict WS6FirebirdTA00's Avatar
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    exactly, and to do this you need to log wtih the WB
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  19. #19
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    Quote Originally Posted by foff667
    see what your not understanding here is if your VE table isnt accurate that 1.13 # your putting in will never match your actual a/f. If you dont have the pro version read over mr. dude's writup on how to integrate it through the egr connector and hopefully you can go from there...if not I dont see why you'd even really mess too much with your VE table since your just guessing at this point.
    Would lowering my VE Table values in those cells help me to lean it out?
    98 Z28 370 LQ9 w/ TH350, FTI 4800 Stall, OLSD, NW90 TB, 80# Motron Inj, AFR 225's, 231/231 .624/.624 114, Mamofied FAST 90 Intake, PT88 Front Mount w/ 4" DP dumped before the Strange S60 w/ a 3.73 gear

  20. #20
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    yes...with no maf VE is directly proportional to fueling, as is your pe table.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"