Thread: what AFR?

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  1. #1 what AFR? 
    GTX Level Member Juanmiguel's Avatar
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    Hey I was just wondering what kind of AFR are you all running on your GTP?
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  3. #3 Re: what AFR? 
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    11-11.3

    Iz too rich since i'm intercooled.
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  4. #4 Re: what AFR? 
    GrandPrix Junkie redlinepontiac's Avatar
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    11.5
    RayRay
    92 Turbo miata
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    02 lexus is300
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  5. #5 Re: what AFR? 
    GrandPrix Junkie machinegunsquid's Avatar
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    "**** bills. You can live in your car but you can't race your house" -dsmuts
    Want her to stop when she's not looking karate chop her in her crotch that should quiet her for a bit or at the very least put a smile on your face -REDCOMPG
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  6. #6 Re: what AFR? 
    GTP Level Member Bedwards's Avatar
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    12.5. I'm gonna add some fuel, add some timing and drop a few pulley sizes when I get a chance to not be lazy and go tune it. Maybe aim for around 11.5. We'll see.
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  7. #7 Re: what AFR? 
    The mod from over yonder TheOtherNick's Avatar
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    11.5ish is where you want for a non intercooled car. Intercooled car 12ish.
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
    SMGPFC Two Nipple General
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  8. #8 Re: what AFR? 
    GTP Level Member 01gpgt01's Avatar
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    11.9-12.2 is usually where im at
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

    2009 Hummer H3 Solar flare premium
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  9. #9 Re: what AFR? 
    GTX Level Member Juanmiguel's Avatar
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    I was running 11.2 until today and lower 10's before that. I changed it to 11.5 today. What happens if you run too rich like I did? I only noticed it bogged me down at the end of the track.
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  10. #10 Re: what AFR? 
    GTP Level Member 01gpgt01's Avatar
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    If you get to rich that can actually cause knock. You run the risk of White washing the cylinder walls(really rich)m and diminished performance(boging like you experienced). If your gauging your AFR off of Commanded AFR that is NOT accurate one bit. You need to be looking at a wideband
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

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  11. #11 Re: what AFR? 
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    11.5 with 16-17* of timing, IC'd
    2003 SSEi,
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  12. #12 Re: what AFR? 
    DUI BABY Bio248's Avatar
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    wait, youre asking this for commanded AFR? UGH.

    get a wideband already.
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  13. #13 Re: what AFR? 
    Donating Users gtpsleeper's Avatar
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    12.6 with 20* and a 3.0 pulley ICed...
    "My car is a racecar like Planet Fitness is a gym...."

    proud mark VIII victim!!! suck it...
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  14. #14 Re: what AFR? 
    GTX Level Member Juanmiguel's Avatar
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    Quote Originally Posted by Bio248 View Post
    wait, youre asking this for commanded AFR? UGH.

    get a wideband already.

    I didn't say that.
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  15. #15 Re: what AFR? 
    GTP Level Member Bedwards's Avatar
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    Quote Originally Posted by gtpsleeper View Post
    12.6 with 20* and a 3.0 pulley ICed...
    Sex.
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  16. #16 Re: what AFR? 
    GTP Level Member 01gpgt01's Avatar
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    Quote Originally Posted by gtpsleeper View Post
    12.6 with 20* and a 3.0 pulley ICed...

    Leaners meaner, but id fatten that up to around 12.2 to be safe
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

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  17. #17 Re: what AFR? 
    Donating Users gtpsleeper's Avatar
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    Quote Originally Posted by 01gpgt01 View Post
    Leaners meaner, but id fatten that up to around 12.2 to be safe
    was at 12.8 and backed it down to 12.6 to be safe
    "My car is a racecar like Planet Fitness is a gym...."

    proud mark VIII victim!!! suck it...
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  18. #18 Re: what AFR? 
    GTX Level Member Juanmiguel's Avatar
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    So for the wideband, can I only buy the sensor without the dial and plug it directly to the tuner?
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  19. #19 Re: what AFR? 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
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    Quote Originally Posted by Juanmiguel View Post
    So for the wideband, can I only buy the sensor without the dial and plug it directly to the tuner?
    You mean without the guage? You can't just buy the sensor itself, needs a controller or power.

    I'd rather have a wideband with a guage for a couple reasons:

    1. To get the correct AFR setup for scanning, with the guage there you can double check to make sure the formula you entered for PID is correct, sometimes the formula may need adjusting and you don't realize your actually at a 11.2 AFR when the scan says your at a 11.9 AFR...
    2. When you're not scanning it is a great tool to be looking at or to have. You could save an engine or find an issue before it starts to get worse.
    2001 GTP PT61 Turbo, E85, Stock Motor
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  20. #20 Re: what AFR? 
    Donating Users crock's Avatar
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    wanna get technical, for the normal car 14.7 to one is the best lol
    99 GTP- 104s, 180 Tstat, 1.9 rockers, 3.4, ls1 MAF, KN, 3''DP, HF cat, GMPP Strut Bars, Crappy Tune, Broken Tensioner Mod.
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