Air Fuel Ratio

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sr kid 88
Posts: 158
Joined: Thu Jan 17, 2008 3:10 pm
Car: 91' sr240

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ok so i just had my motor fully built from sleeves to stage 3 bc cams. ne wayz i was running emanage ultimate and that wasn't cutting it so i got a flashed jim wolf ecu programmed for my setup. when i first started it up the air fuel sat on 14.7 then worked its way down to mid 11s i wanted to know if that is where the air fuel is supposed to be at on the jim wolf and might i add it smokes white as it get richer(around 10s and 11s) anybody have a answer. thanks


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redsx13
Posts: 748
Joined: Fri Aug 03, 2007 12:32 am
Car: 93 240sx 03 350z

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sr kid 88 wrote:ok so i just had my motor fully built from sleeves to stage 3 bc cams. ne wayz i was running emanage ultimate and that wasn't cutting it so i got a flashed jim wolf ecu programmed for my setup. when i first started it up the air fuel sat on 14.7 then worked its way down to mid 11s i wanted to know if that is where the air fuel is supposed to be at on the jim wolf and might i add it smokes white as it get richer(around 10s and 11s) anybody have a answer. thanks
no, thats way rich, it should stay around high 14ish all the time at normal idle.


V8slayr
Posts: 104
Joined: Wed Feb 04, 2009 1:21 pm
Car: 97 240sx

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My stock ECU would idle anywhere from 13.8 to 15:1 AFR. But i wouldn't think it would be smoking white because it's rich, usually that smoke is blackish. But even if my car idles at 11:1 it doesn't smoke at all. That is probably another issue in itself.

sr kid 88
Posts: 158
Joined: Thu Jan 17, 2008 3:10 pm
Car: 91' sr240

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ok thanks i will go by the shop later on today


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