WOT air/fuel mix?
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Old March 5th, 2008, 11:34 PM   1 links from elsewhere to this Post. Click to view. #1
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WOT air/fuel mix?


On the xcal3 theres the option to change the WOT air/fuel mix by %'s. Does anyone know if you can SAFELY change that without doing any other changes. And if you can, does it do anything?
Dont mean to sound dumb if i do but i dont know very much about my tuner and i havent been able to find where i can read more about it
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Old March 6th, 2008, 12:49 AM   #2
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You can if it needs it. You need to datalog it first to see where your AFR is. Have you up the timing any with the tuner? I have my mach at 4 degrees advance and 2% leaner on 91 octane.
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Old March 6th, 2008, 10:52 AM   #3
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You shouldn't mess with the AF unless you have a wideband, or measured the current AF on a dyno.
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Old March 6th, 2008, 11:14 AM   #4
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You would need to run a wideband and run the tune on a dyno. Different cars make better power at different a/f ratios. For instance, my car likes more fuel to run at it's best.
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Old March 6th, 2008, 02:11 PM   #5
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Originally Posted by Jgorm View Post
You shouldn't mess with the AF unless you have a wideband, or measured the current AF on a dyno.
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