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How much does tempreture affect AFR?

Old 07-21-2005, 10:18 PM
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Default How much does tempreture affect AFR?

my question is to what extent do tempreture affect the AFR's? Say i tuned my car for 12.1:1 AFR under boost on a warm afternoon, about how much generally would it lean out by when i drive in a cool evening? i'm assuming only around .3-.5AFR difference.
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Old 07-22-2005, 12:06 AM
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Default Re: How much does tempreture affect AFR?

from my personal experience. .3 to.4of a difference between a nice hot day to night time driving.
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Old 07-24-2005, 09:11 PM
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Default Re: How much does tempreture affect AFR?

So does anyone have a rough idea of temp drop vs. points in AFR change? Like for every 10 degrees drop in temp it changes .3-5 in Afr?

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