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A/F Ratio Variance

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Old 06-16-2006, 09:02 PM
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allfyre
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Default A/F Ratio Variance

I'm wondering about the range of "acceptable" values for the a/f ratio in these cars with various modifications. Also, what sort of variance would be considered in the normal range.
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Old 06-16-2006, 09:13 PM
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randy78045
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Default RE: A/F Ratio Variance


ORIGINAL: allfyre

I'm wondering about the range of "acceptable" values for the a/f ratio in these cars with various modifications. Also, what sort of variance would be considered in the normal range.
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Old 06-16-2006, 09:16 PM
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allfyre
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Old 06-16-2006, 09:40 PM
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QuickShortBus
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Default RE: A/F Ratio Variance

13:1 for n/a and 11-11.5:1 for forced induction with a variance of +/- .5 is considered pretty standard for most cars.
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Old 06-17-2006, 02:11 PM
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Default RE: A/F Ratio Variance

The N/A 05/06 Mustang GT's make the most power at a slightly rich 12.5-12.6 A/F ratio.
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Old 06-17-2006, 02:22 PM
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Birdieman4
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Default RE: A/F Ratio Variance

13:1 for n/a and 11-11.5:1 for forced induction with a variance of +/- .5 is considered pretty standard for most cars.
Pretty much covers it. In a forced induction setup, my ideal A/f ratio would be about 11.8: 1 with a correct timing setting
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