What A/F is considered lean for ls1 and wideband ?

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03-01-2007, 10:36 PM

99WS7

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What A/F is considered lean for ls1 and wideband ?

Just curious what is considered lean for a NA ls1 at WOT. Also, for those with widebands what are you seeing at idle, cuising and WOT. Thanks...

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03-01-2007, 10:38 PM

SSpdDmon

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Well, personally, I don't like anything leaner than 13:1. In fact, I don't go leaner than 12.8:1.

Idle and cruise should be at stoich (14.63:1).

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03-02-2007, 08:06 AM

foff667

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yeah it depends who you ask...some people don't mind going as lean as 13.5 or 13.6:1...others won't go much leaner than 12.8:1 on the street...too many varying opinions & they are both have supporting arguments.

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03-02-2007, 09:16 AM

MeentSS02

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Leanest mine goes is 13.1-13.2 on the street, but that is only in certain portions of the RPM band. I let it go richer at peak torque.

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