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Is 15.5 to 16.5 acceptable for Cruise?

   
Old 07-31-2008, 06:17 PM
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Question Is 15.5 to 16.5 acceptable for Cruise?
Is 15.5 to 16.5 AFR acceptable for Light excelleration and Cruise?
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Old 07-31-2008, 11:02 PM
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Is this Too Lean? Thanks
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Old 08-01-2008, 12:34 AM
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Works for me. Providing it isn't knocking.
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Old 08-01-2008, 07:28 AM
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I don't have any knocking going on ,but it does chug a little in 4th gear
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Old 08-01-2008, 07:54 AM
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My highest AFR at cruise is 16.2 and I'm averaging 27mpg on the highway with my 416 now.
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Old 08-01-2008, 08:57 AM
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Its fine you will know when it starts lean miss firing. Make sure as soon as you start getting a little load on the engine you start getting closer to 15:1 though.
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Old 08-02-2008, 10:43 AM
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Cool ,It does get richer 15.5 to 15.2 afr when stepping on peddle lightly
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Old 08-03-2008, 01:05 PM
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mine idles at 17.9 to --- lean... with h/c

ill have to watch and see what it does just cruising
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Old 08-04-2008, 07:12 AM
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With a nasty cam its ok to show lean on idle, as its not the actual afr at that point because of cam overlap tricking the sensor.
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Old 08-04-2008, 04:00 PM
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Originally Posted by hellbents10
With a nasty cam its ok to show lean on idle, as its not the actual afr at that point because of cam overlap tricking the sensor.
I wouldn't consider my cam nasty for a 408 ,244 248 @.05 But Maybe you right its not as lean as it thinks it is...
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