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optimal afr ratio?

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Old Nov 8, 2009 | 07:51 AM
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gmc1999
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Default optimal afr ratio?

Hi everybody, I'm getting v&h big shots,sert, and a screamin eagle airfilter put on. The dyno tune is free what should the afr be? Thanks.
 
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Old Nov 8, 2009 | 09:25 AM
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Originally Posted by gmc1999
Hi everybody, I'm getting v&h big shots,sert, and a screamin eagle airfilter put on. The dyno tune is free what should the afr be? Thanks.
In closed-loop (cruising) you can ask the SERT to give you 14.2 instead of 14.7.

In open-loop, 13.5 seems to be the number on mine, 12.something at idle.
 
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Old Nov 8, 2009 | 11:58 AM
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14-16 at idle, 14 cruising and high 12's low 13's at wot.
 
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