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Air fuel ratio

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Old 10-29-2010, 01:01 PM
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Default Air fuel ratio
Ijust hooked up a wideband in my car, i have a turbo 5.3 runnin around 10psi and the A/F is 12.0 at WOT. Is that to lean for the motor to last a long time doin WOT runs.
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Old 10-29-2010, 01:11 PM
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Some will say that's a bit lean others would say its fine. Id tune for 11.5 personally.

Is your username MacGyver related? Lol
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Old 10-29-2010, 01:24 PM
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thanks for the reply and no it my real name haha
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Old 10-30-2010, 12:04 AM
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You will probably get more responses in the PCMtuning section.
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Old 10-30-2010, 03:56 PM
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Probably a little on the lean side for total reliability, depends how much boost your running.

I shoot for 11.5-11.8
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Old 10-30-2010, 06:45 PM
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That leaner than I like on pump gas. On race gas, I'd rock it.
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Old 10-31-2010, 08:08 AM
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Originally Posted by 98Z28CobraKiller
That leaner than I like on pump gas. On race gas, I'd rock it.
like he stated thats on the lean side id take it down to 11.5-11.0. and being a stock bottom end id go richer 11.2-11.0. just to be safe
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Old 10-31-2010, 08:11 AM
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Originally Posted by tomz28
like he stated thats on the lean side id take it down to 11.5-11.0. and being a stock bottom end id go richer 11.2-11.0. just to be safe
I agree, fatten it up a little. Bob
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Old 10-31-2010, 12:28 PM
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Originally Posted by tomz28
like he stated thats on the lean side id take it down to 11.5-11.0. and being a stock bottom end id go richer 11.2-11.0. just to be safe
Very good advice!
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Old 10-31-2010, 12:41 PM
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Originally Posted by Zombie
Very good advice!


+1
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