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Ideal air fuel ratio of tuned car.

I have tried to find what most NA tuned cars are running in regards to air fuel. I am trying to have this answer as reference for when I go

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Old 10-19-2020, 11:46 AM   #1 (permalink)
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Default Ideal air fuel ratio of tuned car.

I have tried to find what most NA tuned cars are running in regards to air fuel. I am trying to have this answer as reference for when I go and get my car tuned as it will be a make or break question I ask the tuner. So far it seems most tunes end up around 12.8-13.0 air fuel. Can anyone confirm this.
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Old 10-28-2020, 11:19 PM   #2 (permalink)
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Originally Posted by MrNibiru View Post
I have tried to find what most NA tuned cars are running in regards to air fuel. I am trying to have this answer as reference for when I go and get my car tuned as it will be a make or break question I ask the tuner. So far it seems most tunes end up around 12.8-13.0 air fuel. Can anyone confirm this.
I think 12.8 sounds about right. Just to clarify we’re talking at the upper RPM higher load right?
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