Hypothetical Question on Idle for Tuners....

Willie

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When replacing a TB with a larger unit, does the Neutral Idle Air table values need to be adjusted? If so, lower or higher and why? My brain is jello on this. I can reason it out both ways.....
 

69b302

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If the TB meets factory specifications for leakage, etc you should not have to change Neutral Idle Air. Neutral Idle Air is mostly tuned when CAMs are changed and the idle airflow characteristics of the engine are changed. What TB are you tuning?
 

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