How to find your correct AFR?

Discussion in 'PSI Superchargers Tech Questions' started by Critical Mass, Jul 13, 2012.

  1. Critical Mass

    Critical Mass Member

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    What is the best way to find your correct AFR for your setup? I was told to change your blower OD by two teeth and leave your fuel alone or change your fuel and leave the blower alone, and keep your eye on the plugs? What is your method? I'm still learning.

    Thanks for any input. Joe
     
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  2. Moparious Maximus

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    Plug reading and fuel changes.
     
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  3. Vhodoo Racing

    Vhodoo Racing New Member

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    Best thing to do is start with a base line from one of the many experienced fuel injection guys that have been mentioned on previous posts about base lines. From there you can do the plug reading gig. Just sneak up on it, better to go a bit slower than burn parts up. I am also learning. I got Bob Szobos online fuel calculator from Air Density Online it is not expensive and you can learn a lot by putting your combo in then making virtual changes to see how it will affect your AFR. Cheers Pete
     
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  4. craig moss

    craig moss Member

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