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best air fuel ratio

Practical Reflash Tuning

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how do you know for each different car whats the best air furl ratio for the car. whats the best for each engine.each car is different like explained earlier.

You test the car on a dyno -- that is the tool used to determine the torque (and power) output of the engine.

Hey Ryan, If you haven't already gone through it, I'd suggest you have a look at our 'Understanding AFR' course as we discuss this very topic at lenght and we go through some of the ways you can test on the dyno to find the best AFR for your application.

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