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  1. #1
    TheGunMan's Avatar
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    Air temp vs fuel

    What is the corelation between airt temp and fueling. With hotter air fuel needed for perfect AFR is more or less?


  2. #2
    boost junkie skidoochris's Avatar
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    hot air is less dense so less fuel is needed

  3. #3
    Generally, it is something that the code in the ECU should take care if itself and is something you really don't need to worry about. In the jetski world, the outside riding temps are relatively constant from about 75 degrees to about 100 degrees. Not a huge range. Cars easily have to deal with -10 to 115 temp ranges. Remember that the ECU correction is with respect to -460 degree F so swings of twenty degrees F in IATs is not a big deal.

    You will see issues on some motors when the CMD will have as significantly different fuel correction pattern from summer to winter. I see this problem big time on my FZ1 Yamaha,

    Have fun tuning

    Andy

  4. #4
    TheGunMan's Avatar
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    Thank you

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