A/F ratio

[onebadcbr929]

I am trying to tune my bike with the bazzaz box and was wandering what my target a/f ratio should be?

2008 Busa Full exhaust, pipercross filter, short velocity stacks,,, Elevation 2900 ft??? Thanks.

 

[Wheelie]

your Location says Texas, where are you to be at 2900ft?


wee

 

[onebadcbr929]

West Texas, Midland, Odessa area.

 

[Elganja]

mine is tuned on the dyno at ~12.8:1... realistically at the track (i.e. under load) I would say it's around ~13.2:1.

 

[Draco1340]

Yup, 13.1 to 13.4 is the sweet spot for power.

The "cruise" range from 2% to 10% throttle position and from 3krpm to 6.5krpm can be leaned way out from 14 to 14.5 or even higher.

 

[Draco1340]

Of course I don't always practice what I preach.  Quick video segment showing A/F ratio dancing all over the place as I ran through the gears.

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[Commuta_Busa]

you tune for what the engine likes and what you're after (rich best torque/lean best torque) or whatever you're chassing