[jpcruiser]

i have a wide band o2 sensor with data logging capabilities and i am going to do some custom tuning with the pc3 usb. i remember reading somewhere that the X's like to run a little rich.. i was going to set it up for max power under full throttle and then set it up for gas mileage while under normal cruising loads for between 50 to 75 mph. i know that 14.7:1 is perfect combustion but what is the safe limit for setting it a little leaner for max mileage and what should i shoot for AFR under WOT

 

[Big Jon]

Pretty technical stuff there JP. Keep in mind that most of your cruising will be at quarter throttle/second stage.

 

[Paramedic Johnny]

under WOT, 13.0:1 is money. may seem rich, but that's the best curve for WOT.

 

[jpcruiser]

thanks for the ratio but unfortunately this project is on hold for now...cannot get wideband to integrate with pc3 to data log everything. the wide band does work and i am between 11.5-1 and 13.5 - 1 afr under WOT and cruise is 14ish to 1 but i have no idea of what the map/rpm/tps etc under these conditions so until i can get data logging working this is on hold. will update when i find the time to get things going