That makes sense. I think my tuner sets the AFR to 14.6 across the entire rpm range when record mode is active. I have some wide band o2 sensors ordered, maybe that will help it to collect more data....

Will the volumetric efficiency change if the air fuel ratio changes? I am using race tuner software for a drag bike that records the run and suggests changes to the VE tables, after changes are made...

New member from Oklahoma. I have built many carb engines and have just started working on EFI systems. I worked for 18 years as a electronic tech. Now I work as a diesel mechanic.