What does a wideband dyno pull record? I imagine A/F ratio. Is there anything else?

 

A/F Ratio vs RPM or MPH, or pretty much anything the operator wants.

Remember the a/f ratio will be slightly different on the street.

allen

 

Thank Allen for the respond. I am trying to decide whether a wideband pull would be benefical for me. I can not do anything about the a/f. I do not have a tuner and the dyno shop is primarily for Ford tuning. But he is charging $45 for two pulls w/o wideband. Wished I lived closer to a facility that actually does dyno tunes for ls1 based vehicles.

By the way, do you take altitude into consideration when doing mail order tunes?

 

AF is good to know for peace of mind.
Readings will show somewhat "leaaner" if you have cats.