When someone leaves my dyno, they have a CD with all the data on it, RAW, corrected and every factor that went into getting those numbers. Along with a copy of the windyn software to look at it any way they want.

As far as slinging a phsycromter around, nope I don’t do it. The SF Powermark was made this decade and all weather readings are taken by sensors, in real time. In fact, if the air was to change in the middle of a pull (unlikely) then the correction factor would change. (raw numbers wouldn’t)

Since you are going to a dyno to collect data on how your engine runs, I can’t see a reason why you shouldn’t leave with a ***load of info.

Joe