From Vit's site. I have a 12 inch sub, amp, and I had my daughter in the car with me.
"For an accurate eDyno I need the following (if this isn't provided I use the defaults of FG2 + 180lb driver, no SAE correction):Vehicle weight (typically "FG2 or "FA5" works as I know those weights)Weight of junk in the car and all occupants (driver, passengers, subwoofers, etc)Road must be LEVEL with NO turns or bumps. Those WILL affect the power curve.If you want the eDyno SAE corrected (for weather), I need the following from the time of the pull:Humidity (%)Temperature (*F)Barometric Pressure (in.Hg.)Elevation (ft)"