[Dan Fahey]

My car runs better at lower DA.
But you have to add in Moisture content that takes away the Oxygen if you have equals DA readings.
Cold dry days are best with high Barometric readings and very low humidity.

Learned a lot from flying planes. Especially in Denver on hot days.
Fully loaded private prop planes without a TC cannot take off.
Prop can't generate enough bite and the wing enough lift.
DA readings can be several thousand feet higher.
Barometer readings in the 26 range.

Coastal tracks you can see better DA than middle America.
Strange that Cecil County Dragway is 500 ft above sea level.
But Cold Air Day Drag days see DA's as low as 2000ft below sea level.

East coaster love to go to that track for bragging rights.
Racers from Ohio take the treck out every year just for that experience.

My best on Cool airs are consistent Low low 13's.
Managed a 12.88 at Cecil. DA -800ft
Where at Pittsburgh last Summer ran 13.80's hot lapping, in the morning a 13.65 cold.
DA was reported near 4000ft.

D