If i take the wash road all the way south from wash 22 where will i end up

Gordons, near the drags, test ???

You'll come out on Ogilby, where the train tracks cross the road, about 5 miles north of the 8 and on the east side of the dunes.
Roughly 9 miles NE of Gordons and a long way from the soft sand.

google map

If you want to get to the south drags in gordons, the easiest way would probably be sand highway. go over to gecko and just run with it all the way south.