Ive driven around 115 at night a lot. Keep in mind is 795 by my house, its not the straightest track in the world, but around 2 am, there are no cars, and no cops can catch you unless you fly up on them or they catch you from behind since there is a subway going inbetween. (thats the part toward the bottom right.
the part on the upper left, is straight as ****, about 3 miles of perfectly straight 2 lane road, but the 50 feet between each road (each direction) give a cop more than ample room to see you and to turn around and arrest so ass, so its a bigger risk there.

I usually go around 110 at night on the first part of 795 (from bottom right), but after getting my OEM lip put on, the car feels so much better on the road that now 125 feels the same. I can wait to get my suspension on.