Wally West has said more than once that Barry Allen was the Flash most experienced with time travel. However, Wally has been shown to have a connection to the Speed Force, an extradimensional energy source, which provides his powers and gives him several other abilities. While all speedsters are powered by the force, West mainlines the power from the force itself and cannot be cut off from the source, unlike the others. Wally has on several occasions sped faster than light and been pulled into and exited the speed force by his own volition. He can create his costume out of pure speed energy, and can either impart his high velocities to other people and objects already in motion or steal the velocity they possess. Jay Garrick also possesses this ability to some degree; he stole speed from Black Adam in order to defeat the villainous Johnny Sorrow, and he has threatened to steal Bart Allen's (formerly Impulse, currently the new Kid Flash) speed on at least one occasion when he was misbehaving. West can vibrate through objects; in the past, West would cause whatever he vibrated through to explode, but has recently shown this to be a controlled ability as he can pass through objects without any ensuing explosion. Although not nearly as precise as Allen when he used his cosmic treadmill, West has shown to be able to traverse time and dimensions with his own powers, like Allen in Showcase #4 in 1956. However, Wally now accelerates to the point that he is skirting the very edge of the Speed Force dimension, and can traverse along the timestream to specific points as they become visible, much like watching a movie in fast forward or reverse (however he must have a particular speedster's vibratory signature to search for and lock onto, or be very familiar with the vibration of that time period).
This says some of the specific abiliies that Wally had. Much more than just superspeed.
