By the end, N.C. State had held UNC to its lowest point total in its nearly three-decade run in the Smith Center. Not to mention beat a Roy Williams-coached Tar Heels team in Chapel Hill for the first time ever.
Freshman Justin Jackson scored 16 points for the Tar Heels, who shot 35 percent.
UNC had won 17 of 18 meetings overall and hadn't lost to N.C. State in Chapel Hill since 2003, the year before Williams left Kansas to take over at his alma mater.
N.C. State led by 11 at halftime then as many as 16 early in the second half. Then, after the Tar Heels ran off 12 straight points to build momentum and erase nearly all the deficit, the Wolfpack hung in and kept just enough control to hang on.
Turner scored 11 points after halftime, including three 3-pointers that helped keep the Wolfpack in front.
N.C. State has been living on the NCAA tournament bubble for a solid month. It followed a win against Duke with six losses in eight games and looked sunk, only to follow that with a road upset against top-10 Louisville on Feb. 14.
Now Mark Gottfried's club has another big win to help its cause.
N.C. State: BeeJay Anya blocked six shots as part of a strong defensive effort up front for the Wolfpack ... N.C. State shot just 35 percent for the game.
UNC: Kennedy Meeks finished with 12 points and 14 rebounds. ... Preseason all-American Marcus Paige managed just seven points with one 3-pointer. ... Brice Johnson scored just four points on 1-for-6 shooting.
N.C. State travels to Boston College on Saturday.
UNC travels to Miami on Saturday.