diff --git a/src/k_kart.c b/src/k_kart.c
index 7618a615a..957ee6564 100644
--- a/src/k_kart.c
+++ b/src/k_kart.c
@@ -4459,20 +4459,20 @@ mobj_t *K_ThrowKartItem(player_t *player, boolean missile, mobjtype_t mapthing,
 			if (dir == -1)
 			{
 				// Shoot backward
-				K_SpawnKartMissile(player->mo, mapthing, (player->mo->angle + ANGLE_180) - 0x06000000, 0, PROJSPEED/8);
-				K_SpawnKartMissile(player->mo, mapthing, (player->mo->angle + ANGLE_180) - 0x03000000, 0, PROJSPEED/8);
-				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle + ANGLE_180, 0, PROJSPEED/8);
-				K_SpawnKartMissile(player->mo, mapthing, (player->mo->angle + ANGLE_180) + 0x03000000, 0, PROJSPEED/8);
-				K_SpawnKartMissile(player->mo, mapthing, (player->mo->angle + ANGLE_180) + 0x06000000, 0, PROJSPEED/8);
+				K_SpawnKartMissile(player->mo, mapthing, (player->mo->angle + ANGLE_180) - 0x06000000, 0, PROJSPEED*dir/8);
+				K_SpawnKartMissile(player->mo, mapthing, (player->mo->angle + ANGLE_180) - 0x03000000, 0, PROJSPEED*dir/8);
+				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle + ANGLE_180, 0, PROJSPEED*dir/8);
+				K_SpawnKartMissile(player->mo, mapthing, (player->mo->angle + ANGLE_180) + 0x03000000, 0, PROJSPEED*dir/8);
+				K_SpawnKartMissile(player->mo, mapthing, (player->mo->angle + ANGLE_180) + 0x06000000, 0, PROJSPEED*dir/8);
 			}
 			else
 			{
 				// Shoot forward
-				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle - 0x06000000, 0, PROJSPEED);
-				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle - 0x03000000, 0, PROJSPEED);
-				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle, 0, PROJSPEED);
-				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle + 0x03000000, 0, PROJSPEED);
-				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle + 0x06000000, 0, PROJSPEED);
+				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle - 0x06000000, 0, PROJSPEED*dir);
+				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle - 0x03000000, 0, PROJSPEED*dir);
+				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle, 0, PROJSPEED*dir);
+				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle + 0x03000000, 0, PROJSPEED*dir);
+				K_SpawnKartMissile(player->mo, mapthing, player->mo->angle + 0x06000000, 0, PROJSPEED*dir);
 			}
 		}
 		else
@@ -4480,12 +4480,12 @@ mobj_t *K_ThrowKartItem(player_t *player, boolean missile, mobjtype_t mapthing,
 			if (dir == -1 && mapthing != MT_SPB)
 			{
 				// Shoot backward
-				mo = K_SpawnKartMissile(player->mo, mapthing, player->mo->angle + ANGLE_180, 0, PROJSPEED/8);
+				mo = K_SpawnKartMissile(player->mo, mapthing, player->mo->angle + ANGLE_180, 0, PROJSPEED*dir/8);
 			}
 			else
 			{
 				// Shoot forward
-				mo = K_SpawnKartMissile(player->mo, mapthing, player->mo->angle, 0, PROJSPEED);
+				mo = K_SpawnKartMissile(player->mo, mapthing, player->mo->angle, 0, PROJSPEED*dir);
 			}
 		}
 	}