Just something to do on the night before Thanksgiving. I got tired after checking back to the 1967 76ers. Only one team in a full 82 game season since 1967 had an 8-7 record after 15 games and won an NBA title, the 1978 Washington Bullets (who finished 44-38 that season). Any earlier than that, the season gets a little shorter.
1980 - Lakers 11-4
1981 - Celtics 10-5
1982 - Lakers 11-4
1983 - 76ers 13-2
1984 - Celtics 10-5
1985 - Lakers 10-5
1986 - Celtics 13-2
1987 - Lakers 12-3
1988 - Lakers 10-5
1989 - Pistons 12-3
1990 - Pistons 10-5
1991 - Bulls 9-6
1992 - Bulls 13-2
1993 - Bulls 11-4
1994 - Rockets 15-0
1995 - Rockets 11-4
1996 - Bulls 13-2
1997 - Bulls 14-1
1998 - Bulls 9-6
1999 - Spurs 7-8 (50 game season, 30-5 after that start)
2000 - Lakers 11-4
2001 - Lakers 11-4
2002 - Lakers 14-1
2003 - Spurs 9-6
2004 - Pistons 10-5
2005 - Spurs 12-3
2006 - Heat 9-6
2007 - Spurs 11-4
2008 - Celtics 13-2
2009 - Lakers 14-1
2010 - Lakers 12-3