g11ary
Member
There is currently a group buy on MRC for a 4 box set of dvd's, on how to rebuild a rotary engine. Other dvd's available soon on tuning, porting and building 3 & 4 rotor engines. 
http://www.mazdarotaryclub.com/forums/showthread.php?t=17875&page=1&pp=15
http://www.mazdarotaryclub.com/forums/showthread.php?t=17875&page=1&pp=15