Mazda 13B wankel technical book

Here is the lastest mook release in Japan about RX7 engine; It is the Mazda 13B technical book with DVD about Wankel rotary engine.

Lots of pics and infos about how tune a RX7's engine with big power. The best japanease wankel's tuners are in the DVD with their amazing RX7.

Here other technical book that i own:
http://japan-hobby.blogspot.it/2015/05/nissan-rb-technical-handbook-with-dvd.html
http://japan-hobby.blogspot.it/2015/08/subaru-impreza-ej20-mook.html