Specifically how the rotor cooling works. It is not like Mazda kept a big deep dark
secrete about it. Kenishi Yamoto explained it in his 1969 book "Rotary Engine" which
obviously certain people did not read or did not have the mental where with all to
understand :) It is available on the web for free download.
  http://foxed.ca/foxed/index.php?page=rx7manual

Paul Lamar


Paul,

1969 or 1971 Edition?

I still have my '81 Edition.  When I moved a few years back a lot of my books got water
soaked, and eaten by silver fish, while in storage. :(   Thankfully Jan Norbye's book
and a few others in a different box survived.

Tom Walter

I have the the 1969 and the larger format 1981 version. Both hard bound.
I have the 1971 Jan Norbye book too.

The bible of the rotary engine displacement and theory
is the 1969 U.S. version of "The Wankel RC Engine" by R.F. Ansdale.
I have that one too. Tons of excellent illustrations on how
the Wankel works.

Try to find these on the internet in used form and buy them.
Excellent investments.

Paul Lamar