http://me.a-spec.ca:6001/Past/Rotary/68Familia.html

this is from a site that i had to translate the german
"R 130 Coupe (Luce) 1969 of MAZDA introduced. The engine 13A hadan output of 126 SAE HP with 6000 Upm, max. Torque 171Nm/3500. The chamber volume amounted to 2 x 654 ccm. The car was based on the prototype RX-87, the 1968 on the 15. Tokyo Motorshow presented become-becoming that engine 13A had a larger eccentricity than the 10A and is practically laid out for Langhubig thereby. With the 12A and 13B it concerns widened 10A-Wankelmotoren."



its also on mazda website under the history of the rotary
http://www.mazda.com/history/rotary/n1-1.html