12B
The 12B was a short lived engine that was produced for the Mazda RX-2, and the RX-3. It had increased reliability from previous series, and it introduced a single distributor. This was the beginning of the single distributor rotary engines, before that, the 12A and 10A were both twin distributor wankels. The improved 12B was quietly introduced in 1974.
Applications:
- 1974–1978 Mazda RX-2
- 1974–1978 Mazda RX-3
Read more about this topic: Mazda Wankel Engine