This engine has:
* Two turbochargers: One for each rotor.
* Intercoolers: To cool the compressed air before it enters the engine.
* Sequential turbocharging: A system that uses one turbocharger at low engine speeds and then switches to both turbochargers at higher RPMs for more power.
It's important to note: The specific turbochargers used on the 1991 RX-7 II were not given specific model names by Mazda. However, they are often referred to as "stock" or "factory" turbochargers.
If you're looking for more detailed information: You can find specifications and diagrams of the 13B-REW engine and its turbochargers online from various sources, including Mazda manuals and enthusiast forums.
