1993 Supercharged V-8 Formula Firebird
The supercharger used on the 4.3L engine was an experimental Eaton unit with a top-side air inlet. It displaced 112 ci per revolution and was larger than either of the units used on the production 3800 V-6 engines. Note the orientation of the throttle body to the blower. A large pulley kept boost down to 8.5 psi. View Related Article