The moment of truth! We test this ZZ4 crate engine and see what she can do. After a pull or two on the Mustang dyno, we measured a 41 percent increase from its original baseline. Baseline peak horsepower was 220 and the new numbers after the install came in at 310 hp. Not bad for a non-intercooled system running 8 pounds of boost. Is there more potential in this engine? You bet. Stay tuned, we plan to change the fuel lines and sending unit in order to free up more horsepower potential.
Small-Block Chevy Supercharger - Blow Away The Competition
Wringing out ProCharger's new serpentine belt system