* Year and Model of Blazer: Different years and trims have different engines, and the existing power output will heavily influence the gain from a supercharger.
* Type of Supercharger: Different superchargers have different levels of boost and efficiency. A smaller, less aggressive supercharger will add less horsepower than a larger, more powerful one.
* Installation and Tuning: Proper installation and tuning are crucial. A poorly installed or tuned supercharger can actually *reduce* horsepower or cause engine damage. A professional installation and custom tuning will maximize the gains.
* Supporting Modifications: Other modifications, like upgraded fuel injectors, exhaust system, and possibly even the engine internals, will significantly impact the horsepower increase. Without these, the supercharger may be bottlenecked and not realize its full potential.
You could see anywhere from a 50-200+ horsepower increase, depending on the factors listed above. To get a more accurate estimate, you'd need to specify the exact year, model, and engine of your Blazer, as well as the specifics of the supercharger kit being considered. You should also consult with a performance shop specializing in Chevy Blazers. They can provide a much more accurate prediction based on their experience.
