What does upgrading a supercharger pulley do?
Pulley upgrades can offer supercharger driven speed increases from 6% to 16%. It is generally accepted that a 10% blower speed increase on these cars gives about a 2. Supercharger or turbocharger A turbocharger works with the exhaust system and can potentially give you gains of 70-150 horsepower. A supercharger is connected directly to the engine intake and could provide an extra 50-100 horsepower.Keep in mind that a 50-percent power boost is a near-perfect-world scenario, and because superchargers are connected directly to the crankshaft, they do sap some efficiency from the car. On average, adding a supercharger will give you a supercharged horsepower boost of about 46 percent with 31 percent more torque.