I've heard of this component being used on Hot Rods.
- What is a blower?
- What does it do?
- Are there specific requirements for utilizing one?
- Are there any disadvantages of using a blower?
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A 'Blower' is another name for a supercharger, particularly 'Roots' type superchargers that use long figure-of-8 shaped vanes to force or 'blow' air into the engine.
The only 'specific requirements' are that the engine internals are strong enough to cope with the extra power and the fuel system can provide enough fuel to match the extra air from the blower.
In terms of performance, the only 'disadvantages' to using a blower is that it is belt driven from the crank. It uses some power from the crank to turn the blower, which is power that could otherwise be driving the wheels. This is, of course, offset by the fact the blower enables the engine to make much more power.
Turbo just for completeness. A turbo uses the exhaust gasses being pumped out of a car to spin an impeller which in turn spins a propeller. This creates pressure simply due to volume of air being moved rather than keeping the air from escaping.
Centrifugal is a belt run turbo more or less. You have just the propeller half of a turbo connected to the crank via a belt similar to a how a supercharger is run. Like the turbo this requires high RPM to generate the PSI
Roots type is an air pump with tight tolerances forcing air through giving high pressure with relatively low RPM.
which one is best? anything but a turbo? But that is my opinion.