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1. Racing Car Parts Store Published By: https://www.fosterscmods.com/supercharger-whine-the-sound-of-power/

2. Supercharging by far has the most visual impact of any high performance modification. There are some basic concepts that should be understood in order to achieve the best results for a given application. One of the fundamentals is that you have a defined end result in mind before you start. Do you want a maximum performance that demands special fuels and constant adjustment, or do you want a car that runs on pump gas and can potentially be driven on a daily basis? Either application really is a question of set up. It is possible to have any degree of the two extremes provided the relationships between components are correct. Lets look at more of the details on how a blower works.

3. Conceptually and internal combustion engine is nothing more than a pump. Most high performance modifications are aimed at increasing flow of this inherently inefficient pump. Under normal atmospheric pressure the displacement of an engine dictates how much fuel/air mixture it can ingest. Camshaft selection special intakes, or pocket porting can make the flow from the carburetor smoother, but the engine still has limitations on its actual physical capacity to suck in a measured amount of the air/fuel mixture. Supercharging certainly will effect airflow, but more importantly it effects air density or how much air actually is trapped in each cylinder on the compression stroke. The blower basically "fools" the engine into thinking that its effective displacement is larger than it actually is by forcing more air in the same small cylinder space. Forcing air by means of a crank driven pair of rotors will push pressurized air in each cylinder creating more fuel mixture resulting in a more forceful explosion. The end result of this is more horsepower, but what you can really feel is the tremendous increase in torque.

4. Typically a blower will sit on the top of the intake, and be driven by a gilmer toothed belt to eliminate any possible slippage. Surprisingly, even if the blower had no belt the engine vacuum can slowly rotate the rotors allowing the engine to operate. The most common automotive blower design is the "roots" blower, which actually is a pair of rotors that trap air between each other as they rotate, and push this pressurized air through the intake. This is why blower drive ratio, or the relative size of the upper and lower pulley is so important. The more you overdrive, or turning the blower rotors faster than the crankshaft, the more boost you get. Big pulley on top is underdrive and big pulley on bottom is overdrive. If your base compression ratio is low enough, say in the 7:1 or 7.5:1, you can actually overdrive the blower on 93-octane gas. If on the other hand you have a 9:1 or 9.5:1 compression ratio 12% to 15% underdrive can still work. Keep in mind that its not any one modification variable, but rather the combination that's important.

5. Summary: Foster SC Mods a pioneer in Supercharger and Sound Tube enhancements. All their kits have undergone extensive development to give you the absolute best results possible and maximum rotor sound. Visit this site to learn more: https://www.fosterscmods.com/supercharger-whine-the-sound-of-power/