Boost is positive pressure in the manifold, so you only see boost when you give the gas pedal heavy load. The best way to check the boost pressure is to connect a vacuum hose to a boost gauge. This will tell you the exact boost pressure when you are in wide open throttle.
Using a larger pulley on a supercharger will reduce the boost pressure because the supercharger will not be spinning as fast. Conversely, using a smaller pulley will increase the boost pressure as the supercharger will spin faster. It is important to carefully select the pulley size to achieve the desired boost level without overworking the engine.
A supercharger is controlled by its pulley size. The smaller the supercharger drive pulley is, the higher in boost pressure you will see. Now if you go with a larger crank pulley, this too will cause you to see more boost. So, in all honestly, the only way to really over boost your supercharger is when you mess around with the pulleys.
A boost gauge in an internal combustion engine has the role of a pressure gauge. The gauge indicates the manifold's air pressure or a turbocharger or supercharger's boost pressure.
The most common and normal signs will be: * Oil leakage from the supercharger * Supercharger making a knocking noise * Lower or no boost pressure * Oil not present inside the supercharger
check your fuel filter.
Boost pressure is the amount of pressure above normal atmospheric pressure the turbo/supercharger is producing. Can be expressed in PSI (US used) or BAR (mainly outside the US). BAR = (boost pressure) * 14.7 (atmospheric pressure) / 14.7 (atmospheric pressure), an example 8psi of boost equals: 14.7+8/14.7 = 1.54bar
TurboCharger... Because you can control your RPM levels to prevent boost, while on a supercharger, boost is always present. On the other hand, at full boost Superchargers are more fuel efficient.
supercharger is belt driven and turbo is exhaust driven. supercharger boost is based on rpm and turbo boost is based on load and exhaust volume.
The supercharger on a GTP is open to full at full boost bar and at that rate the normal 7.5lbs of boost increases to 10.5 at wot( wide open throttle).
A supercharger does not make power the engine does. So the amount of power made is determined by the engine the supercharger is installed on and the amount of boost that the supercharger provides. There are also different types of superchargers that operate differently. Positive-displacement and dynamic compressors make different amounts and types of boost.
You can put a supercharger on a stock engine it depends on how much boost you run wether your engine can handle it or not.
A supercharger increases the intake by compressing air above atmospheric pressure, without creating a vacuum. This forces more air into the engine, providing a boost. With the additional air in the boost, more fuel can be added to the charge, and the power of the engine is increased. Supercharging an engine adds an average of 46% more horsepower and 31% more torque.