What do the numbers on a supercharger mean?

In terms of sizing, it all comes down to the volume of air that the supercharger can cram into the cylinders of the engine each time the supercharger spins around. The ratings for superchargers are therefore given in L/rev (litres per revolution) or cc/rev (cubic inches per revolution).

What are the 3 supercharger types?

There are three main categories of superchargers for automotive use:

• Centrifugal turbochargers – driven from exhaust gases.
• Centrifugal superchargers – driven directly by the engine via a belt-drive.
• Positive displacement pumps – such as the Roots, twin-screw (Lysholm), and TVS (Eaton) blowers.

What is blower overdrive?

Roots Blower Overdrive. This means that with the pulley combination of the top pulley and the bottom pulley, the blower is turning 16.5 percent faster than the actual engine RPM.

What does porting a supercharger do?

Porting the supercharger reduces turbulence, inlet air heat build and in turn power drop.

Does a supercharger use more fuel?

Because a supercharger uses the engine’s own power to spin itself, it siphons power—more and more of it as engine revs climb. Supercharged engines tend to be less fuel efficient for this reason.

Which type of supercharger is best?

Centrifugal Superchargers These superchargers are amazing for daily driving purposes. The centrifugal superchargers look like a turbo and act like a turbo, but are belt driven by the crankshaft. The two best brands we use for these types of setups are Procharger and Paxton.

Can you adjust boost on a supercharger?

You can put a smaller pulley on the blower which increases the boost, so the answer is yes you can increase the boost but no its not as easy as it is on a turbo.

How much HP will a blower add?

Usually with a mild blower cam and a larger carburetor you can expect a typical small block to produce anywhere from 360 to 400 streetable horsepower. The addition of a set of good heads can boost this into the 440 to 470 hp range. Torque on an engine of this type typically will be in the 400 to 440 Ib.

Is porting a supercharger worth it?

Porting is worth it if you want more power and for the price it makes sense. If you don’t try to accelerate hard, never put sticky tires on your car, then probably not worth it.

Can you port a supercharger?

You need a phone to call Bob and a box to ship the blower in. Stiegemeier is the way to go. If you still want to port your own, do a search in the archives for what happened to guys who did that a few years back. If you don’t already know how, you shouldn’t do it.

Can you turn a supercharger on and off?

A Weiand supercharger can’t be turned on and off in real life, but so what? However, there is a commonly available supercharger out there that has an air-conditioning-compressor-style electric actuation clutch: the Aisin blower used in U.S.-market 1994-1997 Toyota Previa minivans.

What’s the Overdrive Limit on a supercharger in drag racing?

In our particular case, the NHRA mandates that our supercharger has an overdrive limit of 16.5 percent overdrive. This means that with the pulley combination of the top pulley and the bottom pulley, the blower is turning 16.5 percent faster than the actual engine RPM.

What are the different types of Weiand superchargers?

Weiand Superchargers are Roots blowers), centrifugal, and “screw” type. (Note that throughout this tech manual the terms “supercharger” and “blower” are used interchangeably since they mean exactly the same thing.) The centrifugal supercharger is very similar to a turbocharger, except the centrifugal supercharger is driven by a belt off the

What is the meaning of the word Supercharge?

To increase the power of (an engine, for example), as by fitting with a supercharger. To charge heavily or excessively. An atmosphere that was supercharged with tension. To increase the power of (an engine), as with a supercharger. Pressurize.

What does it mean when your car is in overdrive?

A gearing mechanism of a motor vehicle engine that reduces the power output required to maintain driving speed in a specific range by lowering the gear ratio. Informal A state of heightened activity or concentration: shifted into overdrive toward the end of the semester. To drive (a vehicle) too far or too long.