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Recommended Usage: Street Use – Commercial Use – Road Racing – Drag Racing
Positive Points: 1)Lots of flexibility 2)Lower discharge temperatures 3)Great reliability 4)Easy to install
Negative Points: 1)Not as much power at low RPMs as Roots or Screw type superchargers 2) Some parasitic loss of power through turning of the drive belt
Manufacturer Availability: Paxton – Powerdyne – ProCharger – Vortech – Roots Type Supercharging
The Roots Type Supercharger is the first style supercharger that was ever used and can be dated back to the 1800’s when the Roots brothers designed it as an air conveyor for mine shafts. Roots blowers act like air pumps (not compressors), and in general, Roots blowers have two or three lobe rotor design, depending on the size of the case. Roots blowers will give you positive pressure to your motor from just a crack of the throttle, and will give all that they have to offer at full throttle no matter what rpm of the motor. Roots Type Superchargers may look awesome hanging out of the hood and are great for those looking for drastic power increases at lower rpm’s. Roots blowers are also extremely reliable and require very little maintenance, which is why Ford, GM, Mercedes, Jaguar, and Aston Martin all have featured Roots blowers as original equipment on select high performance vehicles.
Recommended Usage: Street Use – Towing – Extreme Drag Racing- Show Vehicles
Positive Points: 1)Boosts throughout the entire rpm range, right off idle 2)Highest potential for Gain (a must-have-for-all-out drag racing) 3)Great appearance & stature (most common supercharger type for show vehicles)
Negative Points: 1)Sometimes violent throttle response 2)Lower boost ratings at higher rpm’s 3)Higher than normal discharge temperatures 4)Lengthy installation times
Manufacturer Availability: B&M – Holley – Weiand
Screw Type Supercharging Screw type superchargers are derived from the Roots type concept but with vast improvements for street use. Although from the outside, screw type superchargers may look a lot like Roots type superchargers; on the inside you will find a twin-screw design that compresses air unlike Roots type superchargers which pump the air into the motor. Screw type superchargers have an axial-flow design that compresses the air as it moves between the screws to create positive pressure without creating the heat that Roots type superchargers can create. The Screw type supercharger’s ability to produce a dramatic increase of power from idle and through out the rest of the power curve make them a great choice for heavy vehicles, towing or commercial use.
Recommended Usage: Street Use – Towing – Road Racing – Drag Racing
Positive Points: 1)Great power at low rpm’s (great for towing) 2)Lower discharge temperatures 3)Factory fit & appearance 4)Great reliability
Negative points: 1)The power doesn’t keep climbing in the high rpm’s (power curve is very flat) 2)Challenging to achieve high boost levels or CFM’s 3)Lengthy installation times
Manufacturer Availability: Jackson
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