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9-3 Sedan, Cabrio ('04+)/Combi & 9-3X Performance Mods & Tuning - ALL ENGINES Covers GENERAL Tuning & Performance modifications that are *non-engine specific* in nature

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  #1  
Old 15th July 2008
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skos skos is offline
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Default Supercharger and charge cooler details

Hope this helps someone.


Supercharger and charge cooler details
The LS9’s R2300 supercharger is a sixth-generation design from Eaton, with a case that is

specific to the Corvette application. The supercharger features a new four-lobe rotor design

that promotes quieter and more efficient performance, while its large, 2.3-liter displacement

ensures adequate air volume at high rpm to support the engine’s high-horsepower

aspiration. Maximum boost pressure is 0.72 bar.

The supercharger is an engine-driven air pump that contains a pair of long rotors that are

twisted somewhat like pretzel sticks. As they spin around each other, incoming air is

squeezed between the rotors and pushed under pressure into the engine – forcing more air

into the engine than it could draw under “natural” aspiration. The rotors are driven by a

pulley and belt that are connected to the engine’s accessory drive system.

Because the pressurized air is hotter than naturally aspirated air, the LS9 employs a liquidto-

air charge cooling system to reduce inlet air temperature after it exits the supercharger –

reducing the inlet air temperature by up to 60 degrees Celcius. Cooler air is denser and

allows the engine to make the most of its high-pressure air charge. The charge cooling

system includes a dedicated coolant circuit with a remote-mounted pump and reservoir.

The design of the supercharger case and its integrated charge cooling system was driven by

the space and dimensions afforded under the Corvette’s hood. To that end, the charge

cooler was designed as a “dual brick” system, with a pair of low-profile heat exchangers

mounted longitudinally on either side of the supercharger. Coupled with the supercharger

itself, this integrated design mounts to the engine in place of a conventional intake manifold

and is only slightly taller than a non-supercharged 6.2L engine. The air inlet and rotor drive
pulley are positioned at the front of the supercharger.

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  #2  
Old 15th July 2008
Sirhc Sirhc is offline
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Dude where did you get that information it looks like it came right off a product description?? and only covered twin screw superchargers, what about centrifical superchargers which are designed and look like turbochargers?? I've attached a picture of the alpina B7 below.


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Old 15th July 2008
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thats very interesing if you have a corvette, this is a saab forum and we have turbo chargers not super chargers
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Old 15th July 2008
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skos skos is offline
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boxman vbmenu_register("postmenu_1290955", true); your correct. However you can put a supercharger on a Saab. And there is currently another link that it is discusing that.
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