Compound supercharging has been done before, but as it has been mentioned, it is not cheap. The most recent example I can think of is the mr2 from turbo magazine. It is not a simple as slapping a supercharger on there and driving off. You would need standalone engine management, countless hours of tuning, lots of time, $$$, and patience. You would probably need a new hood, you would definitly need a major upgrade to the fuel system, and if I were doing it, I would probably make that engine bullet proof before I went ahead with the sc. You might have to upgrade the drivelineto handle the extra power. BTW, I dont think anybody sells compound supercharging kits.
All the cars I have seen with this are completly custom made. All this being said, if this is done right, it will OWNZ all! You can have instant boost off idle, which would spool the turbo extremly fast.Disengage the sc after say 2500 rpms, and run a good 30 psi off of the turbo.
I think this is one mod that would defintly void your warranty. Its not worth it to most people, but if you have the $$$, go for it! I give mad props to anybody who gets this working right.
Mike
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90 Eagle Talon Tsi AWD - 300 Hp -K&N, 16g turbo, JE pistons, 3in Turbo back exhaust, mild port&polish
03 PT Cruiser GT - 215 Hp-Airbox and Intake pipe silencers removed
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