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Old 11-17-2000, 02:38 PM   #1
Scooby Specialist
Member#: 2543
Join Date: Oct 2000
Location: Charlotte, North Carolina
2002 wrx

Post What's the difference between turbo and a supercharge?

I just wanna know what's the difference between the supercharge and a turbo. I know most of the info about the turbo and I dont know jack about superchargers. Well, what I wanna know is which one is better? do the supercharger need a intercooler? etc,etc,etc.

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Old 11-17-2000, 02:50 PM   #2
Scooby Specialist
Member#: 2683
Join Date: Oct 2000
Chapter/Region: South East
Location: Atlanta, GA
2011 STi 5-Door


Both units do basically the same thing: compress the intake air before it enters the cylinders so that there's more oxygen.

Superchargers run their compressor off the crankshaft of the engine, just like the A/C compressor or power steering pump.

Turbos run their compressor off of engine exhaust gas which spins a turbine which spins the compressor.

Superchargers normally give less lag at low rpm ranges than turbos, but may put more wear on your engine and usually don't give as much of a performance gain at the peak. Turbos lag because the exhaust gases have to spin the turbine up to speed before their compression really takes effect.

This has been a really rambly answer, but I hope it helped. I also don't claim that all of this info is 100% correct, but it's the way I've learned it.

Ross N.
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Old 11-17-2000, 02:57 PM   #3
J Colman
Scooby Specialist
Member#: 1259
Join Date: Apr 2000
Location: Ashburn, VA
1999 Impreza RS
Rally Blue Pearl


From what I gather, there are much more reliable turbo set up's for this car at the moment than Superchargers.
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Old 11-17-2000, 04:27 PM   #4
Scooby Newbie
Member#: 681
Join Date: Dec 1999
Location: Square One

Hey, post this in the "newbie" section for crying out loud!!

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Old 11-18-2000, 01:58 AM   #5
Scooby Guru
Member#: 2452
Join Date: Sep 2000
Chapter/Region: SCIC
Location: Burbank,California, USA
08 2.5 WRX
WRB Mica


Some good shiz grimlock. I really didn't know that myself..
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Old 11-18-2000, 11:29 AM   #6
Scooby Newbie
Member#: 2959
Join Date: Nov 2000
Location: Dalton, GA., USA

Turbo... GGOOOODDD. Supercharger... BBBAAAADDD.
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