How much HP/Boost can internals hold?

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Old Apr 2, 2003 | 12:13 AM
  #7  
mmboost's Avatar
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From: Longing for my ol' white '02 WRX :(
Car Info: 2016 Acura RDX ... meh. Um, nice subwoofer?
Whatever is in that picture, if it was sold from a dealership in the US, it wasn't a WRX.

jason
Old Apr 2, 2003 | 12:41 AM
  #8  
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From: Alameda, CA, USA
Car Info: 02 Black Legacy GT
It is called 2.5RS not RS2.5.

You all need to chill.

However, Steve, There is no way you car makes 315HP with just those mods.

- Alex
Old Oct 24, 2004 | 11:20 AM
  #11  
BugEyedFreak's Avatar
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From: Chapel Hill, NC
Car Info: 2002 WRX, WR Blue
Nobody answered this poor guy's question, everybody's just too busy fighting.

1. It all depends on how hard you use the car and if it's properly tuned. The EJ20 is a pretty strong engine. I'm making 250hp at the wheels @19psi with no problems. You need to upgrade injectors/fuel pump and invest in some sort of engine management if you're going with anything other than the stock turbo.

2. They never made a 2dr WRX in the U.S. 2dr WRX's were produced for Europe and Japan, but only in the GC8 bodystyle (pre-2002.) All 2002-present Imprezas and WRXs are 4 or 5 door, and all American WRXs are 2002-present. So, no USM 2dr WRX. You can turbocharge a 2dr 2.5RS as the EJ25 was built to be a turbocharged engine. It can get sort of expensive, though.
Old Oct 25, 2004 | 08:00 PM
  #12  
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From: Knoxville, Tennessee
Car Info: 2004 WRX in WR Blue
I stay at a constand 16.5 psi, right below the fuel cut off. The WRX can handle 18 psi safely but i would not go up much more then that. Our engines are not made like the evo or neon
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