Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

How much additional approx hp will I get?

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Old Oct 20, 2004 | 12:02 PM
  #1  
gooder77's Avatar
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From: Sparks, MD
Car Info: 2002 psm wrx
How much additional approx hp will I get?

I've got turbo xs stealthback (catless), ic hoses (uninstalled), and may get a helix up. What do I stand to gain over stock?

catless stealthback: 20-25 hp
helix up: 15-20 hp
ic hoses: ?? guessing 1-3 hp if any

Unless my math and the figures are off can I expect to get at least 35 hp? I've seen those approx figures on the forums, but didnt know if that's whp.

TIA,
Ryan

Last edited by gooder77; Oct 20, 2004 at 12:34 PM.
Old Oct 20, 2004 | 01:15 PM
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when I switched my UP to a STI catless UP I gained 8 hp(peak) at the wheels.

Jason
Old Oct 20, 2004 | 01:18 PM
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I would say about 50ish HP at the crank approximately ...
Old Oct 20, 2004 | 01:39 PM
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Thanks for the replies.
Old Oct 20, 2004 | 01:48 PM
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Thanks for the replies.
Old Oct 20, 2004 | 10:25 PM
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Get the Cobb AccessPort set at Stage 2 and you'll make damn near 300hp to the flywheel. I have a totally catless setup with IC hoses and the AP and I make about 300 to the fly. Cobb claims 285 to the fly, but that's without the catless uppipe. 300hp is a pretty good estimation.

psycho
Old Oct 21, 2004 | 10:47 AM
  #7  
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Originally Posted by psychobooe
Get the Cobb AccessPort set at Stage 2 and you'll make damn near 300hp to the flywheel. I have a totally catless setup with IC hoses and the AP and I make about 300 to the fly. Cobb claims 285 to the fly, but that's without the catless uppipe. 300hp is a pretty good estimation.

psycho

That's for the input. I was just trying to decide if i should go with that Helix uppipe on another thread b/c I plan of doing Cobb stg2.
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