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.

intake manifold

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Old Jan 22, 2008 | 06:37 PM
  #1  
Gman's Avatar
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From: Norway
Car Info: 99/04 Forester STI
intake manifold

I've done a few searches in here but I haven't found a thread about this.

Has any one here done this kind of work to their car?

To turn the intake manifold arround 180' wil shorten the overal length of the fmic pipes and you will also get much better airflow to the engine.

Tests has shown that this wil increase the HP considrably.On my set up (se pic),before and after I turned the intake arround,36BHP was gained...

Click on PureRacing gallery,then on PureRacing Forester.

comments ?

http://www.pureracing.no/index.php?o...pose&Itemid=57

Last edited by Gman; Jan 22, 2008 at 06:42 PM.
Old Jan 22, 2008 | 06:48 PM
  #2  
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Car Info: 2003 PSM WRX, 80 Brat ready for Chevy 350 Swap.
never heard of this!
Old Jan 22, 2008 | 07:10 PM
  #3  
Gman's Avatar
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Car Info: 99/04 Forester STI
if you take a look at the members cars in the gallery EVERY car has turned the intake arround.This is common to do if you want to get the extra power it brings.This mod is PureRacings speciallity and it works great.

There is one pic in the members gallery of a car with stock intake.Look at the extra bends and length (restrictions) the air has to go thru...
Old Jan 22, 2008 | 07:18 PM
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Car Info: 2003 PSM WRX, 80 Brat ready for Chevy 350 Swap.
i guess if u have a FMIC it would help! but im stickin with the tmic!
Old Jan 22, 2008 | 07:33 PM
  #5  
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Car Info: 99/04 Forester STI
If you have an fmic yes..no need if you have the tmic. logic.

Tmics have restrictions on airflow and capacity to cool the air when you go for big turbo setups.

When you go for fmic do the work on the inlet aswell.
I guarantee gain in bhp and torque.

Just try it and run the car on a dyno.
Old Jan 28, 2008 | 08:02 AM
  #6  
testes1010's Avatar
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From: Evansville, IN
Car Info: 2003 Subaru WRX Aspen White
Originally Posted by wrxisthebest
never heard of this!
Shops have been doing this for years....this isn't something new.
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