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Old 08-08-2003, 02:39 PM   #1
zakats
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Member#: 41329
Join Date: Aug 2003
Chapter/Region: TXIC
Location: houston, texas
Default need help on my MY00 2.5 RS turbo conv. many questons

MY CAR-->MY00 2.5L RS, Maroon, 5speed, EJ25, stock! I'd give a picture if I knew how, but dont feel like learning

Im attempting to get my project on turbocharging my MY00 2.5RS US spec. started but I want to have a better idea of what im getting into first. I'm not planning on messing with the internals of the engine but if i haveto, I will. My project has to fit under a tight budget! I plan on getting the following parts:

*OE 02 wrx turbo hot/cold
*OE 02 wrx intercooler with aftermarket BOV
*custom built uppipe downpipe 3 1/2"+new exhaust all the way back (also 3 1/2) made by local store using bent piping
*bigger fuel pump and injectors will OE wrx's work??
*>>>!!02 wrx comp????will it work??? or reprog. origional??<<<
*manual boost controller its this a good decision??
*boost and air/fuel guages
*some kind of good MSD ignition
* new cams???--}
* rods?-----------}
*rockers?---------} are these needed
*pistons?---------}
*headgaskets?-}
what would I use for oil lines for turbine?
IS THERE ANYTHING THAT I AM FORGETTING????????

Any help I'd welcome
Im not looking to spend $3k ona kit that I can build myself
i have msn instant messenger feel free to i.m. me @ Zeek659@hotmail.com
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Old 08-08-2003, 03:16 PM   #2
jeffg
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Join Date: Nov 2000
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2001 WRX (GC8)

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Well I will answer what I can, but its very little.

WRX injectors will NOT work in a MY00 RS intake manifold. A MY99 RS manifold would fit both the engine and WRX injectors.

A WRX ECU will NOT work in a MY00 RS. You might be able to make it work, but it would be a big project and require a new harness and things like a MAF sensor and coil on plug ignition.

You easiest and cheapest route might be to eliminate the WRX injectors and ECU and get a rising rate fuel pressure regulator and a MAP voltage clamp. That will give you enough fuel to run a few PSI of boost.

What kind of boost goals do you have?

Sourcing and returning oil will have to be like an aftermarket turbo kit. There is a blank oil galley plug on the rear of the engine. This could be used to feed oil into the turbo. You could return it straight to the pan via a welded in bung and line.

Guages I would run:
Boost, EGT (or a good wideband AF), oil pressure, fuel pressure if you go with a RRFPR.

Other than that I think you can do it pretty easy.

Subachad (or something like that) sells an uppipe and down pipe combo for the RS style headers that puts the turbo in the stock WRX location so intercoolers and what not would work. I saw a few sets in private for sale going for about $400.
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Old 08-08-2003, 03:42 PM   #3
Soon2Bgreat
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Join Date: Sep 2000
Chapter/Region: Tri-State
Location: Irvington, New York, USA
Vehicle:
1999 gc8 ver7 6mt
GT35R 504.7whp;)

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Sent you a PM.
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Old 08-08-2003, 09:46 PM   #4
stimpy
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2008 STI

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3.5" exhaust is overkill, ignition should be ok for the mild goals you have, cams, rods, rockers, pistons, and headgaskets are not needed. If you crack a ring land, and it's a good possibility, most people will purchase an EJ22T shortblock for $1200. For the record, trying to do this on a tight budget is NOT what you should do. If you go ahead with it, plan on being without your car when something goes wrong.

-Jon
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Old 08-08-2003, 10:07 PM   #5
scoobyimprza
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Chapter/Region: MAIC
Location: Littlestown PA
Vehicle:
1997 Impreza WRX
Steel Blue Mica

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yeah, definately keep an open mind with your spending. i only planned on spending around $800 on my kit but i wouldnt be surprised if i've spent twice as much as that.

Brent
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Old 08-09-2003, 08:34 AM   #6
yebokmj
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Chapter/Region: South East
Location: Raymond, NH USA
Vehicle:
1995 Impreza w/EJ257
Brilliant Red

Default 3 1/2?

The exhuast way to huge. 2 1/2 should be more your speed with the kind of kit your pieceing together IE low boost. If you want you can go 3.
Joshua
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Old 08-09-2003, 03:22 PM   #7
zakats
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Location: houston, texas
Default

My logic in saying 3.5" tubing is that this is all wrinkle bent tubing or whatever you like to call it so when its crunched it'll come to about 2.75" or 3". Another thing, I'd like to set a goal of reaching more like 6-12 lbs. maybe I'm dreaming but in the end I'll figure out a way. I think I'm going to go to the salvage yard and see what i can learn or scrounge up, I'm not a scooby guy by nature (more of a domestic V8 guy) but intend on learning, an EJ series engine isn't quite like a carbed 350 chevy!
My new questions are these:
*How do I mount the 02 wrx intercooler what do i need besides the IC
*whats a wastegate i might already know just not what the name is
*will a strong MSD system, a bigger fuel pump and injectors be sufficent for my boost goals and why would i need a comp. when I have more gas & spark already
*I could get my comp. reprog. with a little handheld programer that my shop that I work for sells, I heard it works with all OBD 2 comps. maybe this would work well especially with the fuel delivery changes???

any pictures of instal on a GC8 would be helpfull
once again my email is zeek659@hotmai.com if ud rather PM me

FYI I think I might keep 1 cat.

p.s. I'm working on a web page that I just got started that has at least 1 picture of my impreza @ www.powow.com/zeek659
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Old 08-11-2003, 11:05 PM   #8
subachad
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1993 Impreza GCStyle
Teal

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Check out the project cars on my site, that might help you out.

As for my up pipe putting the turbo in the stock WRX position, that's not true. It would hit the valve cover if that was the case. If you go with my pipes, you can put together a relatively inexpensive kit, but don't expect HUGE increases in power without rebuilding the engine. 5psi is enough for 171 WHP on an RS though, feel free to check out the dyno charts on my site.

If you want to lower costs with my pipes, simply have the downpipe made at an exhaust shop. If you use my up pipe (which I have 2 in stock) it will locate the turbo so you can fabricate all the other parts needed.

Chad
93 1.8T
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Old 08-13-2003, 11:46 AM   #9
linsavy
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Location: Ontario
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1997 GF4-STiV3 clone

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Check out the aftermarket forced induction forum. There is a giant thread there with just about everything you need to know.
You can find out about engine management, fuel delivery, broken pistons, blown headgaskets and shredded transmissions.
Seriously, you are best to have $1500 or so in reserve to buy a new block/tranny when the time comes.

It seems only a few people that are either very expert in turbo applications or those running less than 6 psi of boost have managed to avoid major problems without first swapping engine internals and lowering compression.

Also you will need a heavier clutch to handle the new power.
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Old 08-13-2003, 05:45 PM   #10
akcel
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Chapter/Region: SCIC
Location: San Diego
Vehicle:
gc8 I ride ride 24s
with the top down low.

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i have a splitsecond voltage clamp you may need
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Old 08-13-2003, 10:00 PM   #11
DragonRM
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everyone I talked to just ran into problems putting the wrx turbo parts onto the ej25... most of them were just left wishing they had bought a complete kit pre made for the car... just my 2cp
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Old 08-14-2003, 11:14 PM   #12
subachad
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1993 Impreza GCStyle
Teal

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Quote:
Originally posted by DragonRM
everyone I talked to just ran into problems putting the wrx turbo parts onto the ej25... most of them were just left wishing they had bought a complete kit pre made for the car... just my 2cp
Who on this board are you referring to? Were they having problems with my parts, or the whole conversion that requires the crossmember and such. Talk to Rovah or Darshu, not sure if they are still around but they have had my parts for a while now. Darshu is the one on my site showing 171 WHP with the TD04L at 3.5psi.

Chad
93 1.8T (turboed since 110,000 miles and about to roll 200,000)
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Old 08-15-2003, 02:28 PM   #13
garface
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Chapter/Region: Tri-State
Location: yonkers, ny
Vehicle:
MY00 RS/STi7
MY01 RS Both Silverthorne

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I have a bunch of OEM Subaru parts left over from my STi swap. I have header, uppipe, downpipe, intercooler, all practically new. Contact me if you decide you need any of those parts. garface98@aol.com Thanks.
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