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Old 08-27-2005, 07:16 PM   #1
JessesTalon
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Default Turboing my 00RS, lil help pls

Well I order alot of my turbo kit and should be here soon...


Parts I have and about to get are included, let me know what else I will need...

00 2.5rs

Wrx exhaust manifold, wrx uppipe, wrx turbo, wrx downpipe and mid section, (cats are hollowed out) 22b Intercooler w/ Forge BOV

planning on getting a 5psi spring

on 5psi without the RRFPR Do you think I will need anything else to not blow my motor up in the first day.

Trying to get a turbo crossmember, if not I am going to notch the stock one and make it fit (if thats possible)

wrx turbo is water and oil cooled am I correct?

for water I am thinking about taking the coolant lines that go into the throttle body and make it go through the turbo,

for oil lines I am going to have oil return go into the valve cover, and I still need to find a place to get oil to the turbo (pix would be great of people who have done this)


will my stock o2 sensors fit into the wrx mounted o2 sensor holes?

Also if I drill out 1/4" sized holes on the WG do you think that will work instead of a 5psi spring<-- assuming I can't find one, maybe 2-3 1/4" holes

thanks for your help
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Old 08-27-2005, 08:09 PM   #2
Shane25
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Possibly fuel pump and injecters.. youve got all that air now. with only 5 pounds of boost maybe the stock ones would suffice. also what are you gonna do for a harness? this is a very interesting post and im glad i found it because i was going to post and see what other peoples thoughts were also. My neighbor has the sti turbo, intercooler, fuel pump, fuel rail, and exhaust sittin in his garage and im tryin to research all this and find out what to expect :P
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Old 08-27-2005, 08:39 PM   #3
marc l
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i just finished turboing my car. i have a 99 impreza rs, and since ive just finished with mine its all still pretty fresh in my mind.
for my turbo build i decided not to go with the wrx crossmember. instead im running a twe header into a custom built twe up pipe. as of now i have the only one but were thinking about producing more for people in your situation. after that i went with a dc sport down pipe mostly cuz i had it but anything should be able to work
i think my big situation is running the hydra stand alone, but if you cnat spend that much ive heard that the perfect power is a good model to use for your ecu.
right now according to my boost gauge im running around 12 pounds and im running stock fuel pump and stock injectors, and theres no sign of knock. keep in mind im also running a wrx intercooler.
the turbo im running a vf11 turbo out of a legacy its kinda small but comparable to the wrx i would think.
umm thats all i can think of right now
if you have anymore questions feel free to email me with questions
marcl@techworkseng.com


marc l
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Old 08-27-2005, 08:41 PM   #4
Chi_San
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Glad I decided to go with a supercharger and not a turbo.

I'd suggest lowering your compression ratio if you can, that way you can run more than 5 psi of boost, will have less detonation, and it will be easier to tune. Also, look into alcohol injection.
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Old 08-27-2005, 10:50 PM   #5
Shane25
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12 pounds!??? with 10:1 compression????
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Old 08-27-2005, 11:27 PM   #6
marc l
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better belive it!
i wish that there was a way i could prove that i am but i cant really think of any other way than to tell you...

i also just rembered my motor is running arp studs and cometic head gaskets plus i run 94 octane with an octane booster added to it
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Old 08-28-2005, 12:14 AM   #7
Shane25
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ive got a bunch of questions for you marc... i PMed you
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Old 08-28-2005, 05:23 AM   #8
Kotir
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Quote:
Originally Posted by Shane25
12 pounds!??? with 10:1 compression????
I ran 12psi pump gas (15psi on race fuel) on a small T3 on 10:1...

It's all about good management and tuning (I can't say I had that great of tuning - just really rich LOL)

As far as running without a RRFPR... I wouldn't do it. I don't think you can even run 5psi on the stock ECU without a voltage clamp.

I wouldn't risk it when a RRFPR is so cheap.

IIRC the throttle body lines are considered to be too small for the turbo, although it doesn't need to be water cooled. I used the heater core lines for my setup. Seemed to work fine.
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Old 08-28-2005, 11:48 PM   #9
mybluesubi
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Subaru Stars

From what I'm told you can run your oil line from the oil pressure sensor location under the alternator. I too have a couple questions about turboing. How does the wastegate know when to open or close and what regulates it's opening and closing. Also, where can I find a diagram of what goes where from the air filter to exhaust tip? I'll only be running 5-6 lbs boost cause my engine has high miles on it. (block has 80k and the heads have 264k miles) I'm planning on getting an EJ25 down the road or as soon as I blow up my EJ22.

Last edited by mybluesubi; 08-28-2005 at 11:52 PM. Reason: adding more, why else?
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Old 08-29-2005, 10:22 AM   #10
maxiav
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Quote:
Originally Posted by Shane25
12 pounds!??? with 10:1 compression????
Its a 99rs... 9.7:1 Compression... you'll find most of the 99 guys run that and most of the 00-01 run 8-10.. with exceptions
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Old 08-30-2005, 05:52 PM   #11
JessesTalon
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Anyone have any clue about the oil lines to the turbo...

also a shop told me that the turbo will be too close to the intake manifold (pointed right towarsd it) with all the stock wrx stuff? is it going to be really close or can I make a custom Intake pipe that goes around it towards the abs
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Old 08-30-2005, 05:55 PM   #12
JessesTalon
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Quote:
Originally Posted by Chi_San
Glad I decided to go with a supercharger and not a turbo.

I'd suggest lowering your compression ratio if you can, that way you can run more than 5 psi of boost, will have less detonation, and it will be easier to tune. Also, look into alcohol injection.

I'm looking at the cheapest way possibly to turbo my car..


so far it looks like everything is right around 150-200$
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Old 08-30-2005, 09:42 PM   #13
kgb
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Oil return must go to a place that is lower than your turbo, or else the oil will stay in the bearing and get cooked. Most people tap the oil pan for the return lines.

You need to find a way to pull timing - besides the lack of fuel, the much more advanced timing from the NA ECU is the other factor that kill the block by knocking it to death. Voltage clamp will get you past the ECU and combined with an RRFPR will get you just about enough fuel for 5psi or so. Fuel and timing management is the key to reliability on an RS-T
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Old 08-31-2005, 06:36 AM   #14
Chi_San
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Quote:
Originally Posted by JessesTalon
I'm looking at the cheapest way possibly to turbo my car..


so far it looks like everything is right around 150-200$
You mean, you're going to spend $150-$200 on a turbo setup? Geeze, I can't even find a used turbo for $400.

If you want cheap, don't expect too much. I want to keep costs down in my build, but I'm not gonna cut corners either. Going to rebuild my supercharger, lower the Compression Ratio, maybe put a better crank in, upgrade exhaust, transmission, tires, everything.
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Old 08-31-2005, 12:58 PM   #15
2milehi
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The waterpump is different on the WRX. The WRX exhaust manifold will have clearance issues with RS waterpump - so I have read...
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Old 08-31-2005, 12:59 PM   #16
deuce189
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If you don't yet have the wrx turbo, injectors, or uppipe, I have all available if you interested. Pm me if you are interested.
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