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Old 09-04-2009, 01:25 AM   #1
mems3
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Join Date: Sep 2008
Chapter/Region: PRSIC
Location: San Juan, Puerto Rico
Vehicle:
2008 WRX Sedan
OBP

Default Turbocharging an RS

I'm on my way to turboing my RS, its a 2002 2.5 RS. I have:

wrx headers
wrx up-pipe
wrx down-pipe
wrx td04 turbo
wrx crossmember
wrx catback

anything else i'm missing? Im looking forward to buying a EMS hydra so i can carefully tune it so it doesnt break... im looking for at least 5-6 Psi... will i need bigger injectors of fuel pump. can i run for now without stock ecu? can i just slap all those things on and magically work? my mechanic has done this before but I personally want to know from you guys before he tells me what i need?

thanx

no turning back now
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Old 09-04-2009, 02:18 AM   #2
rolosti
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mas facil... walbro 255, 10:1 o 12:1 FMU, turbina wrx, wastegate externo, intercooler culakiera front o top, up y downpipe de moflera, y computadora de fabrica e inyectores de fabrica. vas a star super contento creeme. saludos!
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Old 09-04-2009, 07:46 AM   #3
Odyknuck
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A $1600.00 Hydra is overkill for a 6 PSI Boost motor. A $500.00 Greddy Ultimate will do 6 psi just fine. Unless of cource you are planning a lower compression higher Boost motor in the future. If money is no object then go with the Hydra. It will take the Piggy Back pain away however it will take longer to learn how to tune the Hydra. You will get many opinons on what to do for an ECM.
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Old 09-04-2009, 11:21 AM   #4
2milehi
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Does you car have a MAF sensor? With a MAF, the ECU can sense the extra air flow and compensate. A MAP based ECU is a whole different ball game.

You'll also need a WRX water pump, an intercooler, and some various silicone hoses/couplers.
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Old 09-04-2009, 11:46 AM   #5
SomeoneWhoIsntMe
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Join Date: Oct 2007
Chapter/Region: MWSOC
Location: h8mvmt.com
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2002 WRX Wagon
PSM

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megasquirt it if you want standalone EMS

as mentioned earlier, you're going to need a walbro, and quite possibly injectors. also, check to see if the WRX fuel pressure regulator is different than the RS one. if it is, you're going to want the WRX FPR, or an aftermarket one.

also, I'd try and find a shortblock from a turbo car and rebuild it for when you blow up your stock bottom end
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Old 09-06-2009, 03:12 AM   #6
mems3
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im in doubt because i have no idea what kind of sensor my car has.... any one know?
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Old 09-06-2009, 09:57 AM   #7
Abest10
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Another thing is Coolant/oil lines for turbo. And finding a place to plumb those into. and I think 02 RS's are MAP based. Can't confirm though.
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Old 09-06-2009, 02:12 PM   #8
silentt
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