Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

I am looking at buying a 04 STI with some mods...

Old Aug 26, 2009 | 10:06 AM
  #1  
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I am looking at buying a 04 STI with some mods...

I need some help here. The owner says the previous guy did all the engine work, turbos suspension. Well, I know he was on here prior to him selling the car. His name was Hunter and he lived in the San Fran area I guess. I am trying find out if the engine was indeed built up to handle the extra power. In the parts list I didn't see any pistons or rods listed so how would someone build up the 2.5L engine with just a Cosworth Piston Ring set and ARP head stud kit?

Feel free to chime in on this. I don't know that much about the Subaru STI but another thing I was told is they commonly misfire from the factory.
Old Aug 26, 2009 | 10:42 AM
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how many threads are you going to make about this?
Old Aug 26, 2009 | 10:44 AM
  #3  
l ANTHONY FTW l's Avatar
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dont buy his.... buy mine LOL..... mine is pretty modded i can get you receipts of all mods.
Old Aug 26, 2009 | 01:46 PM
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Post his mod list - I don't know that people ever rebuilt a motor with JUST rings and the head studs. I mean you COULD, if the rings failed but most people would spend the extra 300 bucks to throw in forged pistons while they were at it.

Looking at his project thread which states a "safe 390whp tune" I don't think there's much problem with an STI with 500 horsepower, as so many people with even bigger power setups on the stock motor have 30, 40, 50k miles on their builds. It really depends on how the driver thrashed the car and that's up to you to decide.

Just keep around $4000 in cash laying around to rebuild the shortblock in case something happens.
Old Aug 26, 2009 | 03:05 PM
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Sorry for posting this in a few locations. I am talking to the owner and I wasn't sure how fast I would get a response. Some forums don't have people that check them very often. Here is what was listed.
--------------------------------

APS SR55 TURBO UPGRADE (RATED 550-580HP) $2025
>
> APS DR 725 FRONT MOUNT INTERCOOLER $1500
>
> APS FLEX UP PIPE $379
>
> APS SR55 OIL LINE $80
>
> APS OIL FITTING FOR SR55 $55
>
> BORLA HEADERS $500
>
> WALBRO FUEL PUMP 255L/HR $120
>
> INJECTORS $220
>
> STREETWIRES ULTRA FLOW/WIRE MANAGEMENT $181
>
> GREDDY BLOW OFF VALVE $220
>
> PERRIN BIG MAF $210
>
> ARP HEAD STUD $290
>
> COSWORTH PISTON RING SET $98
>
> COBB TUNING AP $665
>
> BOOST CONTROLLER $170
>
> CARBONETIC TWIN CARBON CLUTCH $2338
>
> ZERO2E PILLOW BALL GD $1710
>
> CE28N 17X9.0 $1830
>
> 245/40/17 BRIDGESTONE POTENZA RE-01 $825
>
> HAWK CERAMIC $204
>
> TEIN FLEX COILOVERS $1657
>
> CUSCO FRONT STRUT BRACE $150
>
> CUSCO REAR 40MM STRUT BRACE $185
>
> PERRIN REAR ADJ 22-24MM SWAY BAR $214
>
> PERRIN REAR END LINKS $125
>
> PERRIN FRONT 22MM SWAY BARS $139
>
> FRONT SWAY BAR E-LINKS $130
>
> SWIFT COILOVER SPRING $267
>
> OPTIMA YELLOW TOP $233
>
> JDM FRONT GRILL $95
>
> DENSO SPARK PLUGS $70
>
> STI FRONT LIP SPOILER $559
>
> DEFI GAUGE POD $181
>
> PIONEER HEAD UNIT 4SPEAKERS $551
>
> INSTALL COIL OVER’S AND SPRINGS
>
> TUNE SUSPENSION, FENDER ROLL, BALANCE $1147
>
> ENGINE BUILD LABOR $2800
>
> CAT BACK EXHAUST $500
>
> AFTERMARKET FENDERS (PAINT, INSTALL) $1500
>
> TURBO TIMER $200
>
> HURST SHORT SHIFTER
>
> PYTHON ALARM $350
>
> ELECTRONIC INSTALLATION $1573
>
> 30K SERVICE $450
Old Aug 26, 2009 | 04:00 PM
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Several of the mods in that list are spelled wrong or incomplete ("injector - $220" huh?). And who includes "30k service" as a mod? or "tune suspension"

The wording of the mod list leads me to believe whoever typed that list is not that knowledgeable about Subarus, or has been around performance cars that much - usually people will list their mods in a very concise and straightforward format, newbies will give you the longest list possible, documenting all the insignificants. I don't want to make assumptions or be prejudiced, but if it were my money this would be a red flag that a guy basically bought a car, maxed out his credit cards to dump a bunch of money into it, and isn't much of a gearhead.

I'd sooner buy a car from a guy who's taken his car to trackdays than buy from a guy who doesn't know much about the mods he put on his car.
Old Aug 27, 2009 | 08:34 AM
  #7  
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Thanks, the overall opinion(including people who know the car) say to stay away. So I will. Thanks guys.
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