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Old 08-06-2010, 12:43 PM   #176
rexblake
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Quote:
Originally Posted by thirdlobe View Post
I am looking for 350whp. I was reading in the FAQ's and they said that 400whp was the point where these motors need to be built and thats why I thought 350whp would be fine.

The car has a V.8 STI 6 speed tranny in it now.
Tranny's good then. 400whp is when sti's need to have their motor's built. 2.0s go around 300whp, at least that's the most I would say you could reliably run. 350whp you definitely would want forged internals.

You will need to add fuel injectors (1000cc's ought to work), fp (walbro 255), and turbo. Depending on if you have access to high octane, that really determines what size of turbo you should go with. I'd say something at least 44lbs/min (td05 7cm 20g).
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Old 08-06-2010, 02:10 PM   #177
thirdlobe
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Quote:
Originally Posted by rexblake View Post
Tranny's good then. 400whp is when sti's need to have their motor's built. 2.0s go around 300whp, at least that's the most I would say you could reliably run. 350whp you definitely would want forged internals.

You will need to add fuel injectors (1000cc's ought to work), fp (walbro 255), and turbo. Depending on if you have access to high octane, that really determines what size of turbo you should go with. I'd say something at least 44lbs/min (td05 7cm 20g).
I dont want to buy parts over and over again so where would I go about finding that turbo. I guess I could always just run lower boost till I am ready to hit that 350whp mark.

thank you for the help.
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Old 08-06-2010, 02:41 PM   #178
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Check out Blouch Turbo. http://www.blouchturbo.com/turbos/WRX_20G_XT/

Lower boost works for sure. Do you have E85 in your area? That should help a bit with spool as well, plus give you safer power.

Also, don't for forget, you will need a tune with the new parts.
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Old 08-06-2010, 03:09 PM   #179
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Quote:
Originally Posted by rexblake View Post
Check out Blouch Turbo. http://www.blouchturbo.com/turbos/WRX_20G_XT/

Lower boost works for sure. Do you have E85 in your area? That should help a bit with spool as well, plus give you safer power.

Also, don't for forget, you will need a tune with the new parts.
Funny I was just on that site and called them for some info and they even said not to do it. I have not done the trade yet but I am now thinking to just possibly pick up a 06-07 WRX they said that will do what I want "reliably"

I am pretty much back to square one again... lol Thank you so much for the help guys!
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Old 08-26-2010, 09:42 AM   #180
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Guys you have been a HUGE help! This shows me how great this community is on NASIOC! I have ended up with a 2007 STI. My mission is still about the same and maybe more so towards the 380WHP range. Here are the current mods on the car and I will supply a link to the car as well so you guys can see what I picked up.

Under the hood:
EFI Logics protune-277/310
Acessport v2
Invidia v2(catless DP)
Blitz Nur Spec-R cat back
Zerosports intake pipe
Forge Bpv:tup:
Snorkus removal.

Link: http://forums.nasioc.com/forums/show....php?t=2021770

Thanks,
Phil
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Old 09-19-2010, 11:53 AM   #181
rdieder
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I just purchased a used 07 STi a month ago, i'm getting sick of the sound because its too loud. I think its an ebay setup that came on it, what is a good quiet system for DD?
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Old 09-19-2010, 12:07 PM   #182
Davenow
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Exh system?


Its SO subjective of a choice man. Tough to say.

I know I LOVED my TurboXS setup, with the standard (not the RFL) muffler.

The Prodrive is also an incredible axleback (you would need a system that uses a stock fitment axleback section, like the TurboXS stealthback)

The Greddy EVO II is fairly quiet from what I have seen (although its been years)
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Old 10-20-2010, 04:22 PM   #183
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Quote:
Originally Posted by rdieder View Post
I just purchased a used 07 STi a month ago, i'm getting sick of the sound because its too loud. I think its an ebay setup that came on it, what is a good quiet system for DD?
cobb, and the greddy evo2. i've ran the cobb (minus the taper) for 2 years and love it. i had an hks hi power b4 and it was a bit much for the wife on long car rides.
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Old 10-21-2010, 01:17 AM   #184
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great post
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Old 10-22-2010, 12:51 AM   #185
boostaddict
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Ok, my current setup...

'03 WRX Wagon
K&N CAI
PDE UP & Catless DP
Borla Hush CBE
Cobb AP w/ Stage 2 map
Manual Boost Controller @ 18.5 lbs.

Car has 105,000 miles and is driven hard daily. It has run great on this setup for the last 40,000 miles, and 30,000 miles before that at 16.5 lbs. It now has some issues that I suspect may be injector related.

First question... for comparison, do you have any rough estimate on what kind of whp I might be putting down now? Based on whatever dyno, doesn't matter.

Now, what could I expect to put down with the following upgrades? And suggestions are welcome here.

Big 16G
Injectors (What size?)
Fuel Pump
ARC (or other) Big TMIC
Professional Dyno/Road Tune

I will probably go to a 3 port BCS instead of the manual controller. I'll probably also ditch the Cobb AP and go open source.

Thanks.
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Old 10-25-2010, 12:15 PM   #186
akdmx
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Hey, I'm looking for some suggested bolt-ons to finish up my set up before I get my dyno tune. I'm looking for 235whp (+/-10) with a heavy emphasis on fast, early throttle response.

2002 WRX 85k miles
Cobb catted TBE
Grimmspeed UP + Crosspipe (both coated)
APS 65mm CAI
Gimmick MAF hose + inlet
STi TMIC
Walboro 255
Grimmspeed 3 port EBCS

I'm probably going to boost ~17+ psi

How is my goal looking? Can you think of any parts I should definitely consider before going in for my tune?

Thanks!
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Old 11-09-2010, 09:14 AM   #187
JPN4
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sweet
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Old 11-10-2010, 11:18 PM   #188
SCOTLAND
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I live in MA. Pretty much at sea level. I own an 07 Impreza 2.5i w no mods. What h.p. am I making stock. And what easy mods can I do? To gain another 100 h.p., such as a chip, cold air, and such!? Not a whole lot of $$$ to toss around. Please help!! Thanks from brand new Scoob nube!!!
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Old 11-10-2010, 11:47 PM   #189
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100 hp? I hope you have enough to build the motor. You bought the wrong car. What you want is going to cost many thousands of dollars.
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Old 11-11-2010, 12:20 AM   #190
SCOTLAND
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Well just got a settlement of $150,000. Was just seeing what cheap mods I can start with to close the gap. I am brand new to this. And want to build my car right. First Scoob I've owned. Have plenty of $ to toss around but wanna keep budget as low as possible. Looking to the Scoob gurus for help!!!!
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Old 11-11-2010, 12:24 AM   #191
Byzantium
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Any reason you didn't get a WRX in the 1st place? That's your 100 hp difference right there stock vs stock.
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Old 11-11-2010, 12:25 AM   #192
SCOTLAND
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Most I'd wanna spend is like $10,000!!!! But to start with cheapest first!!
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Old 11-11-2010, 12:34 AM   #193
SCOTLAND
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Just figured I'd start from ground zero. And build it my way. Of course with the help of many knowledgeable people that is. Why buy cookie cutter? When you can build it totally your way. Then no one out there can say they have exactly what you do. Like I said I'm brand spanking new to this. Don't even know all the lingo yet...LOL!!! In fact know nearly nothing. Just that I want a sweet ass ride when all is said and done. Show me the way....please!!!!
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Old 11-11-2010, 07:48 AM   #194
balls2dawalls
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I still have to say I think you picked the wrong platform to start with. My 06 WRX was only 11.2k ... of course it had a fresh motor and needed some TLC... but technically i could've left it the way it was and it would've been a fine car. I just got to start overhauling every dumbazz thing the PO did to it. Even with 100 more WHEEL horsepower in your 2.5i ... (which would require thousands), you still wont touch most 06-07 VF39 WRXs (if you're super new, this means an 04-06 STi turbo (and usually TMIC) swap. I'd say if you're serious about wanting power you should turn right around and trade that puppy in for the WRX... especially if you just got a "settlement". Not trying to burst your bubble about your new subie.. but most people with the 2.5i enjoy the car for other reasons beyond going fast
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Old 11-11-2010, 01:38 PM   #195
shanemavt
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thanks for the post it is a pretty good help to some of us newbs
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Old 12-01-2010, 09:56 PM   #196
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2007 sti, I'd like to get into the mid 300's at the wheels.
So far it has:
'04 block
Killer B Oil Pickup Tube
New '09 Nitrided Crankshaft
New rods
Cosworth bearings
ARP head studs
GReddy head gaskets
Cosworth Timing Belt Guide
GReddy timing belt
Tvg delete
ACT Heavy Duty Clutch


Cobb Cat-Back Exhaust / Invidia Downpipe w/high flow cat
A'pexi Short Ram Intake
Perrin silicone inlet
GReddy Profec B Spec 2 Boost Controller
Blitz FMIC
HKS bov
Labonte water meth
Wideband
255 pump
Stock injectors

I think that covers the performance stuff. Peak boost is 23.5 psi on 93 with meth.
So what is the next step to hit my power goals?

Last edited by AK_Ford; 12-01-2010 at 10:29 PM.
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Old 12-02-2010, 02:14 AM   #197
02NIGHTHAWK112
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Sick post, answered a few questions I must say
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Old 12-29-2010, 06:01 PM   #198
Gallo2011
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Anyone following the Import Tuner buildup of the 2011 STi? So far, with 3 parts, (intake, cat back and up pipe) and Ecutek tune, they've got it to 305 whp and 325 TQ. Baseline is 234 whp on dynapacks. I would be very happy with those numbers, especially since the bill comes to about 2 grand, give or take a few dollars.
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Old 01-10-2011, 12:33 PM   #199
Statixsadek
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1. HP at the Wheels.

2. Dynojet 424 AWD

3. IAG Performance

4. Fredericksburg, VA 22407 about 310 feet above sea level?

5. 93oct

6. No opposed to a FMIC.

2006 WRX Limited Wagon
Stock block and internals
Stock Clutch/Flywheel
Cobb Stage 2 with TBE
Cobb SF intake
STI TMIC
Perrin LWC Pulley

I would like to be sitting around 320-350 WHP. I understand there is alot to do to get there but I would like the opinon of guru's just to see what I may need to do to achieve my goals. FMIC, turbo, fuel ect...

Thanks in advanced
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Old 01-10-2011, 08:23 PM   #200
New02scooby
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okay ive got a stock 02 wrx.(ej20) i would really like to make 280-300whp. and im not really wanting to go internally. looking for bolt ons mostly. injectors.. stuff like that. i want to upgrade to the 16g turbo, im going to do a FMIC cnversion, lightweight pulley. and i need to know some tips about my fuel upgrades and stuff. im on a 1000.00 budget right now. running 93 octane fuel. and ive got a injen short ram. please pm me people about some help

Last edited by New02scooby; 01-10-2011 at 08:32 PM.
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