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Old 02-03-2015, 10:19 PM   #1
wallywagon
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Default 700 WHP what do i need?

I'm new to the Subaru world, but not to the built motor, spend your life savings world. I came from Ford with a built 1200 whp gt500 so I know what's necessary in regards to fuel system/rods/pistons/cams/intake/etc. What does it take (without doubt) to get a 2011 WRX non-sti to 700 whp WITHOUT nitrous? I am guessing a built motor (but from who), a new fuel system (what size injectors/pumps and how many pumps (i had 3 465lph in the shelby)), and tranny upgrade (again....from who) are necessary. Any help would be much appreciated!!! Who are the best builders, what size motor do people go with most often (CUI) and what turbo setups are the most ubiquitously used and have the track record to back up the repuation? Thanks guys!!!
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Old 02-03-2015, 10:26 PM   #2
Delphi
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You need to do the following. Read about eleventy billion threads here and talk to a tuner/shop. Also I hope you have a lot of money.

These 3 are good starts.
P&L Motorsports
IAG
Turn In Concepts
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Old 02-03-2015, 10:59 PM   #3
wEaK Squad
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Buy a different car
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Old 02-03-2015, 11:05 PM   #4
wallywagon
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LOL^.

Thanks Delphi! Nothing would surprise me here so I appreciate all info. I will give a hollar to the 3 shops you suggested!
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Old 02-03-2015, 11:25 PM   #5
user1029
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Closed deck
GTX35R
headwork/cams
upgraded fuel system
35psi on E85
+ Typical supporting mods

Done.

You could take all the brainwork you have to do by just shipping your car to IAG + $$$.

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Old 02-03-2015, 11:27 PM   #6
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Quote:
Originally Posted by wallywagon View Post
LOL^.

Thanks Delphi! Nothing would surprise me here so I appreciate all info. I will give a hollar to the 3 shops you suggested!
The bolded part, that guy was serious. I'll even venture a guess and say that getting your gt500 to 1200whp will be cheaper than getting your WRX to 700, reliably.
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Old 02-03-2015, 11:27 PM   #7
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Old 02-03-2015, 11:29 PM   #8
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700hp?

It might hold together for a pass or two. Emphasis on 'might'.
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Old 02-03-2015, 11:30 PM   #9
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Quote:
Originally Posted by DansSpace View Post
The bolded part, that guy was serious. I'll even venture a guess and say that getting your gt500 to 1200whp will be cheaper than getting your WRX to 700, reliably.
Nonsense, he would rather drive this WRX with 700whp 365 days out of the year than a 1200whp GT500 30 days out of the year
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Old 02-03-2015, 11:57 PM   #10
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I was kidding... currently making bad life decisions while chasing a number myself
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Old 02-04-2015, 01:06 AM   #11
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Quote:
Originally Posted by wEaK Squad View Post
I was kidding... currently making bad life decisions while chasing a number myself
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Old 02-04-2015, 01:54 AM   #12
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Quote:
Originally Posted by user1029 View Post
Going to need lots of $5000 free crack giveaways to fund a 700whp STi.


Your best bet is a twin turbo H6 build , But even that will get you into the 20-30k range easily.

Go 2JZ instead.
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Old 02-04-2015, 08:59 AM   #13
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Plenty of threads showing and proving that 700 isn't hard to make reliably... you subaru guys are always bringing up old **** lol
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Old 02-04-2015, 11:51 AM   #14
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Quote:
Originally Posted by wEaK Squad View Post
Plenty of threads showing and proving that 700 isn't hard to make reliably... you subaru guys are always bringing up old **** lol
700whp on a 2.5L 4cyl car is a lot of power. Reliable is relative I guess..
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Old 02-04-2015, 12:32 PM   #15
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700 hp on what dyno? On our dyno 700 whp would run somewhere in the 8's. 500 whp is good for low 10's.

We are just finishing up a 500 whp build on a 2005 STI. Here's the list:

TiC Closed deck Honey Badger Short Block
Kurt Brown ported heads
GSC Springs
+1mm Ferrea Valves
Tomei custom cams
GTX3582 with 1.06 hotside
APS FMIC
Custom piping
EJ255 plastic intake manifold
Accessport tuning
ID1300 injectors
E65 fuel

This will be reliable if treated well and maintained properly. Not simple or cheap to build though.

Tony
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Old 02-04-2015, 01:09 PM   #16
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You definitely need a closed-deck or sleeved block. That's my limiting factor right now. Mine makes 630whp on e85 and I'm probably on borrowed time with my unsleeved STi block.

I'm using a Precision 6266 ball bearing turbo (awesome turbo) but the lag on the 6466 is almost indistinguishable from the 6266. Probably less than 500rpm

Don't skimp on the injectors. ID2000's all the way. Whatever you do, don't buy low impedance injectors and use the AEM injector driver. It's absolute rubbish and will cost you your motor.

I'm on a AEM EMS Series I and have been since the beginning so I cannot comment on whether you can open source tune the OEM ECU or if the Cobb AP will work at your power levels.

Since you are starting with a WRX, you will have to invest in some PPG gears for the gearbox. Even the STi 6MT will grenade at that power level if you're drag racing.

LSD's all around are recommended. I have a stock 5MT center diff in mine and it's held up, but others have had failures at a lower power level. Guess I got lucky.

Money wise: I have well over $40,000 invested in my car not including the purchase price. I'd say about $7.5k of that is JDM appearance parts, suspension, wheels, etc.


IF you decide to do a built 5MT, let me know. I'm pulling my PPG 5MT out to do a 6MT. It has a Carbonetic front LSD and every part PPG makes for that box inside. I also have a R160 diff with a Quaife LSD that can go as a package deal. I'm not trying to push my stuff on you. Just letting you know it's available and can save you a few $thousand.
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Old 02-04-2015, 01:54 PM   #17
69subaru360
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Step 1- Remove Subaru badge.

Step 2- Walk into Dodge dealer and buy a hellcat.

Step 3- install Subaru badge on hellcat trunk.


You'll spend about the same money trying to get a 700 whp Subaru, but the hellcat has a warranty and won't blow up.
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Old 02-04-2015, 02:00 PM   #18
Billboard2001
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Hell, who are we to say it can't be done... Now, should it be done is another question all together. If you have the money (and as everyone has said, you'll need wheel barrows full of it) go for it. Just don't think making power will be as easy as it was on your gt500.
Is e85 or racegas an option for you to hit these numbers? And will you be building this yourself or are you looking to have a shop put it all together for you?
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Old 02-04-2015, 04:39 PM   #19
Honest Bob
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Junkyard LSX + Turbo.
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Old 02-04-2015, 04:52 PM   #20
alfriedesq
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Quote:
Originally Posted by Turn in Concepts View Post
700 hp on what dyno? On our dyno 700 whp would run somewhere in the 8's. 500 whp is good for low 10's.

We are just finishing up a 500 whp build on a 2005 STI. Here's the list:

TiC Closed deck Honey Badger Short Block
Kurt Brown ported heads
GSC Springs
+1mm Ferrea Valves
Tomei custom cams
GTX3582 with 1.06 hotside
APS FMIC
Custom piping
EJ255 plastic intake manifold
Accessport tuning
ID1300 injectors
E65 fuel

This will be reliable if treated well and maintained properly. Not simple or cheap to build though.

Tony
ID 1300 on E65 aint going to make any serious power - those injectors are too small

I am making 420 on a mustang dyno on 93 octane and maxed out on ID1000

-8 fuel line and double pumper

Al
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Old 02-04-2015, 05:19 PM   #21
Delphi
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Quote:
Originally Posted by alfriedesq View Post
ID 1300 on E65 aint going to make any serious power - those injectors are too small

I am making 420 on a mustang dyno on 93 octane and maxed out on ID1000

-8 fuel line and double pumper

Al
Depends on base pressure. Also that list was referring to 500whp on their shop dyno with that build list.

Also OP if you really want a list that will get you started.

Motor

Closed Deck 2.5L from Outfront Motorsport
1/2" Headstuds
Manley Turbo Tuff I-beams
Pistons - Manley, JE, CP - Upgraded wristpins are a good idea.
Head Games Heads
GSC Springs
+1mm Ferrea Valves
Cams - Something like GSC S3's but they have had some issues
ETS Rotated Setup
PTE 6466 Turbo
APS FMIC
N/A EJ25 Long Runner Manifold
Accessport tuning
ID2000 injectors
Walbro 450 at least, maybe a double pumper 255 setup
E85 fuel

Also since you're probably stock, TGV deletes, Air pump deletes.

Drivetrain

Any STI 6 Speed (04 STI 6sp that doesn't have CV stubs in it), but preferably 07+ because of the better gear ratios, even better Spec B 5th and 6th gear.
08+ STI shift linkage
ACT 6 Puck clutch and their heavy duty pressure plate
STI Pressure plate
R180 rear diff to match trans
08+ STI driveshaft
Get creative with rear CV's, have to make a hybrid of your stock CV's and 08+ STI cv's or call Driveshaft shop and get them to make you ones that wont break.


That is a decent chunk of the list.

Last edited by Delphi; 02-04-2015 at 05:30 PM.
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Old 02-04-2015, 05:48 PM   #22
Annihilator817
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You forgot to add 'prayers' to the list.
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Old 02-04-2015, 05:56 PM   #23
Turn in Concepts
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Quote:
Originally Posted by alfriedesq View Post
ID 1300 on E65 aint going to make any serious power - those injectors are too small

I am making 420 on a mustang dyno on 93 octane and maxed out on ID1000

-8 fuel line and double pumper

Al
They will with higher base pressure in a pinch. Dom, our tuner, doesn't really like 2000's and the 1700's aren't out yet.

Tony
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Old 02-04-2015, 06:20 PM   #24
user1029
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Quote:
Originally Posted by Annihilator817 View Post
You forgot to add 'prayers' 'haters' to the list.


Find a reputable shop and 700whp reliable is very possible, it's people like you that make people scurred of the EJ25
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Old 02-04-2015, 06:24 PM   #25
user1029
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HTA86 E85 Kel272s Cos IM

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Quote:
Originally Posted by Turn in Concepts View Post
700 hp on what dyno? On our dyno 700 whp would run somewhere in the 8's. 500 whp is good for low 10's.

We are just finishing up a 500 whp build on a 2005 STI. Here's the list:

TiC Closed deck Honey Badger Short Block
Kurt Brown ported heads
GSC Springs
+1mm Ferrea Valves
Tomei custom cams
GTX3582 with 1.06 hotside
APS FMIC
Custom piping
EJ255 plastic intake manifold
Accessport tuning
ID1300 injectors
E65 fuel

This will be reliable if treated well and maintained properly. Not simple or cheap to build though.

Tony
500whp only for all that work? On a 1.06A/R?!?! Switch up to E85, ID2000cc injectors, dual pumper radium surge tank, -8an lines, and run a hearty 35psi through that thing!
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