Subaru WRX Forum banner

1 - 18 of 18 Posts

·
Registered
Joined
·
13 Posts
Discussion Starter · #1 · (Edited)
https://youtu.be/d9yZ0_saBzk
Dyno run video 305 hp/311tq @18psi 93 octane

Hey im new to this forum. Im still not sure if i want to keep modding my 2010 wrx or trade for a new sti, but i figured id share what i have going on and maybe get some opinions down the line.

2010 wrx sedan
Stock turbo(ported and polished wastegate) to control overboosting
Cobb ebcs
Cobb turbo inlet
Cobb sf intake plus cold air box
Perrin throttle body inlet
Invidia catted downpipe(ported and polished )
Q300 catback with resonator removed
Cobb ap v3 with custom tune by andy brahy @rt tuning in se pa
Whiteline rear swaybar 22mm with endlinks and swaybar lockdown kit
Perrin trans mount
Perrin radiator cover
 

·
BooSTIng
Joined
·
2,253 Posts
Welcome to Clubwrx!!! Would love to see some pictures! And your profile says southern central PA. Where abouts? Im like 15 minutes from the PA border in Md.
 

·
Registered
Joined
·
13 Posts
Discussion Starter · #3 ·
Saxton pa. Its about 30 minutes from altoona. Im from se pa so my car was tuned at rt tuning. Looks like the closest shop to me is tpg. Idk anything about them though. Im looking at doing headers, ewg, and a billet vf52 modified, 750(ish) injectors, and a dw pump. Ill def need a shop for the tune once i get that far. Might be next tax return. Or ill trade for a new sti. Not sure yet.
 

·
BooSTIng
Joined
·
2,253 Posts
Im about an hour from Altoona. Look into IAG performance in Wesminster Md. That's where I go and they are excellent. Should only be a couple hours from you.

And if I were you, I would just upgrade your turbo to a 20G. As even a modded vf52 will still keep you limited the lower-mid 300whp range with pump gas. As far as exhaust manifolds (headers) go, I would highly suggest getting a equal length manifold. And for injectors I would go with the ID1050x's and a larger fuel pump.
 

·
Registered
Joined
·
13 Posts
Discussion Starter · #5 ·
Wont go equal length. I like the rumble too much lol. And wouldnt a 20g give me more lag? My ported vf already flows better but gives more lag. Idk im torn. It is my daily driver

I want to break 350hp, but with a wide powerband.
 

·
Super Moderator
Joined
·
10,941 Posts
Keep it. No reason to sell it

Sent from my SAMSUNG-SM-G935A using Tapatalk
 

·
Æternum
Joined
·
15,538 Posts
I want to break 350hp, but with a wide powerband.
You want a better powerband, more power. Sorry, but the UELH needs to go. Granted, there is no quantifying "wide powerband," but typically "more power" and "wider powerband" do not belong in the same sentence. Unless you are talking about ELH. It's really the only modification (save for the downpipe) that will add torque everywhere in the powerband with virtually no downside. Keep in mind it is a design weakness from the factory.

If you want an ultra-wide powerband, the low mount turbo is really the way to go. That's evidenced by the new FA20F motor and the type of torque curve produced by a 2L motor.
 

·
Registered
Joined
·
13 Posts
Discussion Starter · #8 ·
....either way my ported vf52 needs to go. Its cracked at the wastegate port. I just dont want huge lag, or a powerband that starts at 5k. Right now boost hits 18psi around 3500 then drops off around 6k. It felt better before the boost creep issues and the port job on the turbo.
 

·
Registered
Joined
·
13 Posts
Discussion Starter · #9 ·
Also i hear the pistons/ trans cant handle past 350whp anyway so thats my goal give or take. Im not rich enough for a built motor
 

·
Super Moderator
Joined
·
10,941 Posts
I can't recommend a specific turbo, but equal length headers and a twin scroll turbo should help give you a stronger wider powerband.

Sent from my SAMSUNG-SM-G935A using Tapatalk
 

·
BooSTIng
Joined
·
2,253 Posts
The 20G really isn't a huge turbo. Although it will push the powerband back some, the turbo lag is not much worse than the stock vf52. A 20G would move the powerband back by a few hundred rpms, but hold power pretty much entirely through the rest of the rpms range as opposed to the vf52 that dies shortly after 5k rpms.

And like the others said, a el manifold is the way to go if you want what you are looking for.
 

·
Registered
Joined
·
1,196 Posts
Wont go equal length. I like the rumble too much lol.
You're a fool just like me, sir. I love the rumble.

As for keeping it vs. selling it, I vote keep it. The STI is just a somewhat better version of your WRX, but it may not be different enough to make the change. Wait until a new generation with a new motor comes out.
 

·
Æternum
Joined
·
15,538 Posts
Wait until a new generation with a new motor comes out.
But wait! We already established that the "rumble" is a requirement. Subaru wouldn't be stupid enough to make the same mistake twice. Or would people be stupid enough to buy a car based on how it sounds? Maybe Subaru likes money? WHO'S RIGHT HERE?
 

·
Registered
Joined
·
13 Posts
Discussion Starter · #15 ·
It seems to be an ongoing debate right now whether uel or elh, but i dont see any proof of one being drastically better than the other. Kind of reminds me of the dilema of whether to go catted or catless. I listened to everyone else and went catted because i was told it would prevent overboost. Well i had it anyway and had to port out the turbo(for lack of cash to get ewg) to fix it then pay for a retune. Now i want to go catless anyway because i am emissions exempt out here in the boonies. Point being its all personal preference but i may consider elh when the time comes

My dilema was more whether its worth doing in the first place or if i should trade it up for an sti in a year or two(also depending on the 2020 sti updates) shes getting old, rusted, faded, chipped paint, trans blew once, firewall cracked/fixed, clutch linkage failure, bearing whine, suspension wear, steering gear failure, etc etc etc. Its seen alot lol
 

·
Super Moderator
Joined
·
10,941 Posts
There is no debate. Equal length headers are 100% the better option. Why do you think nobody uses unequal length headers anymore

Sent from my SAMSUNG-SM-G935A using Tapatalk
 

·
Registered
Joined
·
13 Posts
Discussion Starter · #17 ·
There is no debate. Equal length headers are 100% the better option. Why do you think nobody uses unequal length headers anymore

Sent from my SAMSUNG-SM-G935A using Tapatalk
Im just trying to do research before i speak on the matter. I wasnt trying to argue any point. I just want to see some kind of proof as to how much difference it makes
 

·
Super Moderator
Joined
·
10,941 Posts
Nobody gets dyno results after installing uel or el alone. Just considering that twin scroll turbos offer far better efficiency, and a wider stronger powerband, there isn't any reason to even consider uel with twin scroll turbos available.

Sent from my SAMSUNG-SM-G935A using Tapatalk
 
1 - 18 of 18 Posts
Top