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Will I be reaching 350whp?

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Old Mar 17, 2012 | 11:18 AM
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Will I be reaching 350whp?

Hey, I-club!

(Such a noob post I know)

But I'm kind of excited and would love to hear some input! I wanted to see if ill be reaching 350WHP with the set up I purchased. I cant install it just yet since I purchased the car from an auction, and it needs some body work to get done first!

- Perrin Headers
- Perrin Up-pipe
- Perrin Down-pipe (Catless)
- Perrin Catback
- Perrin Pulley
- Perrin Cold Air
- 850cc Deatschworks
- Spearco TMIC
- E85
- Looking to get tuned at EQ


Thanks! (Any help would be appreciated)
Old Mar 17, 2012 | 11:23 AM
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Ya you would
Old Mar 17, 2012 | 11:24 AM
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Need a fuel pump though
Old Mar 17, 2012 | 11:27 AM
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Originally Posted by LOL VTEC
Need a fuel pump though
Yes I purchased a Walbro 255..
Old Mar 17, 2012 | 11:41 AM
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Ditch the pulley...
Old Mar 17, 2012 | 11:48 AM
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Originally Posted by Javirex23
Ditch the pulley...
really why is that?
Old Mar 17, 2012 | 11:49 AM
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You won't hit it with out an EWG and you don't need a pully.. Also you drive a 07 sti so that engine will blow soon that is if your compression is still OK to tune!. Have money saved for a new engine

Last edited by 04caliwrx; Mar 17, 2012 at 11:52 AM.
Old Mar 17, 2012 | 11:58 AM
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Originally Posted by 04caliwrx
You won't hit it with out an EWG and you don't need a pully.. Also you drive a 07 sti so that engine will blow soon that is if your compression is still OK to tune!. Have money saved for a new engine
lol well thats not exactly what I wanted to hear? I will blow my engine from bolt ons and E85 interesting..
Old Mar 17, 2012 | 12:05 PM
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Originally Posted by 04caliwrx
You won't hit it with out an EWG and you don't need a pully.. Also you drive a 07 sti so that engine will blow soon that is if your compression is still OK to tune!. Have money saved for a new engine
Lol, the 07 STI has the same motor ever other year had. Funny how people don't understand that, only difference is the factory tune that sucked. So if you trashed your car while on the factory tune then it could happen! EWG on a stock turbo does very little if anything. Ed will tell you the same.......
Old Mar 17, 2012 | 12:10 PM
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07's are known to have weak ringlands. You could be lucky and not have the pistons go. If you do have Ed tune it just talk to him and go over your plans for the car.

I hit 335whp 400wtq on E85 on a Catted turboback, 850cc injectors, fuel pump, cross over pipe, MBC and SPT intake
Old Mar 17, 2012 | 12:12 PM
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SO BEING into subaru you should know that they changed piston manufacturers in 07 to a different company. Everyone know this. Just like everyone know that the 2007 sti blows more then any other engine! Do those mods and see how long the car lasts. And the ewg does do stuff on a stock turbo, I would say about 20whp on a stock turbo. Look at cornfeds car...
Old Mar 17, 2012 | 12:13 PM
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Originally Posted by E85FTW
really why is that?
I had one. and a Subaru Mechanic with years of experienced told me that that it wasn't very good. And that a lot of Subaru engines he rebuilt had one. Coincidence? Idk but I trust his judgment. I took it off and sold it. Good luck with your tune!
Old Mar 17, 2012 | 12:29 PM
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Originally Posted by 04caliwrx
SO BEING into subaru you should know that they changed piston manufacturers in 07 to a different company. Everyone know this. Just like everyone know that the 2007 sti blows more then any other engine! Do those mods and see how long the car lasts. And the ewg does do stuff on a stock turbo, I would say about 20whp on a stock turbo. Look at cornfeds car...
Ok so what would it take for me to run 350whp safely?

Originally Posted by Javirex23
I had one. and a Subaru Mechanic with years of experienced told me that that it wasn't very good. And that a lot of Subaru engines he rebuilt had one. Coincidence? Idk but I trust his judgment. I took it off and sold it. Good luck with your tune!
Weird! Thanks for the info man!
Old Mar 17, 2012 | 03:22 PM
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Talk to LIC, I remember when I first got my car and the pulley tore apart they told me that would be a bad idea.
Also Matt is right, subaru changed to chinese manufactured pistons and rings in 07 the crap tune made it worse and most noticeable that year. It break down all depends on the driver and how its tuned. Seems to be the tread that anything canbus has this problem from factory.

As long as you have good compression you should be fine to tune the car but be prepared for stuff to go bad and plan on building the motor if you plan on hitting 350. 300-320whp on pump is a good threshold that the stock blocks can hold and be safe. Yeah you can hit 350 but it has a greater chance of blowing up on you.

What are your plans with the car track, autox, stupid 7th street bs, or DD? You have a good list to start off with, have you thought about the clutch too? Also with power you're going to want stopping power and suspension.

Last edited by Heedz; Mar 17, 2012 at 03:25 PM.
Old Mar 17, 2012 | 06:19 PM
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Originally Posted by Heedz
Talk to LIC, I remember when I first got my car and the pulley tore apart they told me that would be a bad idea.
Also Matt is right, subaru changed to chinese manufactured pistons and rings in 07 the crap tune made it worse and most noticeable that year. It break down all depends on the driver and how its tuned. Seems to be the tread that anything canbus has this problem from factory.

As long as you have good compression you should be fine to tune the car but be prepared for stuff to go bad and plan on building the motor if you plan on hitting 350. 300-320whp on pump is a good threshold that the stock blocks can hold and be safe. Yeah you can hit 350 but it has a greater chance of blowing up on you.

What are your plans with the car track, autox, stupid 7th street bs, or DD? You have a good list to start off with, have you thought about the clutch too? Also with power you're going to want stopping power and suspension.
So it looks like nobodies had anything good to say about the pulley.. wish I didn't get it.. and makes a lot of sense i don't know if I'm up to taking that risk of blowing the damn thing up.. lol I take it your from the Bay Area, since you know about (7th street)? I'm actually going to DD the car so I need to make reliable power.. Thanks for the info man!



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