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Go Back   IWSTI.com: Subaru WRX STI Forums > IWSTI Engine & Drivetrain > 2.5 Liter/Litre Factory Motor


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Old 04-05-2008, 10:44 AM   #1
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Default Mod Question....

well i am sort of new to this modifying of cars, so.... I have an 06 Sti, and i am trying to get 400-425bhp.... just want some input on what might be the best and/or simplest way to get that.


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Old 04-05-2008, 11:08 AM   #2
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Default Re: Mod Question....

are you looking for just straight power or reliable power. The simplest way to get 400-425 bhp is probably to get a fp green turbo kit and meth. To get 400 whp ud probably need at least a gt30r turbo kit. if u run just the turbo kit without built block, its just a matter of time before ur motor goes bad. if u build ur motor u'll be able to push that kinda power all day long no problem. Do a little poking around in the proven power section and see what u can find
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Old 04-05-2008, 11:45 AM   #3
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Default Re: Mod Question....

I'm getting over 400hp at the flywheel with a 20G, fmic, 850cc inj., and a fuel pump. If you want 400hp to the wheels, you better build-up your motor, because it will just be a matter of time on the stock engine.

Have you driven an STi with 350hp to the wheels ? It's really quite a bit of power.
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Old 04-05-2008, 11:56 AM   #4
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Default Re: Mod Question....

yea i didnt know if he meant bhp of whp so i just kinda assumed he meant whp cuz thats what most of us go by around here
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Old 04-05-2008, 07:00 PM   #5
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Default Re: Mod Question....

best simplest imo:
tbe, cai intake, tgv delete, 20g, fmic, injectors, boost solenoid, tune. Meth optional.
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Old 04-05-2008, 07:07 PM   #6
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Default Re: Mod Question....

You can get 400bhp on the stock turbo. Stage 2 is almost there, add some meth and your golden. 400whp will take a upgraded turbo.
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Old 04-06-2008, 09:10 AM   #7
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Default Re: Mod Question....

yea all i'm looking for is 400 BHP..... i'm going to take it slow with modifying the car, one step at a time..... so will my stock motor hold 400bhp safely?
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Old 04-06-2008, 11:55 AM   #8
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Default Re: Mod Question....

What are you a retard, 5 people have just told you that you can run 400bhp WITHOUT ANY HASSLES ON THE STOCK BLOCK!

To make 400WHP you will have to BUILD the block to keep it reliable. Do some research on here for once, or maybe actually read the responses in YOUR OWN THREAD!
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Old 04-06-2008, 11:58 AM   #9
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Default Re: Mod Question....

Quote:
Originally Posted by OBP 05 STi View Post
What are you a retard, 5 people have just told you that you can run 400bhp WITHOUT ANY HASSLES ON THE STOCK BLOCK!

To make 400WHP you will have to BUILD the block to keep it reliable. Do some research on here for once, or maybe actually read the responses in YOUR OWN THREAD!
There are a lot of people making over 400whp on the stock block with no problems, myself included. Its all in the tune. I've heard of people spinning rods at stage 2 levels, or around 300whp and most of the time they did not have a good tune or something failed for no apparent reason like an oil pump.
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Old 04-06-2008, 12:35 PM   #10
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Default Re: Mod Question....

blouch dom3 spools fast for a 400whp.
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Old 04-06-2008, 02:05 PM   #11
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Default Re: Mod Question....

I understand that some builds go over 400whp without building the block but it also depends on the dyno you are on. 400whp on a dyno dynamics like the one rocket rally uses would be very, very hard to reach on a stock block. The main point of my post was that the retard keeps asking the same questions when there are people with more patience then I have who have answered his stupid questions on here repeatedly and he still keeps asking them. Not only that, but there are 100's of threads on here with people hitting certain power levels and what they have done or what they have broken. Spend a few hours of research and it is pretty easy to see what must be done to achieve your goals.
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Old 04-06-2008, 04:40 PM   #12
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Default Re: Mod Question....

Quote:
Originally Posted by OBP 05 STi View Post
I understand that some builds go over 400whp without building the block but it also depends on the dyno you are on. 400whp on a dyno dynamics like the one rocket rally uses would be very, very hard to reach on a stock block. The main point of my post was that the retard keeps asking the same questions when there are people with more patience then I have who have answered his stupid questions on here repeatedly and he still keeps asking them. Not only that, but there are 100's of threads on here with people hitting certain power levels and what they have done or what they have broken. Spend a few hours of research and it is pretty easy to see what must be done to achieve your goals.

Kinda bold for just 10 posts huh
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Old 04-07-2008, 05:11 AM   #13
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Default Re: Mod Question....

somebody needs to relax
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Old 04-07-2008, 05:28 AM   #14
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Default Re: Mod Question....

Quote:
Originally Posted by OBP 05 STi View Post
I understand that some builds go over 400whp without building the block but it also depends on the dyno you are on. 400whp on a dyno dynamics like the one rocket rally uses would be very, very hard to reach on a stock block. The main point of my post was that the retard keeps asking the same questions when there are people with more patience then I have who have answered his stupid questions on here repeatedly and he still keeps asking them. Not only that, but there are 100's of threads on here with people hitting certain power levels and what they have done or what they have broken. Spend a few hours of research and it is pretty easy to see what must be done to achieve your goals.
Have you ever thought that he might be from a different country or that he is young. Maybe you should lighten up and listen yourself, considering he said BHP not WHP. He doesn't need a turbo upgrade if all he cares about is BHP. Regardless, lighten the hell up kid.


OP, start with a full TBE, CAI, Fuel Pump and maybe some injectors if your tune suggest it. If that feels slow, then look into upgrading your turbo to a 20G or GT49 turbo.
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Old 04-07-2008, 05:32 AM   #15
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Default Re: Mod Question....

Quote:
Originally Posted by LSE View Post
best simplest imo:
tbe, cai intake, tgv delete, 20g, fmic, injectors, boost solenoid, tune. Meth optional.

cai intake? is cai a new brand?lol


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