Expected power figures?
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This is a discussion on Expected power figures? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Hi im sure to website save me looking through pages and pages of forums i just thought i would ask ...

  1. #1
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    Smile Expected power figures?

    Hi im sure to website save me looking through pages and pages of forums i just thought i would ask the question myself...

    I have a 02 wrx, 2.0L
    3" exhausted
    BOV
    Everything else is stock...

    What power figures should i expect with theses mods...

    Vf39 turbo
    STI pink injectors
    Walbro 255 fuel pump
    SRI air intake
    STI top mount
    TUNE...

    Thats covering the main things.

    So from 175ish awhp to ........?

    Whats everyone out there think?

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    Registered User Ruh Roh's Avatar
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    what kind of exhuast do you have? is your stock uppipe replaced as well?

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    Quote Originally Posted by Ruh Roh View Post
    what kind of exhuast do you have? is your stock uppipe replaced as well?
    Im not sure of either, but as for the uppipe if it hasn't already been done when they go through and install everything, its something that if it needs doing i will get it done

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    Registered User Ruh Roh's Avatar
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    yes for your current setup. (if its a 3" turboback exhaust) youll want a catless uppipe and a tune as soon as you can. there a few engine management routes such as an Accessport, protune/dynotune, etc.

    Were the only things the previous owner told you about the car were 3" exhaust and bov?

    Do you have the stock exhaust, stock bpv/bov?

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    Yeah the guys that will be doing all the work know im willing to do catless uppipe if it hasn't already got one, yeah after all the mods are done (turbo, injectors etc etc) then it will be going over to a turbo tuning specialist.

    Nah i just brought car as if about 12mouths ago, and person before had very little info on what parts were used

  7. #6
    Registered User Ruh Roh's Avatar
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    ahh well if u want help from the forum post some pictures of your engine bay, where the turbo meets the exhaust, the exhaust under the car and a hard angle but at the bottom of the turbo where it meets the uppipe and we can try to look for what mods it has already done to it.

    if your running a full turboback you shouldve had a tune a year ago, along with a catless uppipe. look for the stock bov as well because the only thing yours is doing now is being a noise maker.

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    I was more just after rough power figures for the mods listed, as the people doing the work are more then happy to do uppipes etc.

    I have standard BOV, but i have been advised that the one im running is better and i should keep it on

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    Registered User Ruh Roh's Avatar
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    alright. when are you going to get the mods done?

    just trying to help you have a better running car now than waiting for the parts to be installed and tune.

    not sure on the numbers. less than 300whp maybe arounf 250whp. ill let another member take a guess.

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    Quote Originally Posted by Ruh Roh View Post
    alright. when are you going to get the mods done?

    just trying to help you have a better running car now than waiting for the parts to be installed and tune.

    not sure on the numbers. less than 300whp maybe arounf 250whp. ill let another member take a guess.

    ouch... that low?
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

  12. #11
    Registered User Ruh Roh's Avatar
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    not sure. but its a sti turbo and injectors. depends on if your going for a conservative tune, what dyno, elevation, temperature. theres not going to be one straight number, as u know

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    Quote Originally Posted by Ruh Roh View Post
    not sure. but its a sti turbo and injectors. depends on if your going for a conservative tune, what dyno, elevation, temperature. theres not going to be one straight number, as u know
    i'm not at all familiar with 02 WRX's, so I have no idea what kind of power he would make... I just thought with the bigger turbo that he would be able to get to 300... BUT with a baseline of 175 that is asking a lot. I guess they power was lower on those than I realized.
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

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    Registered User Ingo's Avatar
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    Remember - it's a 2.0L... I'm sure that the 2.5 can make more when pushed sufficiently. But there's also likely less weight to accelerate, so it'll go just as well, if not better...
    You can't have everything - where would you put it?

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    Quote Originally Posted by scoobees View Post
    I was more just after rough power figures for the mods listed, as the people doing the work are more then happy to do uppipes etc.

    I have standard BOV, but i have been advised that the one im running is better and i should keep it on
    No need to have an aftermarket BOV. The stocker is good for 20psi or so, and will not lead to the possibility of problems like a VTA BOV.

    A VF39 and supporting mods will probably get you to 275 or so WHP.
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    I got 285 on a mustang dyno with a vf43 on a 2.5l
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