Slow wrx New motor
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This is a discussion on Slow wrx New motor within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Whats up guys? i need some input on my wrx, i recently put in a new motor from the dealer, ...

  1. #1
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    Slow wrx New motor

    Whats up guys? i need some input on my wrx, i recently put in a new motor from the dealer, had the heads redone so everything is brand spanking new. The problem i am having is that the guy that installed my motor told me that my td04 was shot and he had a vf34 layin around so he threw it in for me but now the car is driving slow with boost comin in at 3500-5000 rpm any ideas should i change fuel pump and injectors and get a tune? The motor itself has about 900 miles on it currently...

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    Registered User lytlec's Avatar
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    Umm......do you have the 2.5 or the 2.0.....I would suggest getting the proper supporting mods for that turbo....
    <-------- Taylor Swift.
    2006 WRX 330whp. 300wtq. Slow.
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    ClubWRX.net Vendor adam@kronosperformance's Avatar
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    Yeah you'd def need a tune done.
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    Registered User jd92677's Avatar
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    I'm surprised it's lasted 900 miles. You need injectors, fuel pump, and most important, a proper tune
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  6. #5
    Registered User lytlec's Avatar
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    If I remember correctly thats the jdm sti turbo...so yeah...if you have the 2.5 motor it all ready has the bigger injectors...if not..get them...and do fuel pump and a tune...!!!!!
    <-------- Taylor Swift.
    2006 WRX 330whp. 300wtq. Slow.
    Hawk-Eye Alliance #137
    First Mods...what to do.
    Subaru Guide

  7. #6
    The Default One SeattleJeremy's Avatar
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    Please read this thread
    Yes, you need an EM for engine mods

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    It is a 2.0. Any ideas on whats the best set-up to go with and anyone knows any shops out in northeast Pa that can tune my ecu? I dont want to hurt my new motor should i purchase a td04 and put it in until i get all the supporting mods.....

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    ClubWRX.net Vendor adam@kronosperformance's Avatar
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    Quote Originally Posted by Feelme View Post
    It is a 2.0. Any ideas on whats the best set-up to go with and anyone knows any shops out in northeast Pa that can tune my ecu? I dont want to hurt my new motor should i purchase a td04 and put it in until i get all the supporting mods.....
    Backyard Turbo

    He's our tuner. Does great work.
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    ok cool i will give them a call. What you think about my set up what type of injectors would be an ideal one for my vf34?

  11. #10
    The Default One SeattleJeremy's Avatar
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    Call your turner about tell them what turbo and engine you have, then ask about their recommendations on injectors.
    For a VF34 you can get away with a set of 550cc injectors. Like the stock Blue 06+ WRX or Pink STI injectors. However, your tuner may recommend 650cc injectors.

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