Woah!?

Discussion in 'Modifications & DIY how-to' started by KA05STi, Aug 7, 2007.

  1. KA05STi

    KA05STi Member

    umm.. I was driving home from work, i have about 600 miles on my motor since the seller took the utec off and my car is acting different. Now it seems like it boosts twice as fast and not as much vaccume (sp). why would this happen?
     
  2. Kokopelli

    Kokopelli Active Member

    What mods do you have?

    Has the ecu tuned been tuned/flashed by any means since the removal of the UTEC?
     
  3. KA05STi

    KA05STi Member

    aps sr40 turbo, HKS CBE, CAI, RFL-BOV, aps fmic.. hasn't been tuned (yet) since utec removal..
     
  4. Kokopelli

    Kokopelli Active Member

    Do NOT push your car until you get it tuned or soon you will be looking for a new block.


    You have quite a bit of mods and there is no way the ecu can compensate for them.

    .
     
    Last edited: Aug 7, 2007
  5. KA05STi

    KA05STi Member

    yeah.. well im running 14 psi and it drops to 12..
     
  6. Jake

    Jake Active Member

    sounds like you need a tune to me.
     
  7. KA05STi

    KA05STi Member

    this is true
     
  8. Kokopelli

    Kokopelli Active Member

    What injectors?
     
  9. KA05STi

    KA05STi Member

    stock
     
  10. BrianGT

    BrianGT Banned

    yes, have THE SIEGEL put his magic hands on it with some engine management, and you should be good to go.
     
  11. Kokopelli

    Kokopelli Active Member



    Are they modified? The reason I ask is the sr40 is too big of a turbo to run on the stock wrx injectors.


    ( this is based on the assumption that from your nic that your car is an 04 wrx )
     
  12. KA05STi

    KA05STi Member

    unmodified.. wastegate goes crazy constantly.. get 22 mpg
     
  13. Kokopelli

    Kokopelli Active Member

    I would run a line from the compressor cover straight to the wastegate bypassing the stock boost controller until I could get a tune. I think the wastegate spring in the sr40 is only a 10 psi spring.

    This should give you a little safety from accidentally over boosting.
     
  14. KA05STi

    KA05STi Member

    it has a tee on it that goes to a turbo xs boost something.. doesn't look like a controller, but it has a + - and its all the way -
     
  15. Kokopelli

    Kokopelli Active Member

    That just helps the stock boost controller bleed off a little more. It should be t'd to the stock boost controller too.
     
  16. KA05STi

    KA05STi Member

    i think it is.. i have to look tomorrow
     
  17. WJM

    WJM Banned

    oh noes.
     
  18. KA05STi

    KA05STi Member

    whats the stock boost?
     
  19. KA05STi

    KA05STi Member

    sounds bad :eek:hnoes:
     
  20. Kokopelli

    Kokopelli Active Member


    You are running about stock boost levels just with a bigger than stock turbo.



    not as bad as when you get the bill for the 2.5 swap ;)
     

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