boost issues

Discussion in 'Modifications And Maintenance' started by ruberdukwrx, Jul 8, 2009.

  1. ruberdukwrx
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    ruberdukwrx Well-Known Member

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    I am working on a friend of mines car and when you go into boost it dosnt stay spooled consistantly it spools then stops a sec then spools ? is he running to high of boost for the stock turbo? Or what?
     
    ruberdukwrx, Jul 8, 2009
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  2. Squiggly
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    Squiggly Squiggly

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    Squiggly, Jul 8, 2009
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  3. john
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    john Well-Known Member

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    What car, what mods, etc. Perhaps the wastegate is getting blown open or the BOV is leaking?
     
    john, Jul 8, 2009
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  4. ruberdukwrx
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    ruberdukwrx Well-Known Member

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    it is a stock wrx with a perrin manual boost controller and and cold air intake and he is running a utec thats it!
     
    ruberdukwrx, Jul 8, 2009
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  5. bobafett04wrx
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    bobafett04wrx New Member

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    How much boost does he see and when does it stop and spool up or whatever?
     
    bobafett04wrx, Jul 8, 2009
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  6. WRX1
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    WRX1 _ Staff Member

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    1st guess is overboost. Do you know what psi it is running up to before it drops??

    I HIGHLY doubt you need to spend $100 for a part. I would say that with the MBC and utec, you didn't make the correct changes to allow more than 20psi.

    Russ
     
    WRX1, Jul 8, 2009
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  7. ruberdukwrx
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    ruberdukwrx Well-Known Member

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    quits spool at about 16,17 psi
     
    ruberdukwrx, Jul 8, 2009
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  8. Nuke
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    Nuke Well-Known Member

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    see if the vacuum lines are pinched
    second, check the solenoid
     
    Nuke, Jul 8, 2009
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  9. WRX1
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    WRX1 _ Staff Member

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    Is this on a boost gauge, or the utec?? The utec has boost cut at 20psi. I have seen 3-4psi differences between gauges and utec/ecu.

    Russ
     
    WRX1, Jul 9, 2009
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  10. ruberdukwrx
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    ruberdukwrx Well-Known Member

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    the boost guage reads 16 ,17 pounds of boost!
     
    ruberdukwrx, Jul 9, 2009
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  11. Nuke
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    Nuke Well-Known Member

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    It's probably the controller.
    One of the members here had the perrin mbc, kept having boost issues.
    Swapped and went with a bcs and everything was fine.
     
    Nuke, Jul 9, 2009
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