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Thread: stuck at 8 psi with waste gate all the way open

  1. #1
    Garrett booster
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    stuck at 8 psi with waste gate all the way open

    could it be bad gage bad waste gate...?

  2. #2
    boostaholic
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    Re: stuck at 8 psi with waste gate all the way open

    close the waste gate and it will boost higher.


    need a lil more info

  3. #3
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: stuck at 8 psi with waste gate all the way open

    +1 on more info. What are you doing to control boost? What year car etc.

  4. #4
    Garrett booster
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    Re: stuck at 8 psi with waste gate all the way open

    it a 89 dodge daytona c/s 2.5L. i have a mbc but it aint hooked up at the moment. the accuator wasnt hooked up to the door wen i got the car so no boost wen i stated on it. so to c how much boost it would make we opened it all the way up and only got 8 psi. idk if that the computer want let it make ne more or wat but i wantin it to make all it can with out burin up my pistons. ne ideas.?

  5. #5
    turbo addict
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    Re: stuck at 8 psi with waste gate all the way open

    If you open up the waste gate you loose boost (dumping the exhaust presure) you want to keep the gate closed until boost goal is reached .Dont go above 16psi with out Mods!

  6. #6
    Garrett booster
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    Re: stuck at 8 psi with waste gate all the way open

    so dont go over 16 psi on a bone stock 2.5 and it will be safe rite?

  7. #7
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    Re: stuck at 8 psi with waste gate all the way open

    Quote Originally Posted by daytona boys View Post
    so dont go over 16 psi on a bone stock 2.5 and it will be safe rite?
    Sounds like you have a Mitsu turbo non-intercooled 2.5 T1.

    If the car is all stock with no mods and the vacuum hoses are all hooked up correctly according to the sticker under the hood, you will probably only see a max of 10 psi.

    If you are manually controlling boost with an MBC or you tied the waste gate shut, the stock computer will shut off the injectors on anything above 14 psi of boost assuming you have not modified the vacuum line going to the MAP sensor.

    So, hook the waste gate actuator arm back up to the waste gate. Double check all vacuum lines and drive the car. Let us know what you have for boost.

  8. #8
    turbo addict
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    Re: stuck at 8 psi with waste gate all the way open

    slow down, proof read your post, and use whole words so we can understand what you're trying to ask.

  9. #9
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    Re: stuck at 8 psi with waste gate all the way open

    ok ill double check everything and take it back out for a drive but i got to get another axle first i popped one the other day baggin 2nd. lol
    Last edited by daytona boys; 10-13-2009 at 05:02 PM.

  10. #10
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: stuck at 8 psi with waste gate all the way open

    I wouldn't go over 10-12lbs. thinking that it was a sure thing on a 20+ year old car.

  11. #11
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    Re: stuck at 8 psi with waste gate all the way open

    that what i was thinkin 10 lb for right now one day i goin to bigger turbo and building the whole engine but all that in time to come. plus with this being my first turbo car it going to take some gettin use too. i built plent of imports on just motor but never with a turbo

  12. #12
    Garrett booster
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    Re: stuck at 8 psi with waste gate all the way open

    First turbo Mopar?

    Read this first. www.thedodgegarage.com

  13. #13
    Garrett booster
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    Re: stuck at 8 psi with waste gate all the way open

    yea first turbo car period

  14. #14
    turbo addict
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    Re: stuck at 8 psi with waste gate all the way open

    This is also a good read. http://minimopar.knizefamily.net/

  15. #15
    Hybrid booster Turbo Mopar Vendor
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    Re: stuck at 8 psi with waste gate all the way open

    Where is Inman?

    Inman near Boxmeer, Netherlands
    Inman, Fayette, GA 30215
    Inman, Gallatin, IL 62979
    Inman, McPherson, KS
    Inman, Holt, NE
    Inman, Wise, VA 24216
    Inman, Marion, TN 37397
    Inman, Otter Tail, MN
    Last edited by JamesL; 10-14-2009 at 05:45 PM.
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  16. #16
    boostaholic
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    Re: stuck at 8 psi with waste gate all the way open

    i kinda wondered the same?

  17. #17
    Garrett booster
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    Re: stuck at 8 psi with waste gate all the way open

    we a small town in spartanburg county in south carolina about 5 miles from the north carolina line. me and my buddys are just some small town county boys that like to go fast.

  18. #18
    turbo addict
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    Re: stuck at 8 psi with waste gate all the way open

    You know there are quite a few turbo dodge people in the area right?

  19. #19
    Garrett booster
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    Re: stuck at 8 psi with waste gate all the way open

    really the only one i know is cotton owens but he dont want to turn lose of non of the daytona stuff he got. But besides him i really dont know who else messes with mopar turbo stuff.

  20. #20
    turbo addict
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    Re: stuck at 8 psi with waste gate all the way open

    check out boostedmopar.com

    there are three or four guys in Greer/Inman...and a few us actually have fast cars....

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