Thread: why so much boost

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  1. #1 why so much boost 
    GT Level Member jrb1027's Avatar
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    Hey so i was watching my boost guage today and noticed its hitting 13psi for a few seconds, it shifts at 5700

    mods
    intake
    headers
    rockers
    genv
    3.4

    I have a fs intercooler that im putting on soon, and a 3.0 pulley, also plan to buy 60# injectors and hp tuner so i can switch from 93 to e85 at the track. do you think i will over boost my car with the 3.0 pulley, wouldnt that put it somwhere around 17psi, aka blown heads. It seems to me like i need a cam and heads
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  2. #2 Re: why so much boost 
    DUI BABY Bio248's Avatar
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    sounds fine to me. it's still cold outside.

    with an intercooler you'll lose boost. that 3.0 won't push 17lbs. and even if it did that doesn't automatically mean you're gonna blow the head gaskets.
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  3. #3 Re: why so much boost 
    Schooner Tuner ADrugDealer's Avatar
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    I hit 24psi at one point on my GenV in cold weather. Your fine.
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  4. #4 Re: why so much boost 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Because gen v and cold.

    SMGPFC Member #1
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  5. #5 Re: why so much boost 
    GT Level Member jrb1027's Avatar
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    oh good ok I always thought over 15 was a death sentence

    btw the intercooler is an irc so its about 2 inches thick do you have any idea how much boost you loose with that thick of ic
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  6. #6 Re: why so much boost 
    Schooner Tuner ADrugDealer's Avatar
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    KR is a death sentence. Boost is awesome.
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  7. #7 Re: why so much boost 
    GT Level Member jrb1027's Avatar
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    yea i dont even want to talk about kr, i have a bunch of false kr, I have to bring it up to 3k before i can wot or it shows like 15kr, otherwise she zero all the way to 150 except for soe blips at the beginning of 3rd
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  8. #8 Re: why so much boost 
    Schooner Tuner ADrugDealer's Avatar
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    Check your ICM ground.
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  9. #9 Re: why so much boost 
    pssssshhhhhhtt Jomamma's Avatar
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    Quote Originally Posted by jrb1027 View Post
    oh good ok I always thought over 15 was a death sentence

    btw the intercooler is an irc so its about 2 inches thick do you have any idea how much boost you loose with that thick of ic
    Oh you're the one that bought that.

    I wanted that.
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  10. #10 Re: why so much boost 
    GXP Level Member darkhorizon's Avatar
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    Boost is mostly just valves floating. No matter what rockers you have youll need upgraded springs to avoid the sudden decrease in volumetric efficiency at rpm.
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