Thread: how much boost should my 3.1 make?

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  1. #1 how much boost should my 3.1 make? 
    kirkkarem1212
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    Default 08-15-2010
    ive got a intense stage 1 cam and a 3.1 sc pulley. how much boost should i be making?
    3.4 pulley, Borla Cat-Back, Headers, 3" Downpipe, Cat Del, Volt Booster, Trasher Air Box, K&N Filter, Intense Stage 1 Cam, 105# springs, Powder Coated TB, S/C, And Fuel Rails.
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  2. #2 Re: how much boost should my 3.1 make? 
    blueguy
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    Default 08-15-2010
    35.
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  3. #3 Re: how much boost should my 3.1 make? 
    nawarkk
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    Default 08-15-2010
    Buy a boost gauge and find out? They are not that expensive..
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  4. #4 Re: how much boost should my 3.1 make? 
    Rather B Blown
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    Default 08-16-2010
    Quote Originally Posted by bluegtp91 View Post
    35.
    id say about 40 at the wheels
    Quote Originally Posted by Reptile
    It sounds like you accidentally stuffed a midget in the downpipe, and he's hammering out an SOS to get out.
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  5. #5 Re: how much boost should my 3.1 make? 
    99prixgt
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    Default 08-16-2010
    1/2 psi
    16' wrx sti- stock
    06 Spice Red GTO- m6/exhaust/tune/suspension/377whp-383tq-sold
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  6. #6 Re: how much boost should my 3.1 make? 
    matt5112
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    Default 08-16-2010
    Quote Originally Posted by Rather B Blown View Post
    id say about 40 at the wheels
    yes 40 psi of boost at the wheels son.

    But if you're much over 10-13 I'd be concerned you're not flowing well enough.
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  7. #7 Re: how much boost should my 3.1 make? 
    Bio248
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    Default 08-16-2010
    depends.
    '05 CTS-V - Badass baby hauler.
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  8. #8 Re: how much boost should my 3.1 make? 
    blueguy
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    Default 08-16-2010
    Not every car is the same...mine made only about 12-13 on a 3.2" with stock heads and pacesetters/3" exhaust...ported everything else.

    My buddy's GTP saw 13-15psi on a 3.4" with PEM's and a 3" DP...even with the cutout open it still made 12...it just had a lot of boost...who knows...no codes and everything was fine.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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