Thread: how much psi to run

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  1. #1 how much psi to run 
    GT Level Member rodman's Avatar
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    Will be getting trans done from trannyman shortly....wondering how much i can turn the boost up to...l32 stock internals...l26 uim hv3 er rockers oversized ic #65 injectors and lt1 maf z7 turbo
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  2. #2 Re: how much psi to run 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
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    8psi-12psi, if you have a tuner, above that...
    2001 GTP PT61 Turbo, E85, Stock Motor
    2011 Chevy Cruze MT6 1.4L Turbo
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  3. #3 Re: how much psi to run 
    DUI BABY Bio248's Avatar
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    hell, id shoot for 15 right away. get some meth on that thing.
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  4. #4 Re: how much psi to run 
    The Blue One blueguy's Avatar
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    Why not...

    F**k it...20 or go home.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
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  5. #5 Re: how much psi to run 
    GrandPrix Junkie Sabrewings's Avatar
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    I run 14.7 PSI with a TMIC. But, my situation is a little different.
    2004 Impala LS - got some mods sold!!!
    2009 Subaru Impreza WRX STI

    NAIOA moderator Still Imp'n, just in a different Imp.
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  6. #6 Re: how much psi to run 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by Sabrewings View Post
    I run 14.7 PSI with a TMIC. But, my situation is a little different.
    17psi with NO IC
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
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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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  7. #7 Re: how much psi to run 
    GrandPrix Junkie Sabrewings's Avatar
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    Quote Originally Posted by bluegtp91 View Post
    17psi with NO IC
    Just you wait. Before too long I'll see your 17PSI and raise you another 3.



    2004 Impala LS - got some mods sold!!!
    2009 Subaru Impreza WRX STI

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  8. #8 Re: how much psi to run 
    SE Level Member BlackGS's Avatar
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    Quote Originally Posted by rodman View Post
    Will be getting trans done from trannyman shortly....wondering how much i can turn the boost up to...l32 stock internals...l26 uim hv3 er rockers oversized ic #65 injectors and lt1 maf z7 turbo
    15 no problem. Just be careful you don't run out of MAF if you don't have an AFC.

    2000 Regal GS | Stattama Twin-Charge with Comp Turbo 6765 | 12.55 @ 110 15psi | Now running 20psi on E85!! |
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  9. #9 Re: how much psi to run 
    Donating Users chrisb's Avatar
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    i run 10 on a stock trans with an hv3! still going to! better knock on wood or somthing so i dont eat my words.
    99 Grand Prix old build- CAI, Custom exhaust, HV3, Stage 2 TB, custom tune, ported heads intense s1x cam, headers.
    Nothing great Just a small T66 Turbo with a Hv3 On a stock tranny untill i finish the other one.
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