Thread: Why is my boost gauge only reading vacuum and no boost?

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  1. #1 Re: Why is my boost gauge only reading vacuum and no boost? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    5-10 psi, idk because your modded. A stock GTP is around 7-8 psi.

    With your flow mods and such it will cut down on boost PSI, but you still get the power because it flows better.

    Splice the wire into a wire that always gets power when the key is on or buy a TAP A FUSE or ADD A FUSE, thing at a local auto store and use that on you radio fuse.

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  2. #2 Re: Why is my boost gauge only reading vacuum and no boost? 
    GT Level Member Louie3's Avatar
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    5-10 psi, idk because your modded. A stock GTP is around 7-8 psi.

    With your flow mods and such it will cut down on boost PSI, but you still get the power because it flows better.

    Splice the wire into a wire that always gets power when the key is on or buy a TAP A FUSE or ADD A FUSE, thing at a local auto store and use that on you radio fuse.

    I'm getting around 10 psi :-)

    This weekend I'm going to tap it in so that when the lights turn on at night the gauge will also

    ZZP PCM, Wbody PCM, Custom PCM ( the best ), Headers, 3" exhaust, 3.4" pulley, ZZP 10.3 Wires, AL 104's, 160 tstat, 1.9 Rockers, Custom huge cone intake. Gunna push this GTP to the limit.
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