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DOC race manifold experience

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  • DOC race manifold experience

    Hey im wondering if anyone has any experience with doc race rbx manifold on their setup? Reason im asking is because im having an overboosting problem with this manifold.
    My specs are:
    Garrett GT3582r, T4 flange, .82 A/R hotside .70 coldside
    Tial 44mm mvr with a 10lb spring inside.
    Vipec v88 ecu
    Im looking to to run 17psi but apparently it is spiking up to 23psi...has anyone one else had this problem with the same setup? I realize the dump tube is basically 90 degrees to the manifold but would the be the cause? From the last I heard they said either get a smaller turbo or housing. One problem after another you know how it goes haha Any help would be really appreciated!
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