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Thread: bypass valve upgrade ?

  1. #1
    Junior SCH Member
    Join Date
    Oct 2002
    Posts
    5

    bypass valve upgrade ?

    When is it necessary to have a larger bypass valve? Or when is it a good idea to start thinking about getting one? How many guys are running the Vortech Maxflow one? This is on a 90GT with a Novi 2k making around 13psi.
    331 R-block, RAP Edelbrock heads, Holley intake, NOVI 2000, AFM powerpipe, TKO, EPEC

  2. #2
    SCH Member
    Join Date
    Jun 2003
    Posts
    59
    I had the exact same diverter valve that comes with the novi 2000 kit on my VWgti And I was seeing 21psi of boost with no problem. Hyperboost is a nice one. buying another one won't increase performance unless the one you have now is leaking.
    306 dss pro bullet,gt40x aluminum heads,Crane roller rockers,AFM b41 cam, cobra intake upper and lower match ported, 42lb injectors, FMU, pro-m 80 mass air, Morpheus power pipe, 255lph high pressure intank pump, trex inline pump, novi-2000 stock pullies 8-10psi, strange axles, 3:73 gears, full guages, tremec tranny, aluminum driveshaft, msd, msd boost retard, bbk headers, Mac h-pipe w/cats, 2 chamber flowmasters, eibach springs
    HP:446
    TQ:430

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