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Thread: Does not really want to rev past 5k

  1. #1
    Skyline Enthusiast Registered User
    Join Date
    May 2018
    Location
    Azle,TX
    Posts
    2

    Does not really want to rev past 5k

    Hello all.
    I have a 1992 gtst with a rb25det swap and a power fc
    The car will rev really good until 5k then kinda just stops and sounds like 2step splitters and doesn't really want to go past.

    Changed spark plugs
    Liquid taped the coils
    Cleaned maf
    Haven't had time to check for boost leaks but pulls great vac and hits full boost on the gauge when driving but doesn't feel like it goes anywhere feels slower than my focus st.

  2. #2
    Skyline Enthusiast Registered User
    Join Date
    May 2018
    Location
    Azle,TX
    Posts
    2
    Update, have checked for boost leaks found two small ones and fixed those.
    Idles at about 1k.
    Still the same **** it says it hits full boost feels slow and doesnt really wanna go past 5k.

    If you dont really boost until you hit 6k rpms it feels like a rocket till 7.

    Its runs extremely rich at the moment also

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