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Thread: Exhaust output irradic?

  1. #1
    Join Date
    Dec 2023
    Location
    USA NC
    Posts
    13

    Default Exhaust output irradic?

    Back again! Now is a question. With the PPE headers, muffler removed also with PPE high flow up pipes and down pipe there is what sounds like a miss at the exhaust tip at idle and a little at say 1000 rpm's? But engine doesn't vibrate at all, and doesn't feel like a miss at all? First thought was a valve needs adjusting but that was done twice before we buttoned it up. Any thoughts? Turbo needs more rpm's to spool up? I am praying not a valve adjustment and we all know why! Has anyone with my engine exhaust setup heard of this? A prominent puff puff vs a smooth flow.
    Thanks to all who reply!

  2. #2
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,652

    Default

    That's what unloaded straight-pipe sounds like. The turbo won't spool/boost without a load. Do a brake stand and compare that.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  3. #3
    Join Date
    Dec 2023
    Location
    USA NC
    Posts
    13

    Default

    I was hoping for an answer that makes me smile!!! Thanks so much. Another guy mentioned that it could that deal. Appreciate it AGAIN!

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