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Shooshing induction noise on V8

Discussion in 'VN - VP Holden Commodore (1988 - 1993)' started by Circlotron, May 28, 2011.

  1. Circlotron

    Circlotron New Member

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    Everyone that drives a VN or VP V8 knows that when you give it a bootfull, particularly if you have a quiet exhaust, then you can plainly hear the roar of the air pulses being sucked into the engine making a real racket. I suppose the ideal solution would be to have a rigid, non-flexible airbox and a tuned length of tube coming out of it for the air to go in. Same deal as a stock air cleaner housing on a carburettor. Even the same deal as a subwoofer box and port tube. A Helmholtz resonator if you must.

    Helmholtz resonance - Wikipedia, the free encyclopedia

    Has anyone here ever mucked around to see what can be done to tame this source of noise?
     
  2. Jonno

    Jonno :)

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    guessing u dont like induction noise?

    why not just do what ford and Mitsubishi and many other car companies do and get a pipe added ontop so the air and ...wait ill get a pikk

    [​IMG]


    ok u see where the pipe goes into the engine.. and theirs that big box sitting onto of the engine
    the air goes into that before it travels in and it silences the intake
     
  3. savage1987

    savage1987 Donating Member

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    same principle as preventing water hammer :)
     
  4. Circlotron

    Circlotron New Member

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    Okay. Just for a start I might see if I can add a length of inlet pipe to the airbox and see if that helps. Might even use it to draw in cold air too. Airbox is pretty flexy so maybe a slab of something thick glued to the outside flat surfaces would be the go.
    The whole idea is to not attract attention when I give the car a bit of a squirt.
     
  5. ucwepn

    ucwepn America just kicked in yo

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    Cold air intake quiets mine down allot, when I take it off for more noise I can hear it sucking because of the enlarged hole
     

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