Shooshing induction noise on V8

[Circlotron]

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?

[Jonno]

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




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

[savage1987]

same principle as preventing water hammer

[Circlotron]

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.

[ucwepn]

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