Miata Turbo Forum - Boost cars, acquire cats.
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Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   Engine Performance (https://www.miataturbo.net/engine-performance-56/)
-   -   Induction noise - reduction methods (https://www.miataturbo.net/engine-performance-56/induction-noise-reduction-methods-55172/)

JasonC SBB Jan 27, 2011 12:03 PM
Originally Posted by 240_to_miata (Post 683117)
true. Most acoustic resonator style sound cancellation techniques are "tuned"
And this is why in cars helmholtz resonators are typically only used in intakes to kill resonant drones due to the particulars of their piping, and are used in power generator setups (which run at a fixed RPM).

BarbyCar Jan 27, 2011 05:10 PM
Try it without the BOV and associated hoses installed and re-tune your supercharger inlet TB "crack". I bet your whine goes away, mine did.

Unless your BOV is a sequential and properly set up, it will be leaking under boost.

richyvrlimited Jan 27, 2011 05:20 PM
Worth a go! cheers BarbyCar.


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