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Old 10-04-2020, 12:05 AM   #1017
Irace86.2.0
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Quote:
Originally Posted by Calum View Post
1) It's damping, not dampening. You're not making it wet, your slowing the rate of change in a system.

2) You can accomplish the exact same thing with a basic needle valve. As it would need to be mounted to a car and you wouldn't want it to rattle, a pneumatic flow control valve that can be locked in position would be perfect. Something like this would likely be perfect for a remote mounted MAP sensor. https://www.grainger.com/mobile/prod...fc=MWP2IDP2PCP

But even just a remote mounted MAP sensor with a few feet of tubing would probably give enough damping to fix the issue.

Alternatively, while I haven't seen the dbox, I've filtered noise from control signals in the electronic realm as well. A simple first order low pass filter set to filter above say 400Hz would likely be sufficient. You can find calculators online easy enough.
1) I think dampening works. Just saying.

2) I like the idea of mechanical dampening. While a two foot tube could work to alter or disrupt the resonance, it seems like the waves could still propagate down the tube, no different than an instrument.
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