Why am i not getting good MPG?

[Jackpine]

Originally Posted by longshot270

I was going to say the name too but I couldn't remember how to spell it either.

Helmholtz! Sheesh!

Here's a Wikipedia article on it: Helmholtz resonance - Wikipedia, the free encyclopedia

Note near the bottom it talks about reducing drag on aircraft bu 40% using acoustic liners based on the Helmholtz principle. This effect was something I was a bit concerned about when people talked about removing the resonators from intakes. I thought it might induce standing waves in the intake that would hurt its efficiency. I think that is why "drone" is probably NOT a good thing too.

- Jack